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Sample & Buy Product Folder Support & Community Tools & Software Technical Documents INA282, INA283, INA284, INA285, INA286 SBOS485C – NOVEMBER 2009 – REVISED MAY 2015 INA28x High-Accuracy, Wide Common-Mode Range, Bidirectional Current Shunt Monitors, Zero-Drift Series 1 Features 3 Description • • • • The INA28x family includes the INA282, INA283, INA284, INA285, and INA286 devices. These devices are voltage output current shunt monitors that can sense drops across shunts at common-mode voltages from –14 V to +80 V, independent of the supply voltage. The low offset of the zero-drift architecture enables current sensing with maximum drops across the shunt as low as 10 mV full-scale. 1 • • Wide Common-Mode Range: –14 V to +80 V Offset Voltage: ±20 μV CMRR: 140 dB Accuracy: – ±1.4% Gain Error (Max) – 0.3 μV/°C Offset Drift – 0.005%/°C Gain Drift (Max) Available Gains: – 50 V/V: INA282 – 100 V/V: INA286 – 200 V/V: INA283 – 500 V/V: INA284 – 1000 V/V: INA285 Quiescent Current: 900 μA (Max) These current sense amplifiers operate from a single +2.7-V to +18-V supply, drawing a maximum of 900 μA of supply current. These devices are specified over the extended operating temperature range of –40°C to +125°C, and offered in SOIC-8 and VSSOP-8 packages. Device Information(1) ORDER NUMBER INA28x 2 Applications • • • • PACKAGE BODY SIZE (NOM) SOIC (8) 4.90 mm x 3.91 mm VSSOP (8) 3.00 mm x 3.00 mm (1) For all available packages, see the package option addendum at the end of the datasheet. Telecom Equipment Automotive Power Management Solar Inverters Detailed Block Diagram Bus Supply ±14 V to +80 V Load +IN ‡1 2.7 V to 18 V V+ ±IN ‡2 ‡2 ‡2 ‡1 ‡2 ‡1 ‡1 Zer‡Drift GAIN PRODUCT 50 V/V 100 V/V INA282 INA286 200 V/V INA283 500 V/V 1000 V/V INA284 INA285 OUT Output 33.3 k  REF2 33.3 k  REF1 GND 1 An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. PRODUCTION DATA. INA282, INA283, INA284, INA285, INA286 SBOS485C – NOVEMBER 2009 – REVISED MAY 2015 www.ti.com Table of Contents 1 2 3 4 5 6 7 Features .................................................................. Applications ........................................................... Description ............................................................. Revision History..................................................... Pin Configuration and Functions ......................... Specifications......................................................... 1 1 1 2 3 4 6.1 6.2 6.3 6.4 6.5 6.6 4 4 4 4 5 7 Absolute Maximum Ratings ..................................... ESD Ratings.............................................................. Recommended Operating Conditions....................... Thermal Information .................................................. Electrical Characteristics........................................... Typical Characteristics .............................................. Detailed Description ............................................ 13 7.1 Overview ................................................................. 13 7.2 Functional Block Diagram ....................................... 13 7.3 Feature Description................................................. 14 7.4 Device Functional Modes........................................ 15 8 Applications and Implementation ...................... 20 8.1 Application Information............................................ 20 8.2 Typical Applications ................................................ 21 9 Power Supply Recommendations...................... 25 10 Layout................................................................... 25 10.1 Layout Guidelines ................................................. 25 10.2 Layout Example .................................................... 25 11 Device and Documentation Support ................. 26 11.1 11.2 11.3 11.4 11.5 Related Links ........................................................ Community Resources.......................................... Trademarks ........................................................... Electrostatic Discharge Caution ............................ Glossary ................................................................ 26 26 26 26 26 12 Mechanical, Packaging, and Orderable Information ........................................................... 26 4 Revision History NOTE: Page numbers for previous revisions may differ from page numbers in the current version. Changes from Revision B (September 2012) to Revision C Page • Added DGK (VSSOP) package to data sheet ........................................................................................................................ 1 • Changed front page diagram.................................................................................................................................................. 1 • Added ESD Ratings and Recommended Operating Conditions tables, and Feature Description, Application and Implementation, Power Supply Recommendations ,Layout , Device and Documentation Support , and Mechanical, Packaging, and Orderable Information sections..................................................................................................................... 4 • Deleted Machine Model ESD rating ....................................................................................................................................... 4 • Changed HBM ESD rating from ±3000 V to ±2000 V ............................................................................................................ 4 • Added RVRR as symbol for reference voltage rejection ratio ............................................................................................... 5 • Changed order of figures in Typical Characteristics section .................................................................................................. 7 • Changed Figure 16................................................................................................................................................................. 8 • Changed VDRIVE condition in Figure 19 and Figure 20 ........................................................................................................... 9 • Added functional block diagram ........................................................................................................................................... 13 • Changed Figure 32 and Figure 33 ....................................................................................................................................... 15 • Changed Figure 34 and Figure 35 ....................................................................................................................................... 16 • Changed Figure 36 and Figure 37 ....................................................................................................................................... 17 • Changed Figure 38............................................................................................................................................................... 18 • Changed Reference Common-Mode Rejection to Reference Voltage Rejection Ratio ....................................................... 18 • Changed RCMR to RVRR in Table 1 and Table 2 ................................................................................................................. 19 • Changed Figure 39 .............................................................................................................................................................. 20 • Changed Figure 40 .............................................................................................................................................................. 21 • Changed Figure 42 .............................................................................................................................................................. 23 Changes from Revision A (July 2010) to Revision B • 2 Page Changed devices from product preview to production data. .................................................................................................. 