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THS4304DGKEVM

THS4304DGKEVM

  • 厂商:

    BURR-BROWN(德州仪器)

  • 封装:

    -

  • 描述:

    THS4304 1 - Single Channels per IC Voltage Feedback Amplifier Evaluation Board

  • 数据手册
  • 价格&库存
THS4304DGKEVM 数据手册
THS4304 www.ti.com SLOS436A – MARCH 2004 – REVISED JULY 2004 Wideband Operational Amplifier FEATURES APPLICATIONS • • • • • • • • • • Wide Bandwidth: 3 GHz High Slew Rate: 830 V/µs Low Voltage Noise: 2.4 nV/√Hz Single Supply: 5 V, 3 V Quiescent Current: 18 mA Active Filter ADC Driver Ultrasound Gamma Camera RF/Telecom DESCRIPTION The THS4304 is a wideband, voltage-feedback operational amplifier designed for use in high-speed analog signal-processing chains operating with a single 5-V power supply. Developed in the BiCom3 silicon germanium process technology, the THS4304 offers best-in-class performance using a single 5-V supply as opposed to previous generations of operational amplifiers requiring ±5-V supplies. The THS4304 is a traditional voltage-feedback topology that provides the following benefits: balanced inputs, low offset voltage and offset current, low offset drift, high common mode and power supply rejection ratio. The THS4304 is offered in 8-pin MSOP package (DGK), the 8-pin SOIC package (D), and the space-saving 5-pin SOT-23 package (DBV). DIFFERENTIAL ADC DRIVE +5V 10 kΩ 90 V REF (= 2.5V) RG RF 0.1 µF 10 kΩ Combined THS4304 and ADS5500 SFDR V REF 85 +5V V IN dB +3.3 VA +3.3 VD THS 4304 1: 1 100 Ω V REF From 50−Ω source 49 .9 Ω 1nF 1k Ω CM +5V A IN+ 80 ADS 5500 1k Ω A IN− CM D G = 10 dB, RF = 249 Ω, RG = 115 Ω, SNR = 69.6, FS = 125 MSPS A THS 4304 100 Ω 1nF CM 0.1 µF 75 10 20 30 40 50 f − Frequency − MHz V REF RG RF Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. Copyright © 2004, Texas Instruments Incorporated THS4304 www.ti.com SLOS436A – MARCH 2004 – REVISED JULY 2004 These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates. PINOUT DRAWING TOP VIEW DBV VOUT 1 VS− 2 IN+ 3 5 4 TOP VIEW VS+ D and DGK NC 1 8 NC IN− 2 7 VS+ IN+ 3 6 VOUT VS− 4 5 VOUT IN− NOTE: NC indicates there is no internal connection to these pins. PACKAGING / ORDERING INFORMATION PACKAGED DEVICES THS4304DBVT THS4304DBVR THS4304D THS4304DR THS4304DGK THS4304DGKR PACKAGE TYPE PACKAGE MARKINGS SOT-23-5 AKW SOIC-8 — MSOP-8 AKU TRANSPORT MEDIA, QUANTITY Tape and Reel, 250 Tape and Reel, 3000 Rails, 75 Tape and Reel, 2500 Rails, 100 Tape and Reel, 2500 DISSIPATION RATINGS (1) (2) 2 POWER RATING (2) PACKAGE θJC (°C/W) θJA (°C/W) (1) TA≤ 25°C TA = 85°C DBV (5) 55 255.4 391 mW 156 mW D (8) 38.3 97.5 1.02 W 410 mW DGK (8) 71.5 180.8 553 mW 221 mW This data was taken using the JEDEC standard High-K test PCB. Power rating determined with a junction temperature of 125°C. This is the point where distortion starts to substantially increase. Thermal management of the final PCB should strive to keep the junction temperature at or below 125°C for best performance and long-term reliability. THS4304 www.ti.com SLOS436A – MARCH 2004 – REVISED JULY 2004 ABSOLUTE MAXIMUM RATINGS (1) over operating free-air temperature range (unless otherwise noted) UNIT VS Supply voltage VI Input voltage +6.0 V IO Output current VID Differential input voltage ±VS 150 mA ±2 V Continuous power dissipation TJ Tstg See Dissipation Rating Table Maximum junction temperature, any condition (2) 150°C Operating free-air temperature range, continuous operation, long-term reliability (2) 125°C Storage temperature range –65°C to 150°C Lead temperature: 1,6 mm (1/16 inch) from case for 10 seconds ESD Ratings (1) (2) 300°C HBM 1600 V CDM 1000 V MM 100 V The absolute maximum ratings under any condition is limited by the constraints of the silicon process. Stresses above these ratings may cause permanent damage. Exposure to absolute maximum conditions for extended periods may degrade device reliability. