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LMV358Q1MMX/NOPB

LMV358Q1MMX/NOPB

  • 厂商:

    BURR-BROWN(德州仪器)

  • 封装:

    VSSOP8

  • 描述:

    LMV358-N-Q1 AUTOMOTIVE DUAL, LOW

  • 数据手册
  • 价格&库存
LMV358Q1MMX/NOPB 数据手册
LMV321-N, LMV321-N-Q1, LMV358-N LMV321-N, LMV321-N-Q1, LMV358-N LMV358-N-Q1, LMV324-N, LMV324-N-Q1 LMV358-N-Q1, LMV324-N-Q1 SNOS012K – AUGUSTLMV324-N, 2000 – REVISED AUGUST 2020 www.ti.com SNOS012K – AUGUST 2000 – REVISED AUGUST 2020 LMV3xx-N/-Q1 Single, Dual, and Quad General Purpose, Low-Voltage, Rail-to-Rail Output Operational Amplifiers 1 Features • • • • • • • • • • • • 3 Description V+ V− For = 5 V and = 0 V, unless otherwise specified LMV321-N, LMV358-N, and LMV324-N are available in automotive AEC-Q100 grade 1 and grade 3 versions Ensured 2.7-V and 5-V performance No crossover distortion Industrial temperature range −40°C to +125°C Gain-bandwidth product 1 MHz Low supply current LMV321-N 130 μA LMV358-N 210 μA LMV324-N 410 μA Rail-to-rail output swing at 10 kΩ V+− 10 mV and V−+ 65 mV VCM range −0.2 V to V+− 0.8 V The LMV358-N and LMV324-N are low-voltage (2.7 V to 5.5 V) versions of the dual and quad commodity op amps LM358 and LM324 (5 V to 30 V). The LMV321N is the single channel version. The LMV321-N, LMV358-N, and LMV324-N are the most costeffective solutions for applications where low-voltage operation, space efficiency, and low price are important. They offer specifications that meet or exceed the familiar LM358 and LM324. The LMV321N, LMV358-N, and LMV324-N have rail-to-rail output swing capability and the input common-mode voltage range includes ground. They all exhibit excellent speed to power ratio, achieving 1 MHz of bandwidth and 1-V/µs slew rate with low supply current. Device Information PART NUMBER (1) 2 Applications LMV321-N • • • LMV321-N-Q1 Active filters General purpose low voltage applications General purpose portable devices LMV324-N LMV324-N-Q1 LMV358-N LMV358-N-Q1 (1) Gain and Phase vs Capacitive Load PACKAGE BODY SIZE (NOM) SOT-23 (5) 2.90 mm × 1.60 mm SC70 (5) 2.00 mm × 1.25 mm SOT-23 (5) 2.90 mm × 1.60 mm SOIC (14) 8.65 mm × 3.91 mm TSSOP (14) 5.00 mm × 4.40 mm SOIC (14) 8.65 mm × 3.91 mm TSSOP (14) 5.00 mm × 4.40 mm SOIC (8) 4.90 mm × 3.91 mm VSSOP (8) 3.00 mm × 3.00 mm SOIC (8) 4.90 mm × 3.91 mm VSSOP (8) 3.00 mm × 3.00 mm For all available packages, see the orderable addendum at the end of the data sheet. Output Voltage Swing vs Supply Voltage An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, Submit Document Feedback Copyright © 2020 Texas Instruments Incorporated intellectual property matters and other important disclaimers. PRODUCTION DATA. Product Folder Links: LMV321-N LMV321-N-Q1 LMV358-N LMV358-N-Q1 LMV324-N LMV324-N-Q1 1 LMV321-N, LMV321-N-Q1, LMV358-N LMV358-N-Q1, LMV324-N, LMV324-N-Q1 www.ti.com SNOS012K – AUGUST 2000 – REVISED AUGUST 2020 Table of Contents 1 Features............................................................................1 2 Applications..................................................................... 1 3 Description.......................................................................1 4 Revision History.............................................................. 2 5 Description (Continued)..................................................3 6 Pin Configuration and Functions...................................3 .......................................................................................... 4 7 Specifications.................................................................. 5 7.1 Absolute Maximum Ratings........................................ 5 7.2 ESD Ratings - Commercial......................................... 5 7.3 ESD Ratings - Automotive.......................................... 5 7.4 Recommended Operating Conditions.........................5 7.5 Thermal Information - Commercial............................. 6 7.6 Thermal Information - Automotive...............................6 7.7 2.7-V DC Electrical Characteristics.............................6 7.8 2.7-V AC Electrical Characteristics............................. 6 7.9 5-V DC Electrical Characteristics................................7 7.10 5-V AC Electrical Characteristics.............................. 8 7.11 Typical Characteristics.............................................. 9 8 Detailed Description......................................................17 8.1 Overview................................................................... 17 8.2 Functional Block Diagram......................................... 18 8.3 Feature Description...................................................18 8.4 Device Functional Modes..........................................20 9 Application and Implementation.................................. 21 9.1 Application Information............................................. 21 9.2 Typical Applications.................................................. 21 10 Power Supply Recommendations..............................34 11 Layout........................................................................... 34 11.1 Layout Guidelines................................................... 34 11.2 Layout Example...................................................... 35 12 Device and Documentation Support..........................36 12.1 Related Links.......................................................... 36 12.2 Receiving Notification of Documentation Updates..36 12.3 Support Resources................................................. 36 12.4 Trademarks............................................................. 36 12.5 Electrostatic Discharge Caution..............................36 12.6 Glossary..................................................................36 13 Mechanical, Packaging, and Orderable Information.................................................................... 36 4 Revision History NOTE: Page numbers for previous revisions may differ from page numbers in the current version. Changes from Revision J (October 2014) to Revision K (August 2020) Page • Updated the numbering format for tables, figures, and cross-references throughout the document..................1 • Added application links to Applications section.................................................................................................. 1 • Added Thermal Information table for commercial LMV3xx-N and information is updated..................................6 • Added Thermal Information table for automotive LMV3xx-N-Q1........................................................................6 • Changed Io, output short circuit current for LMV3xx-N in 5V DC Electrical Characteristics section.................. 7 • Added open-loop output impedance vs frequency figure for LMV3xx-N in Typical Characteristics section....... 9 • Added output voltage vs output current figure for LMV3xx-N in Typical Characteristics section........................ 