1 Submit Documentation Feedback Copyright © 2009–2015, Texas Instruments Incorporated Product Folder Links: INA282 INA283 INA284 INA285 INA286 INA282, INA283, INA284, INA285, INA286 www.ti.com SBOS485C – NOVEMBER 2009 – REVISED MAY 2015 5 Pin Configuration and Functions D and DGK Packages 8-Pin SOIC and 8-Pin VSSOP Top View -IN 1 8 +IN GND 2 7 REF1 REF2 3 6 V+ (1) 4 5 OUT NC (1) NC: This pin is not internally connected. Leave the NC pin floating or connect this pin to GND. Pin Descriptions PIN NO. NAME I/O 1 –IN Analog input 2 GND Analog 3 REF2 Analog input 4 NC — 5 OUT DESCRIPTION Connect this pin to load side of shunt resistor. Ground Reference voltage, 0 V to V+. See Reference Pin Connection Options section for connection options. This pin is not internally connected. Either float or connect this pin to GND. Analog output Output voltage 6 V+ Analog 7 REF1 Analog input Power supply, 2.7 V to 18 V Reference voltage, 0 V to V+. See Reference Pin Connection Options section for connection options. 8 +IN Analog input Connect this pin to supply side of shunt resistor. Copyright © 2009–2015, Texas Instruments Incorporated Submit Documentation Feedback Product Folder Links: INA282 INA283 INA284 INA285 INA286 3 INA282, INA283, INA284, INA285, INA286 SBOS485C – NOVEMBER 2009 – REVISED MAY 2015 www.ti.com 6 Specifications 6.1 Absolute Maximum Ratings Over operating free-air temperature range (unless otherwise noted) (1) MIN Supply voltage, V+ Analog inputs, V+IN, V–IN (2) Differential (V+IN) – (V–IN) (3) +5 V +80 V GND – 0.3 (V+) + 0.3 V Junction temperature Storage temperature range, Tstg (2) (3) V –5 Input current into any pin (1) UNIT 18 –14 Common-mode REF1, REF2, OUT MAX –65 5 mA 150 °C +150 °C Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, which do not imply functional operation of the device at these or any other conditions beyond those indicated under Recommended Operating Conditions. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. V+IN and V–IN are the voltages at the +IN and –IN pins, respectively. Input voltages must not exceed common-mode rating. 6.2 ESD Ratings VALUE V(ESD) (1) (2) Human-body model (HBM), per ANSI/ESDA/JEDEC JS-001 Electrostatic discharge (1) ±2000 Charged-device model (CDM), per JEDEC specification JESD22-C101 (2) ±1000 UNIT V JEDEC document JEP155 states that 500-V HBM allows safe manufacturing with a standard ESD control process. JEDEC document JEP157 states that 250-V CDM allows safe manufacturing with a standard ESD control process. 6.3 Recommended Operating Conditions over operating free-air temperature range (unless otherwise noted) MIN VCM Common-mode input voltage V+ Operating supply voltage TA Operating free-air temperature NOM MAX 12 UNIT V 5 V –40 +125 °C 6.4 Thermal Information INA28x THERMAL METRIC (1) D (SOIC) DGK (VSSOP) UNIT 8 PINS 8 PINS RθJA Junction-to-ambient thermal resistance 134.9 164.1 °C/W RθJC(top) Junction-to-case (top) thermal resistance 72.9 56.4 °C/W RθJB Junction-to-board thermal resistance 61.3 85.0 °C/W ψJT Junction-to-top characterization parameter 18.9 6.5 °C/W ψJB Junction-to-board characterization parameter 54.3 83.3 °C/W RθJC(bot) Junction-to-case (bottom) thermal resistance n/a n/a °C/W (1) 4 For more information about traditional and new thermal metrics, see the Semiconductor and IC Package Thermal Metrics application report, SPRA953. Submit Documentation Feedback Copyright © 2009–2015, Texas Instruments Incorporated Product Folder Links: INA282 INA283 INA284 INA285 INA286 INA282, INA283, INA284, INA285, INA286 www.ti.com SBOS485C – NOVEMBER 2009 – REVISED MAY 2015 6.5 Electrical Characteristics At TA = 25°C, V+ = 5 V, V+IN = 12 V, VREF1 = VREF2 = 2.048 V referenced to GND, and VSENSE = V+IN – V–IN (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT INPUT Offset voltage, RTI (1) VSENSE = 0 mV ±20 ±70 µV dVOS/dT vs temperature VSENSE = 0 mV, TA = –40°C to +125°C ±0.3 ±1.5 µV/°C PSRR vs power supply V+ = +2.7 V to +18 V, VSENSE = 0 mV 3 VCM Common-mode input range TA = –40°C to +125°C –14 CMRR Common-mode rejection ratio V+IN = –14 V to +80 V, VSENSE = 0 mV, TA = –40°C to +125°C 120 IB Input bias current per pin (2) IOS Input offset current VOS μV/V +80 V 140 dB VSENSE = 0 mV 25 µA VSENSE = 0 mV 1 µA 6 kΩ 1 V/V Differential input impedance REFERENCE INPUTS Reference input gain Reference input voltage range (3) 0 VGND + 9 Divider accuracy (4) INA282 INA283 RVRR Reference voltage rejection ratio (VREF1 = VREF2 = 40 mV to 9 V, V+ = 18 V) INA284 INA285 INA286 ±0.2% ±0.5% ±25 ±75 TA = –40°C to +125°C 0.055 TA = –40°C to +125°C 0.040 ±13 ±6 TA = –40°C to +125°C TA = –40°C to +125°C 0.010 TA = –40°C to +125°C 0.040 ±17 µV/V µV/V/°C ±30 µV/V µV/V/°C ±25 0.015 ±4 V µV/V µV/V/°C ±10 µV/V µV/V/°C ±45 µV/V µV/V/°C GAIN (5) (GND + 0.5 V ≤ VOUT ≤ (V+) – 0.5 V; VREF1 = VREF2 = (V+) / 2 for all devices) G Gain INA282, V+ = 5 V 50 V/V INA283, V+ = 5 V 200 V/V INA284, V+ = 12 V 500 V/V INA285, V+ = 12 V 1000 V/V INA286, V+ = 5 V Gain error (1) (2) (3) (4) (5) 100 V/V INA282, INA283, INA286 ±0.4% ±1.4% INA284, INA285 ±0.4% ±1.6% TA = –40°C to +125°C 0.0008 0.005 %/°C RTI = referred-to-input. See typical characteristic graph Figure 7. The average of the voltage on pins REF1 and REF2 must be between VGND and the lesser of (VGND + 9 V) and V+. Reference divider accuracy specifies the match between the reference divider resistors using the configuration in Figure 36. See typical characteristic graph Figure 12. Copyright © 2009–2015, Texas Instruments Incorporated Submit Documentation Feedback Product Folder Links: INA282 INA283 INA284 INA285 INA286 5 INA282, INA283, INA284, INA285, INA286 SBOS485C – NOVEMBER 2009 – REVISED MAY 2015 www.ti.com Electrical Characteristics (continued) At TA = 25°C, V+ = 5 V, V+IN = 12 V, VREF1 = VREF2 = 2.048 V referenced to GND, and VSENSE = V+IN – V–IN (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT OUTPUT Nonlinearity error ±0.01% Output impedance Maximum capacitive load No sustained oscillation 1.5 Ω 1 nF VOLTAGE OUTPUT (6) Swing to V+ power-supply rail V+ = 5 V, RLOAD = 10 kΩ to GND, TA = –40°C to +125°C Swing to GND RLOAD = 10 kΩ to GND, TA = –40°C to +125°C (V+) – 0.17 (V+) – 0.4 V GND + 0.015 GND + 0.04 V FREQUENCY RESPONSE BW Effective bandwidth (7) NOISE, RTI INA282 10 kHz INA283 10 kHz INA284 4 kHz INA285 2 kHz INA286 10 kHz 110 nV/√Hz (1) Voltage noise density 1 kHz POWER SUPPLY VS Specified voltage range IQ Quiescent current (6) (7) 6 TA = –40°C to +125°C 2.7 600 18 V 900 µA See typical characteristic graphs Figure 16 through Figure 18. See typical characteristic graph Figure 1 and the Effective Bandwidth section. Submit Documentation Feedback Copyright © 2009–2015, Texas Instruments Incorporated Product Folder Links: INA282 INA283 INA284 INA285 INA286 INA282, INA283, INA284, INA285, INA286 www.ti.com SBOS485C – NOVEMBER 2009 – REVISED MAY 2015 6.6 Typical Characteristics At TA = 25°C, V+ = 5 V, V+IN = 12 V, VREF1 = VREF2 = 2.048 V referenced to GND, and VSENSE = V+IN – V–IN (unless otherwise noted) 60 Power-Supply Rejection Ratio (dB) 120 50 Gain (dB) 40 30 20 10 INA282 (50V/V) INA285 (1kV/V) INA284 (500V/V) INA283 (200V/V) INA286 (100V/V) 0 -10 -20 110 100 90 80 70 60 50 40 30 20 10 100 1k 10k 100k 1M 100 1k 10k Frequency (Hz) Figure 1. Gain vs Frequency 1M Figure 2. INA282 PSRR (RTI) vs Frequency 0.1 150 140 VOS, Referred-to-Input (V) Common-Mode Rejectio Ratio (dB) 100k Frequency (Hz) 130 120 110 100 90 0.01 0.001 0.0001 0.00001 80 0.000001 70 1 10 100 1k 10k 1k 100k 10k 100k 1M VCM Slew Rate (V/sec) Frequency (Hz) Figure 4. INA282 Common-Mode Slew Rate Induced Offset Figure 3. INA284 Common-Mode Rejection Ratio (RTI) 1k 0.06 VSENSE = -50mV to +50mV 0.04 Nonlinearity (%) ROUT (W) 100 10 0.02 0 V+ = 18V -0.02 1 V+ = 3.5V -0.04 0.1 -0.06 10 100 1k 10k 100k 1M 0 3 6 Frequency (Hz) Figure 5. INA286 Output Impedance vs Frequency Copyright © 2009–2015, Texas Instruments Incorporated 9 12 15 18 VOUT (V) Figure 6. INA282 Typical Nonlinearity vs Output Voltage Submit Documentation Feedback Product Folder Links: INA282 INA283 INA284 