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those specified is not implied. The maximum junction temperature for continuous operation is limited by package constraints. Operation above this temperature may result in reduced reliability and/or lifetime of the device. RECOMMENDED OPERATING CONDITIONS over operating free-air temperature range (unless otherwise noted) Supply voltage, (VS+ and VS–) Input common-mode voltage range Dual supply Single supply MIN MAX ±1.35 ±2.5 2.7 5 VS–– 0.2 VS+ + 0.2 UNIT V V 3 THS4304 www.ti.com SLOS436A – MARCH 2004 – REVISED JULY 2004 ELECTRICAL CHARACTERISTICS Specifications: VS = 5 V: RF = 249 Ω, RL = 100 Ω, and G = +2 unless otherwise noted TYP PARAMETER CONDITIONS 25°C OVER TEMPERATURE 25°C 0°C to 70°C –40°C to 85°C TEST LEVEL (1) UNITS MIN/ MAX GHz Typ C AC PERFORMANCE G = +1, VO = 100 mVpp 3 G = +2, VO = 100 mVpp 1 GHz Typ C G = +5, VO = 100 mVpp 187 MHz Typ C G = +10, VO = 100 mVpp 87 MHz Typ C Gain Bandwidth Product G >+10 870 MHz Typ C 0.1-dB Flat Bandwidth G= +2, VO = 100 mVpp, CF = 0.5 pF 300 MHz Typ Large-Signal Bandwidth G = +2, VO = 2 VPP 240 MHz Typ C G = +2, VO = 1-V Step 830 V/µs Typ C G = +2, VO = 2-V Step 790 V/µs Typ C Settling Time to 1% G = –2, VO = 2-V Step 4.5 ns Typ C Settling Time to 0.1% G = –2, VO = 2-V Step 7.5 ns Typ C Settling Time to 0.01% G = –2, VO = 2-V Step 35 ns Typ C Rise / Fall Times G = +2, VO = 2-V Step 2.5 ns Typ C RL= 100 Ω –84 dBc Typ C RL = 1 kΩ –95 dBc Typ C RL = 100 Ω –100 dBc Typ C RL = 1 kΩ –100 dBc Typ C –84 dBc Typ C 48 dBm Typ C Small-Signal Bandwidth Slew Rate C Harmonic Distortion Second Harmonic Distortion Third Harmonic Distortion Third-Order Intermodulation Distortion (IMD3) Third-Order Output Intercept (OIP3) G = +2, VO = 2 VPP, f = 10 MHz G = +2, VO= 2-VPP envelope, 200-kHz tone spacing, f = 20 MHz Noise Figure G = +2, f = 1 GHz 15 dB Typ C Input Voltage Noise f = 1 MHz 2.4 nV/√Hz Typ C Input Current Noise f = 1 MHz 2.1 pA/√Hz Typ C VO = ± 0.8 V, VCM = 2.5 V 65 54 50 50 dB Min A 0.5 4 5 5 mV Max A 5 5 µV/°C Typ B 18 µA Max A DC PERFORMANCE Open-Loop Voltage Gain (AOL) Input Offset Voltage Input Offset Voltage Drift Input Bias Current Input Bias Current Drift VCM = 2.5 V Input Offset Current 7 12 18 50 50 nA/°C Typ B 0.5 1 1.2 1.2 µA Max A 10 10 nA/°C Typ B A Input Offset Current Drift INPUT CHARACTERISTICS Common-Mode Input Range Common-Mode Rejection Ratio Input Resistance Input Capacitance (1) 4 VO = ± 0.2 V, VCM = 2.5 V Each input, referenced to GND –0.2 to 5.2 0.2 to 4.8 0.4 to 4.6 0.4 to 4.6 V Min 95 80 73 73 dB Min 100 kΩ Typ C 1.5 pF Typ C A Test levels: (A) 100% tested at 25°C. Over temperature limits by characterization and simulation. (B) Limits set by characterization and simulation. (C) Typical value only for information. THS4304 www.ti.com SLOS436A – MARCH 2004 – REVISED JULY 2004 ELECTRICAL CHARACTERISTICS (continued) Specifications: VS = 5 V: RF = 249 Ω, RL = 100 Ω, and G = +2 unless otherwise noted PARAMETER CONDITIONS TYP OVER TEMPERATURE 25°C 25°C 0°C to 70°C –40°C to 85°C 1.1 to 3.9 1.2 to 3.8 1.3 to 3.7 1.3 to 3.7 1 to 4 1.1 to 3.9 1.2 to 3.8 1.2 to 3.8 140 100 57 92 65 40 TEST LEVEL (1) UNITS MIN/ MAX V Min A 57 mA Min A 40 mA Min A Ω Typ A OUTPUT CHARACTERISTICS RL = 100 Ω Output Voltage Swing RL = 1 kΩ Output Current (Sourcing) RL = 10 Ω Output Current (Sinking) RL = 10 Ω Output Impedance f = 100 kHz 0.016 POWER SUPPLY Maximum Operating Voltage 5 5.5 5.5 5.5 Minimum Operating Voltage 5 2.7 2.7 2.7 Maximum Quiescent Current 18 18.9 19.4 19.4 mA Max A Minimum Quiescent Current 18 17.5 16.6 16.6 mA Min A V Max Min A Power Supply Rejection (+PSRR) VS+ = 5.5 V to 4.5 V, VS– = 0 V 80 73 66 66 dB Min A Power Supply Rejection (-PSRR) VS+ = 5 V, VS– = –0.5 V to +0.5 V 60 57 54 54 dB Min A 5 THS4304 www.ti.com SLOS436A – MARCH 2004 – REVISED JULY 2004 ELECTRICAL CHARACTERISTICS Specifications: VS = 3 V: RF = 249 Ω, RL = 499 Ω, and G = +2 unless otherwise noted TYP PARAMETER CONDITIONS 25°C OVER TEMPERATURE 25°C 0°C to 70°C –40°C to 85°C UNITS MIN/ MAX TEST LEVEL (1) AC PERFORMANCE Small-Signal Bandwidth G = +1, VO = 100 mVpp 3 GHz Typ C G = +2, VO = 100 mVpp 900 MHz Typ C G = +5, VO = 100 mVpp 190 MHz Typ C G = +10, VO = 100 mVpp 83 MHz Typ C Gain Bandwidth Product G >+10 830 MHz Typ C Large-Signal Bandwidth G = +2, VO = 1 VPP 450 MHz Typ C G = +2, VO = 1-V Step 750 V/µs Typ C Slew Rate G = +2, VO = 1-V Step 675 V/µs Typ C Settling Time to 1% G = –2, VO = 0.5-V Step 4.5 ns Typ C Settling Time to 0.1% G = –2, VO = 0.5-V Step 20 ns Typ C Rise / Fall Times G = +2, VO = 0.5-V Step 1.5 ns Typ C G = +2, VO = 0.5 VPP, f = 10 MHz –92 dBc Typ C –91 dBc Typ C Harmonic Distortion Second Harmonic Distortion Third Harmonic Distortion RL = 499 Ω Noise Figure G = +2, f = 1 GHz 15 dB Typ C Input Voltage Noise f = 1 MHz 2.4 nV/√Hz Typ C Input Current Noise f = 1 MHz 2.1 pA/√Hz Typ C VO = ± 0.5 V, VCM = 1.5 V 49 44 dB Min A 2 4 DC PERFORMANCE Open-Loop Voltage Gain (AOL) Input Offset Voltage Input Offset Voltage Drift Input Bias Current Input Bias Current Drift VCM = 1.5 V Input Offset Current 7 0.4 12 1 Input Offset Current Drift 5 5 mV Max A 5 5 µV/°C Typ B 18 18 µA Max A 50 50 nA/°C Typ B 1.2 1.2 µA Max A 10 10 nA/°C Typ B V Min A INPUT CHARACTERISTICS Common-Mode Input Range Common-Mode Rejection Ratio Input Resistance Input Capacitance (1) 6 VO = ± 0.09 V, VCM = 1.5 V Each input, referenced to GND –0.2 to 3.2 0.2 to 2.8 0.4 to 2.6 0.4 to 2.6 92 80 70 70 dB Min A 100 kΩ Typ C 1.5 pF Typ C Test levels: (A) 100% tested at 25°C. Over temperature limits by characterization and simulation. (B) Limits set by characterization and simulation. (C) Typical value only for information. THS4304 www.ti.com SLOS436A – MARCH 2004 – REVISED JULY 2004 ELECTRICAL CHARACTERISTICS (continued) Specifications: VS = 3 V: RF = 249 Ω, RL = 499 Ω, and G = +2 unless otherwise noted TYP PARAMETER CONDITIONS OVER TEMPERATURE 25°C 25°C 0°C to 70°C –40°C to 85°C 1.1 to 1.9 1.2 to 1.8 1.3 to 1.7 1.3 to 1.7 1 to 2 1.1 to 1.9 1.2 to 1.8 1.2 to 1.8 TEST LEVEL (1) UNITS MIN/ MAX V Min A OUTPUT CHARACTERISTIC RL = 100 Ω Output Voltage Swing RL = 1 kΩ Output Current (Sourcing) RL = 10 Ω 57 50 40 40 mA Min A Output Current (Sinking) RL = 10 Ω 57 45 35 35 mA Min A Output Impedance f = 100 kHz Ω Typ A 0.016 POWER SUPPLY Maximum Operating Voltage 3 5.5 5.5 5.5 Minimum Operating Voltage 3 2.7 2.7 2.7 Maximum Quiescent Current 17.2 17.9 18.4 18.4 mA Max A Minimum Quiescent Current V Max Min A 17.2 16.5 15.6 15.6 mA Min A Power Supply Rejection (+PSRR) VS+ = 3.3 V to 2.7 V, VS– = 0 V 80 60 54 54 dB Min A Power Supply Rejection (-PSRR) VS+ = 5 V, VS– = –0.5 V to +0.5 V 60 55 52 52 dB Min A 7 THS4304 www.ti.com SLOS436A – MARCH 2004 – REVISED JULY 2004 TYPICAL CHARACTERISTICS Table of Graphs FIGURE 5V Frequency response 1–3, 5, 6 0.1-dB Flatness 4 Frequency response by package 7 S-Parameters vs Frequency 8 2nd Harmonic distortion vs Frequency 9, 11 3rd Harmonic distortion vs Frequency 10, 12 2nd Harmonic distortion vs Output voltage 13 3rd Harmonic distortion vs Output voltage 14 IMD3 3rd Order intermodulation distortion vs Frequency 15 OIP3 3rd Order output intercept point vs Frequency 16 SR Slew rate vs Output voltage 17 Vn/In Noise vs Frequency 18 Noise figure vs Frequency 19 Quiescent current vs Supply voltage 20 Rejection ratio vs Frequency 21 VO Output voltage vs Load resistance 22 VOS Input offset voltage vs Input common-mode voltage 23 IIB Input bias and offset current vs Case temperature 24 VOS Input offset voltage vs Case temperature 25 Open-loop gain vs Frequency 26 Iq VO Small-signal transient response 27 VO Large-signal transient response 28 VO Settling time 29 VO Overdrive recovery time ZO Output impedance 30 vs Frequency 31 3V Frequency response 32–35 2nd Harmonic distortion vs Frequency 36 3rd Harmonic distortion vs Frequency 37 Harmonic Distortion vs Output voltage 38 SR Slew rate vs Output voltage 39 VO Settling time VO Output voltage vs Load resistance 41 IIB Input bias and offset current vs Case temperature 42 VOS Input offset voltage vs Case temperature 43 VO Large-signal transient response VO Overdrive recovery time ZO Output impedance 8 40 44 45 vs Frequency 46 THS4304 www.ti.com SLOS436A – MARCH 2004 – REVISED JULY 2004 TYPICAL CHARACTERISTICS (5 V) FREQUENCY RESPONSE 8 3 7 2 VO = 200 mVPP 0 VO = 400 mVPP −1 −2 10 M 6 5 CF = 0.5 pF CF = 1 pF 3 100 M 1G 0 10 G 1M 10 M f − Frequency − Hz 0.1-dB FLATNESS Gain = 2, RF = 249 Ω, CF = 0.5 pF, RL = 100 Ω, VO = 100 mVPP, VS = 5 V 90 MHz 18 16 300 MHz 6 5.9 5.8 10 G 10 100 M 1G 100 M 18 16 8 6 4 480 MHz RF = 0 Ω 87 MHz 20 RF = 249 Ω, RL = 100 Ω, VO = 1 VPP, VS = 5 V 1G 10 G 12 10 175 MHz 8 6 4 240 MHz RF = 0 Ω 0 −2 560 MHz 290 MHz −4 10 M 100 M 1G RF = 249 Ω, RL = 100 Ω, VO = 2 VPP, VS = 5 V 14 2 10 G 1M f − Frequency − Hz 10 M 100 M 1G 10 G f − Frequency − Hz Figure 4. Figure 5. Figure 6. FREQUENCY RESPONSE BY PACKAGE S-PARAMETERS vs FREQUENCY 2ND HARMONIC DISTORTION vs FREQUENCY −40 10 8 SOIC −20 Signal Gain − dB 7 6 MSOP 5 4 Gain = 2, RF = 249 Ω, RL = 100 Ω, VO = 100 mVPP, VS = 5 V 10 M S22 −40 S11 100 M f − Frequency − Hz Figure 7. 