9 Changes from Revision I (February 2013) to Revision J (October 2014) Page • Added Pin Configuration and Functions section, ESD Ratings table, Feature Description section, Device Functional Modes, Application and Implementation section, Power Supply Recommendations section, Layout section, Device and Documentation Support section, and Mechanical, Packaging, and Orderable Information section ............................................................................................................................................................... 1 Changes from Revision H (February 2013) to Revision I (February 2013) Page • Changed layout of National Semiconductor Data Sheet to TI format............................................................... 33 2 Submit Document Feedback Copyright © 2020 Texas Instruments Incorporated Product Folder Links: LMV321-N LMV321-N-Q1 LMV358-N LMV358-N-Q1 LMV324-N LMV324-N-Q1 LMV321-N, LMV321-N-Q1, LMV358-N LMV358-N-Q1, LMV324-N, LMV324-N-Q1 www.ti.com SNOS012K – AUGUST 2000 – REVISED AUGUST 2020 5 Description (Continued) The LMV321-N is available in the space saving 5-Pin SC70, which is approximately half the size of the 5-Pin SOT23. The small package saves space on PC boards and enables the design of small portable electronic devices. It also allows the designer to place the device closer to the signal source to reduce noise pickup and increase signal integrity. The chips are built with Texas Instruments's advanced submicron silicon-gate BiCMOS process. The LMV321-N/ LMV358-N/LMV324-N have bipolar input and output stages for improved noise performance and higher output current drive. 6 Pin Configuration and Functions Figure 6-1. DBV and DCK Package 5-Pin SC70, SOT-23 Top View Figure 6-2. D and DGK Package 8-Pin SOIC, VSSOP Top View Figure 6-3. D and PW Package 14-Pin SOIC, TSSOP Top View Copyright © 2020 Texas Instruments Incorporated Submit Document Feedback Product Folder Links: LMV321-N LMV321-N-Q1 LMV358-N LMV358-N-Q1 LMV324-N LMV324-N-Q1 3 LMV321-N, LMV321-N-Q1, LMV358-N LMV358-N-Q1, LMV324-N, LMV324-N-Q1 www.ti.com SNOS012K – AUGUST 2000 – REVISED AUGUST 2020 Pin Functions PIN NAME LMV358-N, LMV358-N-Q1, LMV358-N-Q3 D, DGK LMV324-N, LMV324-N-Q1, LMV324-N-Q3 D, PW TYPE(1) DESCRIPTION +IN 1 — — I Noninverting input IN A+ — 3 3 I Noninverting input, channel A IN B+ — 5 5 I Noninverting input, channel B IN C+ — — 10 I Noninverting input, channel C IN D+ — — 12 I Noninverting input, channel D –IN 3 — — I Inverting input IN A– — 2 2 I Inverting input, channel A IN B– — 6 6 I Inverting input, channel B IN C– — — 9 I Inverting input, channel C IN D– — — 13 I Inverting input, channel D OUTPUT 4 — — O Output OUT A — 1 1 O Output, channel A OUT B — 7 7 O Output, channel B OUT C — — 8 O Output, channel C OUT D — — 14 O Output, channel D V+ 5 8 4 P Positive (highest) power supply V– 2 4 11 P Negative (lowest) power supply (1) 4 LMV321-N, LMV321-N-Q1, LMV321-N-Q3 DVB, DCK Signal Types: I = Input, O = Output, I/O = Input or Output, P = Power. Submit Document Feedback Copyright © 2020 Texas Instruments Incorporated Product Folder Links: LMV321-N LMV321-N-Q1 LMV358-N LMV358-N-Q1 LMV324-N LMV324-N-Q1 LMV321-N, LMV321-N-Q1, LMV358-N LMV358-N-Q1, LMV324-N, LMV324-N-Q1 www.ti.com SNOS012K – AUGUST 2000 – REVISED AUGUST 2020 7 Specifications 7.1 Absolute Maximum Ratings See (1) (9). MIN Differential Input Voltage MAX UNIT ±Supply Voltage Input Voltage −0.3 V +Supply Voltage V 5.5 V Soldering Information:  Infrared or Convection (30 sec) 260 °C Junction Temperature(4) 150 °C 150 °C Supply Voltage (V+–V −) + (2) Output Short Circuit to V − (3) Output Short Circuit to V Storage temperature Tstg −65 7.2 ESD Ratings - Commercial VALUE UNIT LMV358-N, and LMV324-N in all packages V(ESD) Electrostatic discharge Human-body model (HBM), per ANSI/ESDA/JEDEC JS-001(1) ±2000 Machine model ±100 Human-body model (HBM), per ANSI/ESDA/JEDEC JS-001(1) ±900 Machine model ±100 V LMV321-N in all packages V(ESD) (1) Electrostatic discharge V JEDEC document JEP155 states that 500-V HBM allows safe manufacturing with a standard ESD control process. 7.3 ESD Ratings - Automotive VALUE UNIT LMV358-N-Q1, LMV324-N-Q1, LMV358-N-Q3 and LMV324-N-Q3 in all packages V(ESD) Electrostatic discharge Human-body model (HBM), per AEC Q100-002(1) ±2000 Machine model ±100 V LM321-N-Q1 and LM321-N-Q3 in all packages V(ESD) (1) Electrostatic discharge Human-body model (HBM), per AEC Q100-002(1) ±900 Machine model ±100 V AEC Q100-002 indicates that HBM stressing shall be in accordance with the ANSI/ESDA/JEDEC JS-001 specification. 7.4 Recommended Operating Conditions Supply Voltage Temperature Range (4): LMV321-N, LMV358-N, LMV324-N MIN MAX 2.7 5.5 V UNIT –40 125 °C Temperature Range (4): LMV321-N-Q1, LMV358-N-Q1, LMV324-N-Q1 –40 125 °C Temperature Range (4): LMV321-N-Q3, LMV358-N-Q3, LMV324-N-Q3 –40 85 °C Copyright © 2020 Texas Instruments Incorporated Submit Document Feedback Product Folder Links: LMV321-N LMV321-N-Q1 LMV358-N LMV358-N-Q1 LMV324-N LMV324-N-Q1 5 LMV321-N, LMV321-N-Q1, LMV358-N LMV358-N-Q1, LMV324-N, LMV324-N-Q1 www.ti.com SNOS012K – AUGUST 2000 – REVISED AUGUST 2020 7.5 Thermal Information - Commercial LMV321-N THERMAL METRIC(1) DBV LMV324-N DCK D 478 145 5 PINS R θJA (1) Junction-to-ambient thermal resistance 265 LMV358-N PW D DGK 155 207.9 14 PINS UNIT 8 PINS 235 °C/W For more information about traditional and new thermal metrics, see the IC Package Thermal Metrics application report, SPRA953. 7.6 Thermal Information - Automotive THERMAL METRIC(1) LMV321-N-Q1, LMV321-N-Q3 DBV LMV324-N-Q1, LMV324-N-Q3 LMV358-N-Q1, LMV358-N-Q3 D D 5 PINS RθJA (1) Junction-to-ambient thermal resistance 265 PW DGK 14 PINS 145 UNIT 8 PINS 155 190 235 °C/W For more information about traditional and new thermal metrics, see the IC Package Thermal Metrics application report, SPRA953. 7.7 2.7-V DC Electrical Characteristics Unless otherwise specified, all limits specified for TJ = 25°C, V+ = 2.7 V, V− = 0 V, VCM = 1.0 V, VO = V+/2 and RL > 1 MΩ. TEST CONDITIONS VOS MIN(6) TYP(5) MAX(6) 1.7 7 Input Offset Voltage TCVOS Input Offset Voltage Average Drift IB Input Bias Current IOS Input Offset Current CMRR Common Mode Rejection Ratio 5 nA 5 50 nA dB V+ 50 60 dB 0 −0.2 VCM Input Common-Mode Voltage Range For CMRR ≥ 50 dB Supply Current 250 63 2.7 V ≤ VO = 1V IS µV/°C 11 50 Power Supply Rejection Ratio Output Swing mV 0 V ≤ VCM ≤ 1.7 V PSRR VO UNIT ≤5V V 1.9 RL = 10 kΩ to 1.35 V V+ −100 Single V+ 1.7 −10 V mV 60 180 mV µA 80 170 Dual Both amplifiers 140 340 Quad All four amplifiers 260 680 µA µA 7.8 2.7-V AC Electrical Characteristics Unless otherwise specified, all limits specified for T J = 25°C, V+ = 2.7 V, V− = 0 V, VCM = 1.0 V, VO = V+/2 and RL > 1 MΩ. TEST CONDITIONS GBWP 6 Gain-Bandwidth Product CL = 200 pF MIN(6) TYP(5) MAX(6) UNIT 1 MHz Φm Phase Margin 60 Deg Gm Gain Margin 10 dB en Input-Referred Voltage Noise f = 1 kHz 46 in Input-Referred Current Noise f = 1 kHz 0.17 Submit Document Feedback Copyright © 2020 Texas Instruments Incorporated Product Folder Links: LMV321-N LMV321-N-Q1 LMV358-N LMV358-N-Q1 LMV324-N LMV324-N-Q1 LMV321-N, LMV321-N-Q1, LMV358-N LMV358-N-Q1, LMV324-N, LMV324-N-Q1 www.ti.com SNOS012K – AUGUST 2000 – REVISED AUGUST 2020 7.9 5-V DC Electrical Characteristics Unless otherwise specified, all limits specified for T J = 25°C, V+ = 5 V, V− = 0 V, VCM = 2.0 V, VO = V+/2 and R L > 1 MΩ. MIN(6) TEST CONDITIONS VOS Input Offset Voltage TYP(5) MAX(6) 1.7 7 Over Temperature TCVOS Input Offset Voltage Average Drift IB Input Bias Current 9 5 15 Over Temperature IOS 5 Over Temperature CMRR Common Mode Rejection Ratio 50 150 0 V ≤ VCM ≤ 4 V mV µV/°C 250 500 Input Offset Current UNIT nA nA 50 65 dB V+ PSRR Power Supply Rejection Ratio 2.7 V ≤ ≤5V VO = 1V, VCM = 1 V 50 60 dB VCM Input Common-Mode Voltage Range For CMRR ≥ 50 dB 0 −0.2 V AV Large Signal Voltage Gain (7) RL = 2 kΩ 15 100 RL = 2 kΩ, Over Temperature 10 VO Output Swing 4.2 RL = 2 kΩ to 2.5 V V+ − 300 RL = 2 kΩ to 2.5 V, Over Temperature V+ 120 V+ − 100 RL = 10 kΩ to 2.5 V, Over Temperature V+ − 200 RL = 2 kΩ to 2.5 V V+ − 10 65 RL = 2 kΩ to 2.5 V, 125°C Sinking, VO = 5 V, LMV3xx-N Sourcing, VO = 0 V Sinking, VO = 5 V IS Supply Current Single 40 10 40 5 60 10 mA 250 350 210 440 615 410 Quad (all four amps), Over Temperature Copyright © 2020 Texas Instruments Incorporated 180 160 130 Dual (both amps), Over Temperature Quad (all four amps) mV 280 5 Single, Over Temperature Dual (both amps) 300 400 RL = 10 kΩ to 2.5 V Sourcing, VO = 0 V, LMV3xx-N V/mV V+ −40 RL = 2 kΩ to 2.5 V, Over Temperature Output Short Circuit Current V − 400 RL = 2 kΩ to 2.5 V IO 4 µA 830 1160 Submit Document Feedback Product Folder Links: LMV321-N LMV321-N-Q1 LMV358-N LMV358-N-Q1 LMV324-N LMV324-N-Q1 7 LMV321-N, LMV321-N-Q1, LMV358-N LMV358-N-Q1, LMV324-N, LMV324-N-Q1 www.ti.com SNOS012K – AUGUST 2000 – REVISED AUGUST 2020 7.10 5-V AC Electrical Characteristics Unless otherwise specified, all limits specified for TJ = 25°C, V+ = 5 V, V− = 0 V, VCM = 2.0 V, VO = V+/2 and R L > 1 MΩ. TEST CONDITIONS SR Slew Rate GBWP Gain-Bandwidth Product CL = 200 pF TYP(5) MAX(6) UNIT 1 V/µs 1 MHz Φm Phase Margin 60 Deg Gm Gain Margin 10 dB en Input-Referred Voltage Noise f = 1 kHz 39 in Input-Referred Current Noise f = 1 kHz 0.21 (1) (2) (3) (4) (5) (6) (7) (8) (9) 8 (8) MIN(6) Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Section 7.4 indicate conditions for which the device is intended to be functional, but specific performance is not ensured. For ensured specifications and the test conditions, see the Electrical Characteristics. Shorting output to V+ will adversely affect reliability. Shorting output to V- will adversely affect reliability. The maximum power dissipation is a function of TJ(MAX), RθJA. The maximum allowable power dissipation at any ambient temperature is PD = (TJ(MAX) – TA)/ RθJA. All numbers apply for packages soldered directly onto a PC Board. Typical values represent the most likely parametric norm as determined at the time of characterization. Actual typical values may vary over time and will also depend on the application and configuration. The typical values are not tested and are not ensured on shipped production material. All limits are ensured by testing or statistical analysis. RL is connected to V-. The output voltage is 0.5 V ≤ VO ≤ 4.5 V. Connected as voltage follower with 3-V step input. Number specified is the slower of the positive and negative slew rates. If Military/Aerospace specified devices are required, please contact the Texas Instruments Sales Office / Distributors for availability and specifications. Submit Document Feedback Copyright © 2020 Texas Instruments Incorporated Product Folder Links: LMV321-N LMV321-N-Q1 LMV358-N LMV358-N-Q1 LMV324-N LMV324-N-Q1 LMV321-N, LMV321-N-Q1, LMV358-N LMV358-N-Q1, LMV324-N, LMV324-N-Q1 www.ti.com SNOS012K – AUGUST 2000 – REVISED AUGUST 2020 7.11 Typical Characteristics Unless otherwise specified, VS = 5 V, single supply, TA = 25°C. Figure 7-1. Supply Current vs Supply Voltage (LMV321-N) Figure 7-2. Input Current vs Temperature Figure 7-3. Sourcing Current vs Output Voltage Figure 7-4. Sourcing Current vs Output Voltage Figure 7-5. Sinking Current vs Output Voltage Figure 7-6. Sinking Current vs Output Voltage Copyright © 2020 Texas Instruments Incorporated Submit Document Feedback Product Folder Links: LMV321-N LMV321-N-Q1 LMV358-N LMV358-N-Q1 LMV324-N LMV324-N-Q1 9 LMV321-N, LMV321-N-Q1, LMV358-N LMV358-N-Q1, LMV324-N, LMV324-N-Q1 www.ti.com SNOS012K – AUGUST 2000 – REVISED AUGUST 2020 10 Figure 7-7. Output Voltage Swing vs Supply Voltage Figure 7-8. Input Voltage Noise vs Frequency Figure 7-9. Input Current Noise vs Frequency Figure 7-10. Input Current Noise vs Frequency Figure 7-11. Crosstalk Rejection vs Frequency Figure 7-12. PSRR vs Frequency Submit Document Feedback Copyright © 2020 Texas Instruments Incorporated Product Folder Links: LMV321-N LMV321-N-Q1 LMV358-N LMV358-N-Q1 LMV324-N LMV324-N-Q1 LMV321-N, LMV321-N-Q1, LMV358-N LMV358-N-Q1, LMV324-N, LMV324-N-Q1 www.ti.com SNOS012K – AUGUST 2000 – REVISED AUGUST 2020 Figure 7-13. CMRR vs Frequency Figure 7-14. CMRR vs Input Common Mode Voltage Figure 7-15. CMRR vs Input Common Mode Voltage Figure 7-16. ΔVOS vs CMR Figure 7-17. ΔV OS vs CMR Figure 7-18. Input Voltage vs Output Voltage Copyright © 2020 Texas Instruments Incorporated Submit Document Feedback Product Folder Links: LMV321-N LMV321-N-Q1 LMV358-N LMV358-N-Q1 LMV324-N LMV324-N-Q1 11 LMV321-N, LMV321-N-Q1, LMV358-N LMV358-N-Q1, LMV324-N, LMV324-N-Q1 www.ti.com SNOS012K – AUGUST 2000 – REVISED AUGUST 2020 12 Figure 7-19. Input Voltage vs Output Voltage Figure 7-20. Open Loop Frequency Response Figure 7-21. Open Loop Frequency Response Figure 7-22. Open Loop Frequency Response vs Temperature Figure 7-23. Gain and Phase vs Capacitive Load Figure 7-24. Gain and Phase vs Capacitive Load Submit Document Feedback Copyright © 2020 Texas Instruments Incorporated Product Folder Links: LMV321-N LMV321-N-Q1 LMV358-N LMV358-N-Q1 LMV324-N LMV324-N-Q1 LMV321-N, LMV321-N-Q1, LMV358-N LMV358-N-Q1, LMV324-N, LMV324-N-Q1 www.ti.com SNOS012K – AUGUST 2000 – REVISED AUGUST 2020 Figure 7-25. Slew Rate vs Supply Voltage Figure 7-26. Non-Inverting Large Signal Pulse Response Figure 7-27. Non-Inverting Large Signal Pulse Response Figure 7-28. Non-Inverting Large Signal Pulse Response Figure 7-29. Non-Inverting Small Signal Pulse Response Figure 7-30. Non-Inverting Small Signal Pulse Response Copyright © 2020 Texas Instruments Incorporated Submit Document Feedback Product Folder Links: LMV321-N LMV321-N-Q1 LMV358-N LMV358-N-Q1 LMV324-N LMV324-N-Q1 13 LMV321-N, LMV321-N-Q1, LMV358-N LMV358-N-Q1, LMV324-N, LMV324-N-Q1 www.ti.com SNOS012K – AUGUST 2000 – REVISED AUGUST 2020 14 Figure 7-31. Non-Inverting Small Signal Pulse Response Figure 7-32. Inverting Large Signal Pulse Response Figure 7-33. Inverting Large Signal Pulse Response Figure 7-34. Inverting Large Signal Pulse Response Figure 7-35. Inverting Small Signal Pulse Response Figure 7-36. Inverting Small Signal Pulse Response Submit Document Feedback Copyright © 2020 Texas Instruments Incorporated Product Folder Links: LMV321-N LMV321-N-Q1 LMV358-N LMV358-N-Q1 LMV324-N LMV324-N-Q1 LMV321-N, LMV321-N-Q1, LMV358-N LMV358-N-Q1, LMV324-N, LMV324-N-Q1 www.ti.com SNOS012K – AUGUST 2000 – REVISED AUGUST 2020 Figure 7-37. Inverting Small Signal Pulse Response Figure 7-38. Stability vs Capacitive Load Figure 7-39. Stability vs Capacitive Load Figure 7-40. Stability vs