INA285 INA286 7 INA282, INA283, INA284, INA285, INA286 SBOS485C – NOVEMBER 2009 – REVISED MAY 2015 www.ti.com Typical Characteristics (continued) At TA = 25°C, V+ = 5 V, V+IN = 12 V, VREF1 = VREF2 = 2.048 V referenced to GND, and VSENSE = V+IN – V–IN (unless otherwise noted) 900 30 850 V+ = 5V V+ = 2.7V Quiescent Current (mA) +IN Bias Current (mA) 20 10 V+ = 18V 0 -10 -20 -30 800 750 V+ = 18V 700 650 600 V+ = 5V 550 500 V+ = 2.7V 450 400 -40 -20 -10 0 10 20 30 40 50 60 70 80 0 -20 20 Common-Mode Voltage (V) Figure 7. INA283 +IN Bias Current vs Common-Mode Voltage Common-Mode Rejection Ratio (dB) Quiescent Current (mA) 80 170 800 700 600 500 400 300 200 100 160 V+ = 12V 150 140 130 120 V+ = 5V 110 100 90 80 0 4 2 6 8 10 12 14 16 -75 18 -50 -25 0 25 50 75 100 125 150 Temperature (°C) Supply Voltage (V) Figure 10. Common-Mode Rejection Ratio vs Temperature Figure 9. Quiescent Current vs Supply Voltage 980 1.0 0.8 880 V+ = 18V 780 V+ = 5V 0.6 Deviation in Gain (%) Quiescent Current (mA) 60 Figure 8. INA283 Quiescent Current vs Common-Mode Voltage 900 680 580 480 380 V+ = 2.7V 280 0.4 V+ = 5V 0.2 0 -0.2 V+ = 12V -0.4 -0.6 180 -0.8 -1.0 80 -75 -50 -25 0 25 50 75 100 125 Temperature (°C) Figure 11. Quiescent Current vs Temperature 8 40 Common-Mode Voltage (V) Submit Documentation Feedback 150 -75 -50 -25 0 25 50 75 100 125 150 Temperature (°C) Figure 12. Deviation in Gain vs Temperature Copyright © 2009–2015, Texas Instruments Incorporated Product Folder Links: INA282 INA283 INA284 INA285 INA286 INA282, INA283, INA284, INA285, INA286 www.ti.com SBOS485C – NOVEMBER 2009 – REVISED MAY 2015 Typical Characteristics (continued) At TA = 25°C, V+ = 5 V, V+IN = 12 V, VREF1 = VREF2 = 2.048 V referenced to GND, and VSENSE = V+IN – V–IN (unless otherwise noted) Voltage Noise, RTI (200nV/div) 0 +IN Bias Current (mA) -5 -10 V+ = 2.7V -15 -20 V+ = 5V -25 V+ = 18V -30 -35 VCM = 0V -40 -75 -50 0 -25 25 75 50 100 125 Time (1s/div) 150 Temperature (°C) Figure 14. INA282 0.1-Hz to 10-Hz Voltage Noise, RTI 0.12 5.5 0.11 5.0 0.10 4.5 0.09 4.0 0.08 3.5 0.07 3.0 0.06 100k V+ 18V 5V 2.7V Output Voltage Swing (V) (V+) – 2 Voltage Noise, RTI (mV/ÖHz) Voltage Noise, RTO (mV/ÖHz) Figure 13. +IN Bias Current vs Temperature 6.0 (V+) – 4 (V+) – 6 (V+) – 8 GND + 8 GND + 6 GND + 4 GND + 2 100 1k 10k GND 0 1 2 4 3 Frequency (Hz) Figure 15. INA282 Voltage Noise vs Frequency 6 7 8 9 10 Figure 16. INA284 Output Voltage Swing vs Output Current 800 400 700 +125°C 600 350 +25°C +85°C Swing to Ground (mV) Swing to Rail (mV) 5 IOUT (mA) 500 400 -40°C 300 200 250 +125°C 200 150 100 50 +25°C 0 0 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 IOUT, Sourcing (mA) Figure 17. INA283 Swing to Rail vs Output Current Copyright © 2009–2015, Texas Instruments Incorporated 2.7V Swing 5V Swing 18V Swing +85°C 2.7V Swing 5V Swing 100 300 0 -40°C 0.5 1.0 1.5 2.0 2.5 IOUT, Sinking (mA) Figure 18. INA283 Swing to Ground vs Output Current Submit Documentation Feedback Product Folder Links: INA282 INA283 INA284 INA285 INA286 9 INA282, INA283, INA284, INA285, INA286 SBOS485C – NOVEMBER 2009 – REVISED MAY 2015 www.ti.com Typical Characteristics (continued) At TA = 25°C, V+ = 5 V, V+IN = 12 V, VREF1 = VREF2 = 2.048 V referenced to GND, and VSENSE = V+IN – V–IN (unless otherwise noted) VREF = GND, VSENSE = 50mV, RLOAD = 10kW, CLOAD = 10pF CLOAD = 10pF VREF = GND VSENSE = 50mV RLOAD = 10kW 5V/div 5V/div VOUT 500mV/div 500mV/div VOUT V+ V+ 250ms/div 25ms/div Figure 20. Start-Up Transient Response 500mV/div 500mV/div Figure 19. Start-Up Transient Response VOUT VOUT 5V/div 5V/div VCM VCM 2.5ms/div 2.5ms/div Figure 22. 12-V Common-Mode Step Response 500mV/div 500mV/div Figure 21. 12-V Common-Mode Step Response VOUT VOUT 5V/div 5V/div VCM VCM 2.5ms/div 2.5ms/div Figure 23. 12-V Common-Mode Step Response 10 Submit Documentation Feedback Figure 24. 