1G 10 G S12 −60 Gain = 2, RF = 249 Ω, RL = 100 Ω, VO = 100 mVPP, VS = 5 V −80 0 1M S21 0 2nd Harmonic Distortion − dBc SOT-23 9 Signal Gain − dB 10 M FREQUENCY RESPONSE 200 MHz f − Frequency − Hz 1 1M Figure 3. 12 0 −2 −4 1M 5.6 2 G = 1, RF = 0 Ω f − Frequency − Hz 14 2 5.7 3 G=2 22 20 10 M 8 6 4 FREQUENCY RESPONSE 6.1 1M G=5 2 0 −2 −4 100 k 22 Signal Gain − dB Signal Gain − dB 1G 16 14 12 10 Figure 2. 6.4 6.2 100 M RF = 249 Ω, RL = 100 Ω, VO = 100 mVPP VS = 5 V G = 10 f − Frequency − Hz Figure 1. 6.3 1 GHz 4 1 3 GHz 1M CF = 0 pF 2 VO = 800 mVPP −3 −4 Gain = 2, RF = 249 Ω, RL = 100 Ω, VO = 100 mVPP, VS = 5 V 9 VO = 100 mVPP 4 1 FREQUENCY RESPONSE 24 22 20 18 Signal Gain − dB Gain = 1, RL = 100 Ω, VS = 5 V Signal Gain − dB Signal Gain − dB 5 FREQUENCY RESPONSE 10 Signal Gain − dB 6 −100 1M 10 M 100 M f − Frequency − Hz Figure 8. 1G −50 −60 Gain = 2 RF = 249 Ω VO = 2 VPP VS = 5 V SOT-23 RL = 100 Ω MSOP RL = 100 Ω −70 −80 −90 −100 MSOP and SOT-23 RL = 499 to 1 k Ω 10 G −110 1M 10 M 100 M f − Frequency − Hz Figure 9. 9 THS4304 www.ti.com SLOS436A – MARCH 2004 – REVISED JULY 2004 TYPICAL CHARACTERISTICS (5 V) (continued) 3RD HARMONIC DISTORTION vs FREQUENCY 2ND HARMONIC DISTORTION vs FREQUENCY −70 MSOP and SOT-23 RL = 100 Ω to 1 kΩ −80 −90 −100 −50 −60 SOT-23 RL = 100 Ω −70 MSOP RL = 100 Ω −80 −90 −100 10 M 1M 1M −70 −80 10 M f − Frequency − Hz MSOP and SOT-23 RL = 100 Ω to 1 kΩ −90 −100 −110 10 M 1M 100 M 100 M f − Frequency − Hz Figure 10. Figure 11. Figure 12. 2ND HARMONIC DISTORTION vs OUTPUT VOLTAGE 3RD HARMONIC DISTORTION vs OUTPUT VOLTAGE 3RD ORDER INTERMODULATION DISTORTION vs FREQUENCY −40 −30 −70 SOT-23 RL = 100 Ω −90 SOT-23 RL = 499 Ω to 1 kΩ −50 −60 0.5 1 1.5 2 2.5 VO − Output Voltage − VPP −70 −80 SOT-23 RL = 100 Ω to 1 kΩ −70 −80 −90 −90 −100 −100 0 3 VO = 2 VPP envelope −60 −110 −110 0.5 1 1.5 2 2.5 3 −110 VO = 1 VPP envelope 10 M VO − Output Voltage − VPP 100 M f − Frequency − Hz Figure 13. Figure 14. Figure 15. 3RD ORDER OUTPUT INTERCEPT POINT vs FREQUENCY SLEW RATE vs OUTPUT VOLTAGE NOISE vs FREQUENCY 900 60 50 SR − Slew Rate − V/ µ s 800 40 30 Gain = 2, RF = 249 Ω, RL = 100 Ω, VO = 2−VPP envelope, 200−kHz Spacing, VS = 5 V 10 f − Frequency − Hz Figure 16. 750 Rise 700 Fall 650 600 550 500 100 In 10 Vn 450 1 100 M 10 M 1000 Gain = 2, RF = 249 Ω, RL = 100 Ω, VS = 5 V 850 Hz 0 −50 Gain = 2, RF = 249 Ω, RL = 100 Ω, 200 kHz Spacing, VS = 5 V −40 V n − Voltage Noise − nV/ −80 −40 IMD 3 − dBc −60 −30 Gain = 2, RF = 249 Ω, RL = 100 Ω, f = 10 MHz, VS = 5 V Hz −50 3rd Harmonic Distortion − dBc Gain = 2, RF = 249 Ω, RL = 100 Ω, f = 10 MHz, VS = 5 V −100 OIP 3 − dBm −60 −110 100 M f − Frequency − Hz Gain = 2, RF = 249 Ω, VO = 1 VPP, VS = 5 V −50 MSOP and SOT-23 RL = 499 Ω to 1 kΩ −110 10 3rd Harmonic Distortion − dBc −60 Gain = 2 RF = 249 Ω VO = 1 VPP VS = 5 V I n − Current Noise − pA/ 3rd Harmonic Distortion − dBc −50 2nd Harmonic Distortion − dBc Gain = 2, RF = 249 Ω, VO = 2 VPP, VS = 5 V −40 3rd Harmonic Distortion − dBc −40 −40 −30 20 3RD HARMONIC DISTORTION vs FREQUENCY 400 0 0.5 1 1.5 2 VO − Output Voltage −VPP Figure 17. 2.5 3 10 100 1k 10 k 100 k f − Frequency − Hz Figure 18. 1M 10 M THS4304 www.ti.com SLOS436A – MARCH 2004 – REVISED JULY 2004 TYPICAL CHARACTERISTICS (5 V) (continued) NOISE FIGURE vs FREQUENCY QUIESCENT CURRENT vs SUPPLY VOLTAGE 14 12 10 8 6 Gain = 2, RF = 249 Ω, RG = 249 Ω, RL = 100 Ω, VS = 5 V 4 2 0 18 16 TA = 25°C 14 500 M TA = −40°C 12 10 8 6 40 30 10 0 2.5 3.5 4.5 3 4 VS − Supply Voltage − V 5 10 k 100 k 1M 10 M 100 M 1G f − Frequency − Hz Figure 19. Figure 20. Figure 21. OUTPUT VOLTAGE vs LOAD RESISTANCE INPUT OFFSET VOLTAGE vs INPUT COMMON-MODE VOLTAGE INPUT BIAS AND OFFSET CURRENT vs CASE TEMPERATURE 5 9 3 VS = 5 V 2.5 2 1.5 8 I IB − Input Bias Current − µ A 3.5 VS = 5 V 4 3.5 3 2.5 2 1.5 260 240 6 220 IIB+ 5 200 4 180 3 160 IOS 2 140 1 120 100 0 −40−30 −20−10 0 10 20 30 40 50 60 70 80 90 0 100 IIB− 7 1 0.5 1 280 VS = 5 V 1000 −1 RL − Load Resistance − Ω 0 1 2 3 4 5 6 Case Temperature − °C VICR − Input Common-Mode Range − V Figure 22. Figure 23. Figure 24. INPUT OFFSET VOLTAGE vs CASE TEMPERATURE OPEN-LOOP GAIN vs FREQUENCY SMALL-SIGNAL TRANSIENT RESPONSE 80 VS = 5 V 70 Open-Loop Gain − dB 60 400 300 200 100 0 −40−30−20−10 0 10 20 30 40 50 60 70 80 90 Case Temperature − °C Figure 25. 