Capacitive Load Figure 7-41. Stability vs Capacitive Load Figure 7-42. THD vs Frequency Copyright © 2020 Texas Instruments Incorporated Submit Document Feedback Product Folder Links: LMV321-N LMV321-N-Q1 LMV358-N LMV358-N-Q1 LMV324-N LMV324-N-Q1 15 LMV321-N, LMV321-N-Q1, LMV358-N LMV358-N-Q1, LMV324-N, LMV324-N-Q1 www.ti.com SNOS012K – AUGUST 2000 – REVISED AUGUST 2020 Open-Loop Output Impedance (:) 2000 1800 1600 1400 1200 1000 800 600 400 200 0 1k 10k 100k Frequency (Hz) 1M 10M D023 Figure 7-43. Open Loop Output Impedance vs Frequency Figure 7-44. Open Loop Output Impedance vs Frequency (LM3xx-N) Figure 7-45. Short Circuit Current vs Temperature (Sinking) Figure 7-46. Short Circuit Current vs Temperature (Sourcing) 3 2.5 2 Output Voltage (V) 1.5 125°C 1 85°C 25°C -40°C 0.5 0 -0.5 -1 85°C -1.5 25°C -40°C 125°C -2 -2.5 -3 0 5 10 15 20 25 30 35 Output Current (mA) 40 45 50 D012 Figure 7-47. Output Voltage vs Output Current (LMV3xx-N) 16 Submit Document Feedback Copyright © 2020 Texas Instruments Incorporated Product Folder Links: LMV321-N LMV321-N-Q1 LMV358-N LMV358-N-Q1 LMV324-N LMV324-N-Q1 LMV321-N, LMV321-N-Q1, LMV358-N LMV358-N-Q1, LMV324-N, LMV324-N-Q1 www.ti.com SNOS012K – AUGUST 2000 – REVISED AUGUST 2020 8 Detailed Description 8.1 Overview The LMV358-N/LMV324-N are low voltage (2.7 V to 5.5 V) versions of the dual and quad commodity op amps LM358/LM324 (5 V to 30 V). The LMV321-N is the single channel version. The LMV321-N/LMV358-N/LMV324N are the most cost effective solutions for applications where low voltage operation, space efficiency, and low price are important. They offer specifications that meet or exceed the familiar LM358/LM324. The LMV321-N/ LMV358-N/LMV324-N have rail-to-rail output swing capability and the input common-mode voltage range includes ground. They all exhibit excellent speed to power ratio, achieving 1 MHz of bandwidth and 1-V/µs slew rate with low supply current. 8.1.1 Benefits of the LMV321-N/LMV358-N/LMV324-N 8.1.1.1 Size The small footprints of the LMV321-N/LMV358-N/LMV324-N packages save space on printed circuit boards, and enable the design of smaller electronic products, such as cellular phones, pagers, or other portable systems. The low profile of the LMV321-N/LMV358-N/LMV324-N make them possible to use in PCMCIA type III cards. 8.1.1.2 Signal Integrity Signals can pick up noise between the signal source and the amplifier. By using a physically smaller amplifier package, the LMV321-N/LMV358-N/LMV324-N can be placed closer to the signal source, reducing noise pickup and increasing signal integrity. 8.1.1.3 Simplified Board Layout These products help you to avoid using long PC traces in your PC board layout. This means that no additional components, such as capacitors and resistors, are needed to filter out the unwanted signals due to the interference between the long PC traces. 8.1.1.4 Low Supply Current These devices will help you to maximize battery life. They are ideal for battery powered systems. 8.1.1.5 Low Supply Voltage Texas Instruments provides ensured performance at 2.7 V and 5 V. These specifications ensure operation throughout the battery lifetime. 8.1.1.6 Rail-to-Rail Output Rail-to-rail output swing provides maximum possible dynamic range at the output. This is particularly important when operating on low supply voltages. 8.1.1.7 Input Includes Ground Allows direct sensing near GND in single supply operation. Protection should be provided to prevent the input voltages from going negative more than −0.3 V (at 25°C). An input clamp diode with a resistor to the IC input terminal can be used. 8.1.1.8 Ease of Use and Crossover Distortion The LMV321-N/LMV358-N/LMV324-N offer specifications similar to the familiar LM324-N. In addition, the new LMV321-N/LMV358-N/LMV324-N effectively eliminate the output crossover distortion. The scope photos in Figure 8-1 and Figure 8-2 compare the output swing of the LMV324-N and the LM324-N in a voltage follower configuration, with VS = ± 2.5 V and RL (= 2 kΩ) connected to GND. It is apparent that the crossover distortion has been eliminated in the new LMV324-N. Copyright © 2020 Texas Instruments Incorporated Submit Document Feedback Product Folder Links: LMV321-N LMV321-N-Q1 LMV358-N LMV358-N-Q1 LMV324-N LMV324-N-Q1 17 LMV321-N, LMV321-N-Q1, LMV358-N LMV358-N-Q1, LMV324-N, LMV324-N-Q1 www.ti.com SNOS012K – AUGUST 2000 – REVISED AUGUST 2020 Figure 8-2. Output Swing of LM324 Figure 8-1. Output Swing of LMV324 8.2 Functional Block Diagram V IN – IN + + _ OUT + V – Copyright © 2016, Texas Instruments Incorporated Each Amplifier 8.3 Feature Description 8.3.1 Capacitive Load Tolerance The LMV321-N/LMV358-N/LMV324-N can directly drive 200 pF in unity-gain without oscillation. The unity-gain follower is the most sensitive configuration to capacitive loading. Direct capacitive loading reduces the phase margin of amplifiers. The combination of the amplifier's output impedance and the capacitive load induces phase lag. This results in either an underdamped pulse response or oscillation. To drive a heavier capacitive load, the circuit in Figure 8-3 can be used. Figure 8-3. Indirectly Driving a Capacitive Load Using Resistive Isolation In Figure 8-3, the isolation resistor RISO and the load capacitor CL form a pole to increase stability by adding more phase margin to the overall system. The desired performance depends on the value of RISO. The bigger the RISO resistor value, the more stable VOUT will be. Figure 8-4 is an output waveform of Figure 8-3 using 620 Ω for RISO and 510 pF for CL.. 18 Submit Document Feedback Copyright © 2020 Texas Instruments Incorporated Product Folder Links: LMV321-N LMV321-N-Q1 LMV358-N LMV358-N-Q1 LMV324-N LMV324-N-Q1 LMV321-N, LMV321-N-Q1, LMV358-N LMV358-N-Q1, LMV324-N, LMV324-N-Q1 www.ti.com SNOS012K – AUGUST 2000 – REVISED AUGUST 2020 Figure 8-4. Pulse Response of the LMV324 Circuit in Figure 8-3 The circuit in Figure 8-5 is an improvement to the one in Figure 8-3 because it provides DC accuracy as well as AC stability. If there were a load resistor in Figure 8-3, the output would be voltage divided by RISO and the load resistor. Instead, in Figure 8-5, RF provides the DC accuracy by using feed-forward techniques to connect VIN to RL. Caution is needed in choosing the value of RF due to the input bias current of the LMV321-N/LMV358-N/ LMV324-N. CF and RISO serve to counteract the loss of phase margin by feeding the high frequency component of the output signal back to the amplifier's inverting input, thereby preserving phase margin in the overall feedback loop. Increased capacitive drive is possible by increasing the value of CF. This in turn will slow down the pulse response. Figure 8-5. Indirectly Driving A Capacitive Load With DC Accuracy 8.3.2 Input Bias Current Cancellation The LMV321-N/LMV358-N/LMV324-N family has a bipolar input stage. The typical input bias current of LMV321N/LMV358-N/LMV324-N is 15 nA with 5V supply. Thus a 100 kΩ input resistor will cause 1.5 mV of error voltage. By balancing the resistor values at both inverting and non-inverting inputs, the error caused by the amplifier's input bias current will be reduced. The circuit in Figure 8-6 shows how to cancel the error caused by input bias current. Figure 8-6. Cancelling the Error Caused by Input Bias Current Copyright © 2020 Texas Instruments Incorporated Submit Document Feedback Product Folder Links: LMV321-N LMV321-N-Q1 LMV358-N LMV358-N-Q1 LMV324-N LMV324-N-Q1 19 LMV321-N, LMV321-N-Q1, LMV358-N LMV358-N-Q1, LMV324-N, LMV324-N-Q1 www.ti.com SNOS012K – AUGUST 2000 – REVISED AUGUST 2020 8.4 Device Functional Modes The LMV321-N/LMV321-N-Q1/LMV358-N/LMV358-N-Q1/LMV324-N/LMV324-N-Q1 are powered on when the supply is connected. They can be operated as a single supply or a dual supply operational amplifier depending on the application. 