12-V Common-Mode Step Response Copyright © 2009–2015, Texas Instruments Incorporated Product Folder Links: INA282 INA283 INA284 INA285 INA286 INA282, INA283, INA284, INA285, INA286 www.ti.com SBOS485C – NOVEMBER 2009 – REVISED MAY 2015 Typical Characteristics (continued) VOUT 10V/div VOUT VCM 10V/div 500mV/div 500mV/div At TA = 25°C, V+ = 5 V, V+IN = 12 V, VREF1 = VREF2 = 2.048 V referenced to GND, and VSENSE = V+IN – V–IN (unless otherwise noted) VCM 5ms/div 5ms/div Figure 26. 50-V Common-Mode Step Response 20mV/div 100mV/div Figure 25. 50-V Common-Mode Step Response 10ms/div 10ms/div Figure 28. 500-mV Step Response 5V/div 1V/div Figure 27. 100-mV Step Response 25ms/div Figure 29. 4-V Step Response Copyright © 2009–2015, Texas Instruments Incorporated 25ms/div Figure 30. 17-V Step Response Submit Documentation Feedback Product Folder Links: INA282 INA283 INA284 INA285 INA286 11 INA282, INA283, INA284, INA285, INA286 SBOS485C – NOVEMBER 2009 – REVISED MAY 2015 www.ti.com Typical Characteristics (continued) At TA = 25°C, V+ = 5 V, V+IN = 12 V, VREF1 = VREF2 = 2.048 V referenced to GND, and VSENSE = V+IN – V–IN (unless otherwise noted) Input Drive (1V to 0V) 1V/div VOUT (5V to midsupply) 25ms/div Figure 31. Input Overload 12 Submit Documentation Feedback Copyright © 2009–2015, Texas Instruments Incorporated Product Folder Links: INA282 INA283 INA284 INA285 INA286 INA282, INA283, INA284, INA285, INA286 www.ti.com SBOS485C – NOVEMBER 2009 – REVISED MAY 2015 7 Detailed Description 7.1 Overview The INA28x family of voltage output current-sensing amplifiers are specifically designed to accurately measure voltages developed across current-sensing resistors on common-mode voltages that far exceed the supply voltage powering the devices. This family features a common-mode range that extends 14 V below the negative supply rail, as well as up to 80 V, allowing for either low-side or high-side current sensing while the device is powered from supply voltages as low as 2.7 V. The zero-drift topology enables high-precision measurements with maximum input offset voltages as low as 70 µV with a maximum temperature contribution of 1.5 µV/°C over the full temperature range of –40°C to +125°C. 7.2 Functional Block Diagram V+ ±IN ± ± + + OUT REF2 +IN REF1 GND Copyright © 2009–2015, Texas Instruments Incorporated Submit Documentation Feedback Product Folder Links: INA282 INA283 INA284 INA285 INA286 13 INA282, INA283, INA284, INA285, INA286 SBOS485C – NOVEMBER 2009 – REVISED MAY 2015 www.ti.com 7.3 Feature Description 7.3.1 Selecting RS The zero-drift offset performance of the INA28x family offers several benefits. Most often, the primary advantage of the low offset characteristic enables lower full-scale drops across the shunt. For example, nonzero-drift, current-shunt monitors typically require a full-scale range of 100 mV. The INA28x family gives equivalent accuracy at a full-scale range on the order of 10 mV. This accuracy reduces shunt dissipation by an order of magnitude, with many additional benefits. Alternatively, applications that must measure current over a wide dynamic range can take advantage of the low offset on the low end of the measurement. Most often, these applications can use the lower gains of the INA282, INA286, or INA283 to accommodate larger shunt drops on the upper end of the scale. For instance, an INA282 operating on a 3.3-V supply can easily handle a full-scale shunt drop of 55 mV, with only 70 μV of offset. 7.3.2 Effective Bandwidth The extremely high dc CMRR of the INA28x family results from the switched-capacitor input structure. Because of this architecture, the INA28x exhibits discrete time-system behaviors, as illustrated in the Gain vs Frequency curve of Figure 1 and the Step Response curves of Figure 21 through Figure 28. The response to a step input depends in part on the phase of the internal INA28x clock when the input step occurs. It is possible to overload the input amplifier with a rapid change in input common-mode voltage (see Figure 4). Errors as a result of common-mode voltage steps or overload situations typically disappear within 15 μs after the disturbance is removed. 