2.6 −20 Gain 2.5 50 −40 40 −60 30 Phase −80 20 −100 10 −120 0 −140 −10 −160 −20 10 k 100 k 1 M 10 M 2.7 Input 0 Phase − ° 500 2.8 20 VS = 5 V 100 M 1 G f − Frequency − Hz Figure 26. −180 10 G VO − Output Voltage − V 600 I VOS − Input Offset Voltage − mV 4.5 10 PSRR− 50 20 2 4 VO − Output Voltage − V 60 2 f − Frequency − Hz VOS − Input Offset Voltage − µ V 70 4 1G PSRR+ 80 0 10 M VS = 5 V CMRR 90 Rejection Ratio − dB Noise Figure − dB 16 110 100 TA = 85°C OS − Input Offset Current − nA 20 2.9 2.4 Output 2.8 2.3 2.7 2.6 Gain = 2 RL = 100 Ω RF = 249 Ω tr/tf = 300 ps VS = 5 V 2.5 2.4 2.3 2.2 VI − Input Voltage − V 22 18 I q − Quiescent Current − mA 20 REJECTION RATIO vs FREQUENCY 0 10 20 30 40 50 60 t − Time − ns Figure 27. 11 THS4304 www.ti.com SLOS436A – MARCH 2004 – REVISED JULY 2004 TYPICAL CHARACTERISTICS (5 V) (continued) 3.5 2 Output 1.5 3.5 3 Gain = 2 RL = 100 Ω RF = 249 Ω VS = 5 V 2.5 2 1.5 Input 4 3.5 VO − Output Voltage − V VO − Output Voltage − V 2.5 3 Gain = 2 RL = 100 Ω RF = 249 Ω VS = 5 V 2.5 2 1.5 10 20 30 40 50 0 1 t − Time − ns 2 3 4 5 6 7 t − Time − ns Figure 28. Figure 29. Z o − Output Impedance − Ω 10 k Gain = 2, RF = 249 Ω, VS = 5 V 100 10 1 0.1 0.01 100 k 1M 10 M f − Frequency − Hz Figure 31. 12 3 2.75 3 2.5 2.5 Output 2 2.25 1.5 2 1.75 1.5 0 0.1 0.2 0.3 0.4 0.5 t − Time − µs Figure 30. OUTPUT IMPEDANCE vs FREQUENCY 1k 3.25 0.5 1 60 3.5 Gain = 2 RL = 100 Ω RF = 249 Ω VS = 5 V 1 1 0 3.5 4.5 4 V O− Output Voltage − V 3 VI − Input Voltage − V Input 4 OVERDRIVE RECOVERY TIME SETTLING TIME 100 M 1G 0.6 0.7 VI − Input Voltage − V LARGE-SIGNAL TRANSIENT RESPONSE THS4304 www.ti.com SLOS436A – MARCH 2004 – REVISED JULY 2004 TYPICAL CHARACTERISTICS (3 V) FREQUENCY RESPONSE FREQUENCY RESPONSE 10 8 VO = 200 mVPP 6 5 VO = 400 mVPP 4 −3dB 900 MHz 7 CF = 0.5 pF 6 5 4 CF = 1 pF VO = 800 mVPP 2 2 1 1 0 10 M 0 100 M 1G 10 G 100 M 22 2nd Harmonic Distortion − dBc RF = 249 Ω, RL = 499 Ω, VO = 1 VPP, VS = 3 V Gain = 2 RL = 499 Ω RF = 249 Ω, VO = 500 mVPP, VS = 3 V −60 −70 −80 −90 −100 −4 1M 10 M 100 M 1M 1G 10 M f − Frequency − Hz 100 M Gain = 2 RL = 499 Ω RF = 249 Ω, VO = 500 mVPP, VS = 3 V −60 −70 −80 −90 −100 1M 10 M f − Frequency − Hz f − Frequency − Hz Figure 35. Figure 36. HARMONIC DISTORTION vs OUTPUT VOLTAGE SLEW RATE vs OUTPUT VOLTAGE −40 SETTLING TIME 1.75 Gain = 2, RF = 249 Ω, RL = 499 Ω, VS = 3 V 850 −60 −70 −80 HD 2 800 Rise V O− Output Voltage − V Gain = 2 RL = 499 Ω RF = 249 Ω, f = 10 MHz, VS = 3 V 750 Fall 700 650 600 550 500 −90 100 M Figure 37. 900 SR − Slew Rate − V/µ s −50 10 G −50 −50 −3 dB 450 MHz 0 −2 1G FREQUENCY RESPONSE 10 2 100 M f − Frequency − Hz 3RD HARMONIC DISTORTION vs FREQUENCY 12 4 10 M 2ND HARMONIC DISTORTION vs FREQUENCY −3 dB 90 MHz 6 1M 10 G Figure 34. 14 8 G 1, RF 0Ω Figure 33. 18 16 G2 Figure 32. −3 dB 85 MHz 20 1G G5 f − Frequency − Hz f − Frequency − Hz 3rd Harmonic Distortion − dBc 10 M RF = 249 Ω, RL = 499 Ω, VO = 100 mVPP, VS = 3 V G 10 8 6 4 2 0 −2 −4 3 3 Signal Gain − dB CF = 0 pF Signal Gain − dB 7 Gain = 2 RL = 499 Ω RF = 249 Ω, VO = 100 mVPP, VS = 3 V 9 Signal Gain − dB 8 Signal Gain − dB VO = 100 mVPP Gain = 2 RL = 499 Ω RF = 249 Ω, VS = 3 V 9 Harmonic Distortion − dBc FREQUENCY RESPONSE 24 22 20 18 16 14 12 10 10 1.65 Gain = 2 RL = 499 Ω RF = 249 Ω VS = 3 V 1.55 1.45 1.35 450 HD 3 −100 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 VO − Output Voltage − VPP Figure 38. 1 400 0 0.1 0.2 0.3 0.4 VO − Output Voltage − VPP Figure 39. 0.5 0.6 1.25 0 1 2 3 4 5 6 7 8 9 10 t − Time − ns Figure 40. 13 THS4304 www.ti.com SLOS436A – MARCH 2004 – REVISED JULY 2004 TYPICAL CHARACTERISTICS (3 V) (continued) INPUT BIAS AND OFFSET CURRENT vs CASE TEMPERATURE OUTPUT VOLTAGE vs LOAD RESISTANCE 9 I IB − Input Bias Current − µ A 1.75 1.5 1.25 1 100 IIB− 1000 580 5 560 IIB+ 4 540 IOS 3 500 1 480 460 −20 0 3 1 VO − Output Voltage − V Output 0.5 2.5 2 1.5 Gain = 2, RF = 249 Ω, RL = 499 Ω, VS = 3 V 30 40 1.25 −40 −20 0 50 60 2 1.75 1.5 2 1.75 1.5 Input 1.25 1 Output 0.75 0.75 0.5 0.5 14 Figure 45. 80 10 k 1 1k Gain = 2, RF = 249 Ω, VS = 3 V 100 10 1 0.1 0.01 100 k 1M 10 M f − Frequency − Hz Figure 44. 60 OUTPUT IMPEDANCE vs FREQUENCY 2.25 G = 2, RL = 499 Ω, RF = 249 Ω, VS = 3 V 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 t − Time − µs 40 Figure 43. 