20 Submit Document Feedback Copyright © 2020 Texas Instruments Incorporated Product Folder Links: LMV321-N LMV321-N-Q1 LMV358-N LMV358-N-Q1 LMV324-N LMV324-N-Q1 LMV321-N, LMV321-N-Q1, LMV358-N LMV358-N-Q1, LMV324-N, LMV324-N-Q1 www.ti.com SNOS012K – AUGUST 2000 – REVISED AUGUST 2020 9 Application and Implementation Note Information in the following applications sections is not part of the TI component specification, and TI does not warrant its accuracy or completeness. TI’s customers are responsible for determining suitability of components for their purposes. Customers should validate and test their design implementation to confirm system functionality. 9.1 Application Information The LMV32x-N family of amplifiers is specified for operation from 2.7 V to 5 V (±1.35 V to ±2.5 V). Many of the specifications apply from –40°C to 125°C. They provide ground-sensing inputs as well as rail-to-rail output swing. Parameters that can exhibit significant variance with regard to operating voltage or temperature are presented in the Typical Characteristics section. 9.2 Typical Applications 9.2.1 Simple Low-Pass Active Filter A simple active low-pass filter is shown in Figure 9-1. Figure 9-1. Simple Low-Pass Active Filter 9.2.1.1 Design Requirements The simple single pole active lowpass filter shown in Figure 9-1 will pass low frequencies and attenuate frequencies above corner frequency (fc) at a roll-off rate of 20 dB/Decade. 9.2.1.2 Detailed Design Procedure The values of R1, R2, R3, and C1 are selected using the formulas in Figure 9-2. The low-frequency gain (ω → 0) is defined by −R3/R1. This allows low-frequency gains other than unity to be obtained. The filter has a −20 dB/ decade roll-off after its corner frequency fc. R2 should be chosen equal to the parallel combination of R1 and R3 to minimize errors due to bias current. The frequency response of the filter is shown in Figure 9-3. Figure 9-2. Simple Low-Pass Active Filter Equations Copyright © 2020 Texas Instruments Incorporated Submit Document Feedback Product Folder Links: LMV321-N LMV321-N-Q1 LMV358-N LMV358-N-Q1 LMV324-N LMV324-N-Q1 21 LMV321-N, LMV321-N-Q1, LMV358-N LMV358-N-Q1, LMV324-N, LMV324-N-Q1 www.ti.com SNOS012K – AUGUST 2000 – REVISED AUGUST 2020 9.2.1.3 Application Curves Figure 9-3. Frequency Response of Simple Low-Pass Active Filter Note that the single-op-amp active filters are used in the applications that require low quality factor, Q (≤ 10), low frequency (≤ 5 kHz), and low gain (≤ 10), or a small value for the product of gain times Q (≤ 100). The op amp should have an open loop voltage gain at the highest frequency of interest at least 50 times larger than the gain of the filter at this frequency. In addition, the selected op amp should have a slew rate that meets the following requirement: Slew Rate ≥ 0.5 × (ω HVOPP) × 10−6 V/µsec (1) where ωH is the highest frequency of interest, and VOPP is the output peak-to-peak voltage. 9.2.2 Difference Amplifier The difference amplifier allows the subtraction of two voltages or, as a special case, the cancellation of a signal common to two inputs. It is useful as a computational amplifier, in making a differential to single-ended conversion or in rejecting a common mode signal. Figure 9-4. Difference Amplifier 9.2.3 Instrumentation Circuits The input impedance of the previous difference amplifier is set by the resistors R1, R2, R3, and R4. To eliminate the problems of low input impedance, one way is to use a voltage follower ahead of each input as shown in the following two instrumentation amplifiers. 9.2.3.1 Three-Op-Amp Instrumentation Amplifier The quad LMV324 can be used to build a three-op-amp instrumentation amplifier as shown in Figure 9-5. 22 Submit Document Feedback Copyright © 2020 Texas Instruments Incorporated Product Folder Links: LMV321-N LMV321-N-Q1 LMV358-N LMV358-N-Q1 LMV324-N LMV324-N-Q1 LMV321-N, LMV321-N-Q1, LMV358-N LMV358-N-Q1, LMV324-N, LMV324-N-Q1 www.ti.com SNOS012K – AUGUST 2000 – REVISED AUGUST 2020 Figure 9-5. Three-Op-Amp Instrumentation Amplifier The first stage of this instrumentation amplifier is a differential-input, differential-output amplifier, with two voltage followers. These two voltage followers assure that the input impedance is over 100 MΩ. The gain of this instrumentation amplifier is set by the ratio of R2/R1. R3 should equal R1, and R4 should equal R2. Matching of R3 to R1, and R4 to R2 affects the CMRR. For good CMRR over temperature, low drift resistors should be used. Making R4 slightly smaller than R2 and adding a trim pot equal to twice the difference between R2 and R4 will allow the CMRR to be adjusted for optimum performance. 9.2.3.2 Two-Op-Amp Instrumentation Amplifier A two-op-amp instrumentation amplifier can also be used to make a high-input-impedance DC differential amplifier (Figure 9-6). As in the three-op-amp circuit, this instrumentation amplifier requires precise resistor matching for good CMRR. R4 should equal R1, and R3 should equal R2. Figure 9-6. Two-Op-Amp Instrumentation Amplifier 9.2.3.3 Single-Supply Inverting Amplifier There may be cases where the input signal going into the amplifier is negative. Because the amplifier is operating in single supply voltage, a voltage divider using R3 and R4 is implemented to bias the amplifier so the input signal is within the input common-mode voltage range of the amplifier. The capacitor C1 is placed between the inverting input and resistor R1 to block the DC signal going into the AC signal source, VIN. The values of R1 and C1 affect the cutoff frequency, fc = 1 / 2πR1C1. As a result, the output signal is centered around mid-supply (if the voltage divider provides V+ / 2 at the noninverting input). The output can swing to both rails, maximizing the signal-to-noise ratio in a low voltage system. Copyright © 2020 Texas Instruments Incorporated Submit Document Feedback Product Folder Links: LMV321-N LMV321-N-Q1 LMV358-N LMV358-N-Q1 LMV324-N LMV324-N-Q1 23 LMV321-N, LMV321-N-Q1, LMV358-N LMV358-N-Q1, LMV324-N, LMV324-N-Q1 www.ti.com SNOS012K – AUGUST 2000 – REVISED AUGUST 2020 Figure 9-7. Single-Supply Inverting Amplifier 9.2.4 Sallen-Key 2nd-Order Active Low-Pass Filter The Sallen-Key 2nd-order active low-pass filter is illustrated in Figure 9-8. The DC gain of the filter is expressed as: (2) The transfer function is: (3) Figure 9-8. Sallen-Key 2nd-Order Active Low-Pass Filter 24 Submit Document Feedback Copyright © 2020 Texas Instruments