1.25 1 20 TC − Case Temperature − °C Z o − Output Impedance − Ω 1.5 20 1.5 1 80 2.25 V O − Output Voltage − V PP 2 V I − Input Voltage − V Input t − Time − ns 60 1.75 OVERDRIVE RECOVERY TIME 2.5 10 40 2 Figure 42. LARGE-SIGNAL TRANSIENT RESPONSE 0 20 2.25 TC − Case Temperature − °C Figure 41. 0.5 520 2 RL − Load Resistance −  1 600 6 0 −40 0.5 10 7 I 0.75 VS = 3 V 620 VI − Input Voltage − VPP VO − Output Voltage − V 2 2.5 640 VS = 3 V 8 VOS − Input Offset Voltage − mV VS = 3 V OS − Input Offset Current − nA 2.25 0 −10 INPUT OFFSET VOLTAGE vs CASE TEMPERATURE Figure 46. 100 M 1G THS4304 www.ti.com SLOS436A – MARCH 2004 – REVISED JULY 2004 APPLICATION INFORMATION For many years, high-performance analog design has required the generation of split power supply voltages, like ±15 V, ±8 V, and more recently ±5 V, in order to realize the full performance of the amplifiers available. Modern trends in high-performance analog are moving towards single-supply operation at 5 V, 3 V, and lower. This reduces power supply cost due to less voltages being generated and conserves energy in low power applications. It can also take a toll on available dynamic range, a valuable commodity in analog design, if the available voltage swing of the signal must also be reduced. Two key figures of merit for dynamic range are signal-to-noise ratio (SNR) and spurious free dynamic range (SFDR). SNR is simply the signal level divided by the noise: Signal SNR  Noise and SFDR is the signal level divided by the highest spur: Signal SFDR  Spur In an operational amplifier, reduced supply voltage typically results in reduced signal levels due to lower voltage available to operate the transistors within the amplifier. When noise and distortion remain constant, the result is a commensurate reduction in SNR and SFDR. To regain dynamic range, the process and the architecture used to make the operational amplifier must have superior noise and distortion performance with lower power supply overhead required for proper transistor operation. The THS4304 BiCom3 operational amplifier is just such a device. It is able to provide 2-Vpp signal swing at its output on a single 5-V supply with noise and distortion performance similar to the best 10-V operational amplifiers on the market today GENERAL APPLICATION The THS4304 is a traditional voltage-feedback topology with wideband performance up to 3 GHz at unity gain. Care must be taken to ensure that parasitic elements do not erode the phase margin. Capacitance at the output and inverting input, and resistance and inductance in the feedback path, can cause problems. To reduce parasitic capacitance, the ground plane should be removed from under the part. To reduce inductance in the feedback, the circuit traces should be kept as short and direct as possible. For best performance in non-inverting unity gain (G=+1V/V), it is recommended to use a wide trace directly between the output and inverting input. For a gain of +2V/V, it is recommended to use a 249-Ω feedback resistor. With good layout, this should keep the frequency response peaking to around 2 dB. This resistance is high enough to not load the output excessively, and the part is capable of driving 100-Ω load with good performance. Higher-value resistors can be used, with more peaking. For example, 499 Ω gives about 5 dB of peaking, and gives slightly better distortion performance with 100-Ω load. Lower value feedback resistors can also be used to reduce peaking, but degrades the distortion performance with heavy loads. Power supply bypass capacitors are required for proper operation. The most critical are 0.1-µF ceramic capacitors; these should be placed as close to the part as possible. Larger bulk capacitors can be shared with other components in the same area as the operational amplifier. HARMONIC DISTORTION For best second harmonic (HD2), it is important to use a single-point ground between the power supply bypass capacitors when using a split supply. It is also recommended to use a single ground or reference point for input termination and gain-setting resistors (R8 and R11 in the non-inverting circuit). It is recommended to follow the EVM layout closely in your application. 15 THS4304 www.ti.com SLOS436A – MARCH 2004 – REVISED JULY 2004 APPLICATION INFORMATION (continued) SOT-23 versus MSOP With light loading of 500-Ω and higher resistance, the THS4304 shows HD2 that is not dependant of package. With heavy output loading of 100 Ω, the THS4304 in SOT-23 package shows about 6 dB better HD2 performance versus the MSOP package. EVALUATION MODULES The THS4304 has two evaluation modules (EVMs) available. One is for the MSOP (DGK) package and the other for the SOT-23 (DBV) package. These provide a convenient platform for evaluating the performance of the part and building various different circuits. The full schematics, board layout, and bill of materials (as supplied) for the boards are shown in the following illustrations. −VS −VS VREF R3 J3 GND GND J4 +VS J6 FB1 FB2 C5 C1 C2 GND TP1 C3 R8 C8 −VS R7 C6* +VS R9 +VS U1 C7 R10 THS4304 4 3 5 1 R2 C9 J2 2 R11 R1 R12* −VS VREF *C6 − DGK EVM Only *R12 − DBV EVM Only Figure 47. EVM Full Schematic 16 +VS R6 +VS J1 J5 C4 THS4304 www.ti.com SLOS436A – MARCH 2004 – REVISED JULY 2004 APPLICATION INFORMATION (continued) EVM BILL OF MATERIALS THS4304 EVM (1) Item 1 Description SMD Size Reference Designator PCB Quantity Manufacturer's Part Number Distributor's Part Number FB1, FB2 2 (STEWARD) HI1206N800R-00 (DIGI-KEY) 240-1010-1-ND Bead, ferrite, 3-A, 80-Ω 1206 2 Capacitor, 3.3-µF, Ceramic 1206 C1, C2 2 (AVX) 1206YG335ZAT2A (GARRETT) 1206YG335ZAT2A 3 Capacitor, 0.1-µF, Ceramic 0603 C4, C5 2 (AVX) 0603YC104KAT2A (GARRETT) 0603YC104KAT2A 4 Open 0603 C3, C6 (2) 2 5 Open 0603 R1, R3, R6, R9, R12 (3) 5 6 Resistor, 0-Ω, 1/10-W, 1% 0603 C7. C8, C9, C10 4 (KOA) RK73Z1JTTD (GARRETT) RK73Z1JTTD 7 Resistor, 49.9-Ω, 1/10-W, 1% 0603 R2, R11 2 (KOA) RK73H1JLTD49R9F (GARRETT) RK73H1JLTD49R9F 8 Resistor, 249-Ω, 1/10-W, 1% 0603 R7, R8 2 (KOA) RK73H1JLTD2490F (GARRETT) RK73H1JLTD2490F 9 Jack, banana recepticle, 0.25-in. diameter hole J3, J4, J5, J6 4 (HH SMITH) 101 (NEWARK) 35F865 10 Test point, black 11 Connector, edge, SMA PCB jack 12 Integrated Circuit, THS4304 13 TP1 1 (KEYSTONE) 5001 (DIGI-KEY) 5001K-ND J1, J2 2 (JOHNSON) 142-0701-801 (NEWARK) 90F2624 U1 1 (TI) THS4304DGK, or (TI) THS4304DBV Standoff, 4-40 HEX, 0.625-in. Length 4 (KEYSTONE) 1808 14 Screw, Phillips, 4-40, 0.250-in. 4 SHR-0440-016-SN 15 Board, printed-circuit 1 (TI) THS4304DGK ENG A, or (TI) THS4304DBV ENG A (1) (2) (3) NEWARK) 89F1934 NOTE: All items are designated for both the DBV and DGK EVMs unless otherwise noted. C6 used on DGK EVM only. R12 used on DBV EVM only. 17 THS4304 SLOS436A – MARCH 2004 – REVISED JULY 2004 18 www.ti.com Figure 48. THS4304DGK EVM Layout Top and L2 Figure 49. THS4304DGK EVM Layout Bottom and L3 Figure 50. THS4304DBV EVM Layout Top and L2 Figure 51. THS4304DBV EVM Layout Bottom and L3 THS4304 www.ti.com SLOS436A – MARCH 2004 – REVISED JULY 2004 NON-INVERTING GAIN WITH SPLIT SUPPLY The following schematic shows how to configure the operational amplifier for non-inverting gain with split power supply (± 2.5V). This is how the EVM is supplied from TI. This configuration is convenient for test purposes because most signal generators and analyzer are designed to use ground-referenced signals by default. Note the input and output provides 50-Ω termination. −VS −VS C5 0.1 F C8 R8 R7 0 249  249  GND J3 GND J4 +VS J6 FB1 J5 FB2 C1 3.3 F C2 3.3 F +VS C4 0.1 F GND TP1 +VS J1 4 C7 R10 0 0 R11 49.9  U1 5 3 1 2 THS4304DBV R2 C9 49.9  0 J2 −VS Figure 52. Non-Inverting Gain with Split Power Supply 19 THS4304 www.ti.com SLOS436A – MARCH 2004 – REVISED JULY 2004 INVERTING GAIN WITH SPLIT POWER SUPPLY The following schematic shows how to configure the operational amplifier for inverting gain of 1 (–1 V/V) with split power supply (±2.5 V). Note the input and output provides 50-Ω termination for convenient interface to common test equipment. −VS −VS C5 0.1 F R7 GND J3 J4 C7 R9 0 221  J6 C1 3.3 F GND TP1 +VS 44 3 R1 124  − + 5 22 11 THS4304DBV R2 C9 49.9  0 J2 −VS C8 0 Figure 53. Inverting Gain with Split Power Supply 20 J5 C2 3.3 F U1 R11 61.9  +VS FB2 FB1 249  J1 GND +VS C4 0.1 F THS4304 www.ti.com SLOS436A – MARCH 2004 – REVISED JULY 2004 NON-INVERTING SINGLE-SUPPLY OPERATION The THS4304 EVM can easily be configured for single 5-V supply operation, as shown in the following schematic, with no change in performance. This circuit passes dc signals at the input, so care must be taken to reference (or bias) the input signal to mid-supply. If dc operation is not