Incorporated Product Folder Links: LMV321-N LMV321-N-Q1 LMV358-N LMV358-N-Q1 LMV324-N LMV324-N-Q1 LMV321-N, LMV321-N-Q1, LMV358-N LMV358-N-Q1, LMV324-N, LMV324-N-Q1 www.ti.com SNOS012K – AUGUST 2000 – REVISED AUGUST 2020 9.2.4.1 Detailed Design Procedure The following paragraphs explain how to select values for R1, R2, R3, R4, C1, and C 2 for given filter requirements, such as ALP, Q, and fc. The standard form for a 2nd-order low pass filter is: (4) where   Q: Pole Quality Factor   ωC: Corner Frequency A comparison between Equation 3 and Equation 4 yields: (5) (6) To reduce the required calculations in filter design, it is convenient to introduce normalization into the components and design parameters. To normalize, let ωC = ωn = 1 rad/s, and C1 = C2 = Cn = 1F, and substitute these values into Equation 5 and Equation 6. From Equation 5, we obtain: (7) From Equation 6, we obtain: (8) For minimum DC offset, V+ = V−, the resistor values at both inverting and non-inverting inputs should be equal, which means: (9) From Equation 2 and Equation 9, we obtain: (10) (11) The values of C1 and C2 are normally close to or equal to: (12) Copyright © 2020 Texas Instruments Incorporated Submit Document Feedback Product Folder Links: LMV321-N LMV321-N-Q1 LMV358-N LMV358-N-Q1 LMV324-N LMV324-N-Q1 25 LMV321-N, LMV321-N-Q1, LMV358-N LMV358-N-Q1, LMV324-N, LMV324-N-Q1 www.ti.com SNOS012K – AUGUST 2000 – REVISED AUGUST 2020 As a design example: Require: ALP = 2, Q = 1, fc = 1 kHz Start by selecting C1 and C2. Choose a standard value that is close to: (13) (14) From Equation 7, Equation 8, Equation 10, and Equation 11, R1= 1 Ω (15) R2= 1 Ω (16) R3= 4 Ω (17) R4= 4 Ω (18) The above resistor values are normalized values with ωn = 1 rad/s and C1 = C2 = Cn = 1F. To scale the normalized cutoff frequency and resistances to the real values, two scaling factors are introduced, frequency scaling factor (kf) and impedance scaling factor (km). (19) Scaled values: R2 = R1 = 15.9 kΩ (20) R3 = R4 = 63.6 kΩ (21) C1 = C2 = 0.01 µF (22) An adjustment to the scaling may be made in order to have realistic values for resistors and capacitors. The actual value used for each component is shown in the circuit. 9.2.5 2nd-Order High Pass Filter A 2nd-order high pass filter can be built by simply interchanging those frequency selective components (R1, R2, C1, C2) in the Sallen-Key 2nd-order active low pass filter. As shown in Figure 9-9, resistors become capacitors, and capacitors become resistors. The resulted high pass filter has the same corner frequency and the same maximum gain as the previous 2nd-order low pass filter if the same components are chosen. 26 Submit Document Feedback Copyright © 2020 Texas Instruments Incorporated Product Folder Links: LMV321-N LMV321-N-Q1 LMV358-N LMV358-N-Q1 LMV324-N LMV324-N-Q1 LMV321-N, LMV321-N-Q1, LMV358-N LMV358-N-Q1, LMV324-N, LMV324-N-Q1 www.ti.com SNOS012K – AUGUST 2000 – REVISED AUGUST 2020 Figure 9-9. Sallen-Key 2nd-Order Active High-Pass Filter 9.2.6 State Variable Filter A state variable filter requires three op amps. One convenient way to build state variable filters is with a quad op amp, such as the LMV324 (Figure 9-10). This circuit can simultaneously represent a low-pass filter, high-pass filter, and bandpass filter at three different outputs. The equations for these functions are listed below. It is also called "Bi-Quad" active filter as it can produce a transfer function which is quadratic in both numerator and denominator. Figure 9-10. State Variable Active Filter Copyright © 2020 Texas Instruments Incorporated Submit Document Feedback Product Folder Links: LMV321-N LMV321-N-Q1 LMV358-N LMV358-N-Q1 LMV324-N LMV324-N-Q1 27 LMV321-N, LMV321-N-Q1, LMV358-N LMV358-N-Q1, LMV324-N, LMV324-N-Q1 www.ti.com SNOS012K – AUGUST 2000 – REVISED AUGUST 2020 (23) where for all three filters, (24) (25) 9.2.6.1 Detailed Design Procedure Assume the system design requires a bandpass filter with f O = 1 kHz and Q = 50. What needs to be calculated are capacitor and resistor values. First choose convenient values for C1, R1, and R2: C1 = 1200 pF (26) 2R2 = R1 = 30 kΩ (27) Then from Equation 24, (28) From Equation 25, (29) 28 Submit Document Feedback Copyright © 2020 Texas Instruments Incorporated Product Folder Links: LMV321-N LMV321-N-Q1 LMV358-N LMV358-N-Q1 LMV324-N LMV324-N-Q1 LMV321-N, LMV321-N-Q1, LMV358-N LMV358-N-Q1, LMV324-N, LMV324-N-Q1 www.ti.com SNOS012K – AUGUST 2000 – REVISED AUGUST 2020 From the above calculated values, the midband gain is H0 = R3 / R2 = 100 (40 dB). The nearest 5% standard values have been added to Figure 9-10. 9.2.7 Pulse Generators and Oscillators A pulse generator is shown in Figure 9-11. Two diodes have been used to separate the charge and discharge paths to capacitor C. Figure 9-11. Pulse Generator When the output voltage VO is first at its high, VOH, the capacitor C is charged toward VOH through R2. The voltage across C rises exponentially with a time constant τ = R2C, and this voltage is applied to the inverting input of the op amp. Meanwhile, the voltage at the non-inverting input is set at the positive threshold voltage (VTH+) of the generator. The capacitor voltage continually increases until it reaches VTH+, at which point the output of the generator will switch to its low, VOL which 0 V is in this case. The voltage at the non-inverting input is switched to the negative threshold voltage (VTH−) of the generator. The capacitor then starts to discharge toward VOL exponentially through R1, with a time constant τ = R1C. When the capacitor voltage reaches VTH−, the output of the pulse generator switches to VOH. The capacitor starts to charge, and the cycle repeats itself. Copyright © 2020 Texas Instruments Incorporated Submit Document Feedback Product Folder Links: LMV321-N LMV321-N-Q1 LMV358-N LMV358-N-Q1 LMV324-N LMV324-N-Q1 29 LMV321-N, LMV321-N-Q1, LMV358-N LMV358-N-Q1, LMV324-N, LMV324-N-Q1 www.ti.com SNOS012K – AUGUST 2000 – REVISED AUGUST 2020 Figure 9-12. Waveforms of the Circuit in Figure 9-11 As shown in the waveforms in Figure 9-12, the pulse width (T1) is set by R2, C and VOH, and the time between pulses (T2) is set by R1, C and VOL. This pulse generator can be made to have different frequencies and pulse width by selecting different capacitor value and resistor values. Figure 9-13 shows another pulse generator, with separate charge and discharge paths. The capacitor is charged through R1 and is discharged through R2. Figure 9-13. Pulse Generator Figure 9-14 is a squarewave generator with the same path for charging and discharging the capacitor. 30 Submit Document Feedback Copyright © 2020 Texas Instruments Incorporated Product Folder Links: LMV321-N LMV321-N-Q1 LMV358-N LMV358-N-Q1 LMV324-N LMV324-N-Q1 LMV321-N, LMV321-N-Q1, LMV358-N LMV358-N-Q1, LMV324-N, LMV324-N-Q1 www.ti.com SNOS012K – AUGUST 2000 – REVISED AUGUST 2020 Figure 9-14. Squarewave Generator 9.2.8 Current Source and Sink The LMV321-N/LMV358-N/LMV324-N can be used in feedback loops which regulate the current in external PNP transistors to provide current sources or in external NPN transistors to provide current sinks. 9.2.8.1 Fixed Current Source A multiple fixed current source is shown in Figure 9-15. A voltage (VREF = 2 V) is established across resistor R3 by the voltage divider (R3 and R4). Negative feedback is used to cause the voltage drop across R1 to be equal to VREF. This controls the emitter current of transistor Q1 and if we neglect the base current of Q1 and Q2, essentially this same current is available out of the collector of Q1. Large input resistors can be used to reduce current loss and a Darlington connection can be used to reduce errors due to the β of Q1. The resistor, R2, can be used to scale the collector current of Q2 either above or below the 1 mA reference value. Figure 9-15. Fixed Current Source Copyright © 2020 Texas Instruments Incorporated Submit Document Feedback Product Folder Links: LMV321-N LMV321-N-Q1 LMV358-N LMV358-N-Q1 LMV324-N LMV324-N-Q1 31 LMV321-N, LMV321-N-Q1, LMV358-N LMV358-N-Q1, LMV324-N, LMV324-N-Q1 www.ti.com SNOS012K – AUGUST 2000 – REVISED AUGUST 2020 9.2.8.2 High Compliance Current Sink A current sink circuit is shown in Figure 9-16. The circuit requires only one resistor (RE) and supplies an output current which is directly proportional to this resistor value. Figure 9-16. High Compliance Current Sink 32 Submit Document Feedback Copyright © 2020 Texas Instruments Incorporated Product Folder Links: LMV321-N LMV321-N-Q1 LMV358-N LMV358-N-Q1 LMV324-N LMV324-N-Q1 LMV321-N, LMV321-N-Q1, LMV358-N LMV358-N-Q1, LMV324-N, LMV324-N-Q1 www.ti.com SNOS012K – AUGUST 2000 – REVISED AUGUST 2020 9.2.9 Power Amplifier A power amplifier is illustrated in Figure 9-17. This circuit can provide a higher output current because a transistor follower is added to the output of the op amp. Figure 9-17. Power Amplifier 9.2.10 LED Driver The LMV321-N/LMV358-N/LMV324-N can be used to drive an LED as shown in Figure 9-18. Figure 9-18. LED Driver 9.2.11 Comparator With Hysteresis The LMV321-N/LMV358-N/LMV324-N can be used as a low power comparator. Figure 9-19 shows a comparator with hysteresis. The hysteresis is determined by the ratio of the two resistors. VTH+ = VREF / (1+R 1 / R2) + VOH / (1 + R2 / R1) (30) VTH− = VREF / (1 + R 1 / R2) + VOL / (1 + R2 / R1) (31) VH = (VOH−VOL) / (1 + R 2 / R1) (32) where  VTH+: Positive Threshold Voltage  VTH−: Negative Threshold Voltage  VOH: Output Voltage at High  VOL: Output Voltage at Low  VH: Hysteresis Voltage Copyright © 2020 Texas Instruments Incorporated Submit Document Feedback Product Folder Links: LMV321-N LMV321-N-Q1 LMV358-N LMV358-N-Q1 LMV324-N LMV324-N-Q1 33 LMV321-N, LMV321-N-Q1, LMV358-N LMV358-N-Q1, LMV324-N, LMV324-N-Q1 www.ti.com SNOS012K – AUGUST 2000 – REVISED AUGUST 2020 Since LMV321-N/LMV358-N/LMV324-N have rail-to-rail output, the (VOH−VOL) is equal to VS, which is the supply voltage. VH = VS / (1 + R2 / R1) (33) The differential voltage at the input of the op amp should not exceed the specified absolute maximum ratings. For real comparators that are much faster, we recommend you use Texas Instruments' LMV331/LMV93/ LMV339, which are single, dual and quad general purpose comparators for low voltage operation. Figure 9-19. Comparator With Hysteresis 10 Power Supply Recommendations The LMV3xx-N is specified for operation from 2.7 V to 5.5 V; many specifications apply from –40°C to 125°C. Parameters that can exhibit significant variance with regard to operating voltage or temperature are presented in the Typical Characteristics section. Place 0.1-μF bypass capacitors close to the power-supply pins to reduce errors coupling in from noisy or high impedance power supplies. For more detailed information on bypass capacitor placement, refer to the Layout Guidelines section. 11 Layout 11.1 Layout Guidelines For best operational performance of the device, use good PCB layout practices, including: • • • • • • 34 Noise can propagate into analog circuitry through the power pins of the circuit as a whole and the operational amplifier. Bypass capacitors are used to reduce the coupled noise by providing low impedance power sources local to the analog circuitry. – Connect low-ESR, 0.1-μF ceramic bypass capacitors between each supply pin and ground, placed as close to the device as possible. A single bypass capacitor from V+ to ground is applicable for single supply applications. Separate grounding for analog and digital portions of circuitry is one of the simplest and most-effective methods of noise suppression. One or more layers on multilayer PCBs are usually devoted to ground planes. A ground plane helps distribute heat and reduces EMI noise pickup. Make sure to physically separate digital and analog grounds, paying attention to the flow of the ground current. To reduce parasitic coupling, run the input traces as far away from the supply or output traces as possible. If it is not possible to keep them separate, it is much better to cross the sensitive trace perpendicular as opposed to in parallel with the noisy trace. Place the external components as close to the device as possible. Keeping RF and RG close to the inverting input minimizes parasitic capacitance, as shown in the Layout Example section. Keep the length of input traces as short as possible. Always remember that the input traces are the most sensitive part of the circuit. Consider a driven, low-impedance guard ring around the critical traces. A guard ring can significantly reduce leakage currents from nearby traces that are at different potentials. Submit Document Feedback Copyright © 2020 Texas Instruments Incorporated Product Folder Links: LMV321-N LMV321-N-Q1 LMV358-N LMV358-N-Q1 LMV324-N LMV324-N-Q1 LMV321-N, LMV321-N-Q1, LMV358-N LMV358-N-Q1, LMV324-N, LMV324-N-Q1 www.ti.com SNOS012K – AUGUST 2000 – REVISED AUGUST 2020 11.2 Layout Example Figure 11-1. Operational Amplifier Board Layout for Noninverting Configuration Copyright © 2020 Texas Instruments Incorporated Submit Document Feedback Product Folder Links: LMV321-N LMV321-N-Q1 LMV358-N LMV358-N-Q1 LMV324-N LMV324-N-Q1 35 LMV321-N, LMV321-N-Q1, LMV358-N LMV358-N-Q1, LMV324-N, LMV324-N-Q1 www.ti.com SNOS012K – AUGUST 2000 – REVISED AUGUST 2020 12 Device and Documentation Support 12.1 Related Links The table below lists quick access links. Categories include technical documents, support and community resources, tools and software, and quick access to sample or buy. Table 12-1. Related Links PARTS PRODUCT FOLDER SAMPLE & BUY TECHNICAL DOCUMENTS TOOLS & SOFTWARE SUPPORT & COMMUNITY LMV321-N Click here Click here Click here Click here Click here LMV321-N-Q1 Click here Click here Click here Click here Click here LMV358-N Click here Click here Click here Click here Click here LMV358-N-Q1 Click here Click here Click here Click here Click here LMV324-N Click here Click here Click here Click here Click here LMV324-N-Q1 Click here Click here Click here Click here Click here 12.2 Receiving Notification of Documentation Updates To receive notification of documentation updates, navigate to the device product folder on ti.com. Click on Subscribe to updates to register and receive a weekly digest of any product information that has changed. For change details, review the revision history included in any revised document. 