required, the amplifier can be ac coupled by inserting a capacitor in series with the input (C7) and output (C9). VREF R3 R6 10 k 10 k +VS −VS GND GND J3 J4 J6 +VS J5 +VS FB2 NC C8 R8 R7 0.1 F 249  249  C2 3.3 F GND C4 0.1 F TP1 +VS J1 C7 R10 0 0 44 33 − + R1 49.9  U1 55 22 11 THS4304DBV R2 C9 49.9  0 J2 C5  VREF Figure 54. Non-Inverting 5-V Single-Supply Amplifier DIFFERENTIAL ADC DRIVE AMPLIFIER The circuit shown in Figure 54 is adapted as shown in Figure 55 to provide a high-performance differential amplifier drive circuit for use with high-performance ADCs, like the ADS5500 (14-bit 125-MSP ADC). For testing purposes, the circuit uses a transformer to convert the signal from a single-ended source to differential. If the input signal source in your application is differential and biased to mid-rail, no transformer is required. The circuit employs two amplifiers to provide a differential signal path to the ADS5500. A resistor divider (two 10-kΩ resistors) is used to obtain a mid-supply reference voltage of 2.5 V (VREF) (the same as shown in the single-supply circuit of Figure 54). Applying this voltage to the one side of RG and to the positive input of the operational amplifier (via the center-tap of the transformer) sets the input and output common-mode voltage of the operational amplifiers to mid-rail to optimize their performance. The ADS5500 requires an input common-mode voltage of 1.5 V. Due to the mismatch in required common-mode voltage, the signal is ac coupled from the amplifier output, via the two 1-nF capacitors, to the input of the ADC. The CM voltage of the ADS5500 is used to bias the ADC input to the required voltage, via the 1-kΩ resistors. Note: 100-µA common-mode current is drawn by the ADS5500 input stage (at 125 MSPS). This causes a 100-mV shift in the input common-mode voltage, which does not impact the performance when driving the input to –1 dB of full scale. To offset this effect, a voltage divider from the power supply can be used to derive the input common-mode voltage reference. Because the operational amplifiers are configured as non-inverting, the inputs are high impedance. This is particularly useful when interfacing to a high-impedance source. In this situation, the amplifiers provide impedance matching and amplification of the signal. The SFDR performance of the circuit is shown in the following graph (see Figure 56) and provides for full performance from the ADS5500 to 40 MHz. 21 THS4304 www.ti.com SLOS436A – MARCH 2004 – REVISED JULY 2004 The differential topology employed in this circuit provides for significant suppression of the 2nd-order harmonic distortion of the amplifiers. This, along with the superior 3rd-order harmonic distortion performance of the amplifiers, results in the SFDR performance of the circuit (at frequencies up to 40 MHz) being set by higher-order harmonics generated by the sampling process of the ADS5500. The amplifier circuit (with resistor divider for bias voltage generation) requires a total of 185 mW of power from a single 5-V power supply. +5 V 10 k  V REF (= 2 .5V ) RG 0.1 F 10 k  RF V REF +5V + 3 .3 VA +3 .3 VD THS4304 1 :1 100  V IN V REF 49 .9  From 50  source 1 nF 1k  CM +5V A IN+ ADS 5500 1k  A IN− CM THS4304 100  1 nF CM 0. 1 F V REF RG RF Figure 55. Differential ADC Drive Amplifier Circuit 90 Combined THS4304 and ADS5500 SFDR dB 85 80 G = 10 dB, −1 dBFS, RF = 249 Ω, RG = 115 Ω, SNR = 69.6, FS = 125 MSPS 75 10 20 30 40 50 f − Frequency − MHz Figure 56. SFDR Performance versus Frequency – THS4304 Driving ADS5500 22 D A PACKAGE OPTION ADDENDUM www.ti.com 10-Dec-2020 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) (4/5) (6) THS4304D ACTIVE SOIC D 8 75 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 4304 THS4304DBVR ACTIVE SOT-23 DBV 5 3000 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 AKW THS4304DBVT ACTIVE SOT-23 DBV 5 250 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 AKW THS4304DG4 ACTIVE SOIC D 8 75 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 4304 THS4304DGK ACTIVE VSSOP DGK 8 80 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 AKU THS4304DGKR ACTIVE VSSOP DGK 8 2500 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 AKU (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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