12.3 Support Resources TI E2E™ support forums are an engineer's go-to source for fast, verified answers and design help — straight from the experts. Search existing answers or ask your own question to get the quick design help you need. Linked content is provided "AS IS" by the respective contributors. They do not constitute TI specifications and do not necessarily reflect TI's views; see TI's Terms of Use. 12.4 Trademarks TI E2E™ is a trademark of Texas Instruments. All other trademarks are the property of their respective owners. 12.5 Electrostatic Discharge Caution This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with appropriate precautions. Failure to observe proper handling and installation procedures can cause damage. ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more susceptible to damage because very small parametric changes could cause the device not to meet its published specifications. 12.6 Glossary TI Glossary This glossary lists and explains terms, acronyms, and definitions. 13 Mechanical, Packaging, and Orderable Information The following pages include mechanical, packaging, and orderable information. This information is the most current data available for the designated devices. This data is subject to change without notice and revision of this document. For browser-based versions of this data sheet, refer to the left-hand navigation. 36 Submit Document Feedback Copyright © 2020 Texas Instruments Incorporated Product Folder Links: LMV321-N LMV321-N-Q1 LMV358-N LMV358-N-Q1 LMV324-N LMV324-N-Q1 PACKAGE OPTION ADDENDUM www.ti.com 19-Nov-2022 PACKAGING INFORMATION Orderable Device Status (1) Package Type Package Pins Package Drawing Qty Eco Plan (2) Lead finish/ Ball material MSL Peak Temp Op Temp (°C) Device Marking (3) Samples (4/5) (6) LMV321M5 NRND SOT-23 DBV 5 1000 Non-RoHS & Green Call TI Level-1-260C-UNLIM -40 to 125 A13 LMV321M5/NOPB ACTIVE SOT-23 DBV 5 1000 RoHS & Green SN Level-1-260C-UNLIM -40 to 125 A13 Samples LMV321M5X/NOPB ACTIVE SOT-23 DBV 5 3000 RoHS & Green SN Level-1-260C-UNLIM -40 to 125 A13 Samples LMV321M7/NOPB ACTIVE SC70 DCK 5 1000 RoHS & Green SN Level-1-260C-UNLIM -40 to 125 A12 Samples LMV321M7X NRND SC70 DCK 5 3000 Non-RoHS & Green Call TI Level-1-260C-UNLIM -40 to 125 A12 LMV321M7X/NOPB ACTIVE SC70 DCK 5 3000 RoHS & Green SN Level-1-260C-UNLIM -40 to 125 A12 Samples LMV321Q1M5/NOPB ACTIVE SOT-23 DBV 5 1000 RoHS & Green SN Level-1-260C-UNLIM -40 to 125 AYA Samples LMV321Q1M5X/NOPB ACTIVE SOT-23 DBV 5 3000 RoHS & Green SN Level-1-260C-UNLIM -40 to 125 AYA Samples LMV321Q3M5/NOPB ACTIVE SOT-23 DBV 5 1000 RoHS & Green SN Level-1-260C-UNLIM -40 to 85 AZA Samples LMV321Q3M5X/NOPB ACTIVE SOT-23 DBV 5 3000 RoHS & Green SN Level-1-260C-UNLIM -40 to 85 AZA Samples LMV324M NRND SOIC D 14 55 Non-RoHS & Green Call TI Level-1-235C-UNLIM -40 to 125 LMV324M LMV324M/NOPB ACTIVE SOIC D 14 55 RoHS & Green Call TI | SN Level-1-260C-UNLIM -40 to 125 LMV324M Samples LMV324MT/NOPB ACTIVE TSSOP PW 14 94 RoHS & Green NIPDAU | SN Level-1-260C-UNLIM -40 to 125 LMV324 MT Samples LMV324MTX/NOPB ACTIVE TSSOP PW 14 2500 RoHS & Green NIPDAU | SN Level-2-260C-1 YEAR -40 to 125 LMV324 MT Samples LMV324MX/NOPB ACTIVE SOIC D 14 2500 RoHS & Green Call TI | SN Level-1-260C-UNLIM -40 to 125 LMV324M Samples LMV324Q1MA/NOPB ACTIVE SOIC D 14 55 RoHS & Green Call TI | SN Level-1-260C-UNLIM -40 to 125 LMV324Q1 MA Samples LMV324Q1MAX/NOPB ACTIVE SOIC D 14 2500 RoHS & Green Call TI | SN Level-1-260C-UNLIM -40 to 125 LMV324Q1 MA Samples LMV324Q1MT/NOPB ACTIVE TSSOP PW 14 94 RoHS & Green SN Level-1-260C-UNLIM -40 to 125 LMV324 Q1MT Samples Addendum-Page 1 PACKAGE OPTION ADDENDUM www.ti.com 19-Nov-2022 Orderable Device Status (1) Package Type Package Pins Package Drawing Qty Eco Plan (2) Lead finish/ Ball material MSL Peak Temp Op Temp (°C) Device Marking (3) Samples (4/5) (6) LMV324Q1MTX/NOPB ACTIVE TSSOP PW 14 2500 RoHS & Green SN Level-1-260C-UNLIM -40 to 125 LMV324 Q1MT Samples LMV324Q3MA/NOPB ACTIVE SOIC D 14 55 RoHS & Green Call TI | SN Level-1-260C-UNLIM -40 to 85 LMV324Q3 MA Samples LMV324Q3MAX/NOPB ACTIVE SOIC D 14 2500 RoHS & Green Call TI | SN Level-1-260C-UNLIM -40 to 85 LMV324Q3 MA Samples LMV324Q3MT/NOPB ACTIVE TSSOP PW 14 94 RoHS & Green SN Level-1-260C-UNLIM -40 to 85 LMV324 Q3MT Samples LMV324Q3MTX/NOPB ACTIVE TSSOP PW 14 2500 RoHS & Green SN Level-1-260C-UNLIM -40 to 85 LMV324 Q3MT Samples LMV358M NRND SOIC D 8 95 Non-RoHS & Green Call TI Level-1-235C-UNLIM -40 to 125 LMV 358M LMV358M/NOPB ACTIVE SOIC D 8 95 RoHS & Green SN Level-1-260C-UNLIM -40 to 125 LMV 358M Samples LMV358MM/NOPB ACTIVE VSSOP DGK 8 1000 RoHS & Green NIPDAUAG | SN Level-2-260C-1 YEAR -40 to 125 V358 Samples LMV358MMX/NOPB ACTIVE VSSOP DGK 8 3500 RoHS & Green NIPDAUAG | SN Level-2-260C-1 YEAR -40 to 125 V358 Samples LMV358MX NRND SOIC D 8 2500 Non-RoHS & Green Call TI Level-1-235C-UNLIM -40 to 125 LMV 358M LMV358MX/NOPB ACTIVE SOIC D 8 2500 RoHS & Green SN Level-1-260C-UNLIM -40 to 125 LMV 358M Samples LMV358Q1MA/NOPB ACTIVE SOIC D 8 95 RoHS & Green SN Level-1-260C-UNLIM -40 to 125 LMV35 8Q1MA Samples LMV358Q1MAX/NOPB ACTIVE SOIC D 8 2500 RoHS & Green SN Level-1-260C-UNLIM -40 to 125 LMV35 8Q1MA Samples LMV358Q1MM/NOPB ACTIVE VSSOP DGK 8 1000 RoHS & Green SN Level-1-260C-UNLIM -40 to 125 AFAA Samples LMV358Q1MMX/NOPB ACTIVE VSSOP DGK 8 3500 RoHS & Green SN Level-1-260C-UNLIM -40 to 125 AFAA Samples LMV358Q3MA/NOPB ACTIVE SOIC D 8 95 RoHS & Green SN Level-1-260C-UNLIM -40 to 85 LMV35 8Q3MA Samples LMV358Q3MAX/NOPB ACTIVE SOIC D 8 2500 RoHS & Green SN Level-1-260C-UNLIM -40 to 85 LMV35 8Q3MA Samples LMV358Q3MM/NOPB ACTIVE VSSOP DGK 8 1000 RoHS & Green SN Level-1-260C-UNLIM -40 to 85 AHAA Samples Addendum-Page 2 PACKAGE OPTION ADDENDUM www.ti.com Orderable Device 19-Nov-2022 Status (1) Package Type Package Pins Package Drawing Qty Eco Plan (2) Lead finish/ Ball material RoHS & Green SN MSL Peak Temp Op Temp (°C) Device Marking (3) Samples (4/5) (6) LMV358Q3MMX/NOPB ACTIVE VSSOP DGK 8 3500 Level-1-260C-UNLIM -40 to 85 AHAA (1) The marketing status values are defined as follows: ACTIVE: Product device recommended for new designs. LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect. NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design. PREVIEW: Device has been announced but is not in production. Samples may or may not be available. OBSOLETE: TI has discontinued the production of the device. (2) RoHS: TI defines "RoHS" to mean semiconductor products that are compliant with the current EU RoHS requirements for all 10 RoHS substances, including the requirement that RoHS substance do not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, "RoHS" products are suitable for use in specified lead-free processes. TI may reference these types of products as "Pb-Free". RoHS Exempt: TI defines "RoHS Exempt" to mean products that contain lead but are compliant with EU RoHS pursuant to a specific EU RoHS exemption. Green: TI defines "Green" to mean the content of Chlorine (Cl) and Bromine (Br) based flame retardants meet JS709B low halogen requirements of
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