7.3.3 Transient Protection The –14-V to +80-V common-mode range of the INA28x family is ideal for withstanding automotive fault conditions that range from 12-V battery reversal up to 80-V transients; no additional protective components are needed up to those levels. In the event that the INA28x family is exposed to transients on the inputs in excess of its ratings, then external transient absorption with semiconductor transient absorbers (Zener diodes or transorbs) are required. Use of metal-oxide varistors (MOVs) or voltage-dependent resistors (VDRs) is not recommended except when they are used in addition to a semiconductor transient absorber. Select a transient absorber that does not allow the INA28x family to be exposed to transients greater than 80 V (that is, allow for transient absorber tolerance, as well as additional voltage as a result of transient absorber dynamic impedance). Despite the use of internal zener-type electrostatic discharge (ESD) protection, the INA28x family does not lend itself to using external resistors in series with the inputs without degrading gain accuracy. 14 Submit Documentation Feedback Copyright © 2009–2015, Texas Instruments Incorporated Product Folder Links: INA282 INA283 INA284 INA285 INA286 INA282, INA283, INA284, INA285, INA286 www.ti.com SBOS485C – NOVEMBER 2009 – REVISED MAY 2015 7.4 Device Functional Modes 7.4.1 Reference Pin Connection Options Figure 32 illustrates a test circuit for reference-divider accuracy. The output of the INA28x family can be connected for unidirectional or bidirectional operation. Do not connect the REF1 pin or the REF2 pin to any voltage source lower than GND or higher than V+. The effective reference voltage (REF1 + REF2) / 2 must be 9 V or less. This parameter means that the V+ reference output connection shown in Figure 34 is not allowed for a V+ value greater than 9 V. However, the split-supply reference connection shown in Figure 36 is allowed for all values of V+ up to 18 V. V+ +IN V+ ±IN See Note (1) ± Input Stage OUT + REF2 REF1 GND (1) Reference divider accuracy is determined by measuring the output with the reference voltage applied to alternate reference resistors, and calculating a result where the amplifier offset is cancelled in the final measurement. Figure 32. Test Circuit For Reference Divider Accuracy 7.4.1.1 Unidirectional Operation Unidirectional operation allows the INA28x family to measure currents through a resistive shunt in one direction. In the case of unidirectional operation, set the output at the negative rail (near ground, and the most common connection) or at the positive rail (near V+) when the differential input is 0 V. The output moves to the opposite rail when a correct polarity differential input voltage is applied. The required polarity of the differential input depends on the output voltage setting. If the output is set at the positive rail, the input polarity must be negative to move the output down. If the output is set at ground, the polarity is positive to move the output up. The following sections describe how to configure the output for unidirectional operation. 7.4.1.1.1 Ground Referenced Output When using the INA28x family in ground referenced output mode, both reference inputs are connected to ground; this configuration takes the output to the negative rail when there is 0 V differential at the input (as Figure 33 shows). V+ +IN V+ ±IN Input Stage ± + OUT REF2 REF1 GND Figure 33. Ground Referenced Output Copyright © 2009–2015, Texas Instruments Incorporated Submit Documentation Feedback Product Folder Links: INA282 INA283 INA284 INA285 INA286 15 INA282, INA283, INA284, INA285, INA286 SBOS485C – NOVEMBER 2009 – REVISED MAY 2015 www.ti.com Device Functional Modes (continued) 7.4.1.1.2 V+ Referenced Output V+ referenced output mode is set when both reference pins are connected to the positive supply. This mode is typically used when a diagnostic scheme requires detection of the amplifier and the wiring before power is applied to the load (as shown in Figure 34). V+ +IN V+ ±IN ± Input Stage OUT + REF2 REF1 GND Figure 34. V+ Referenced Output 7.4.1.2 Bidirectional Operation Bidirectional operation allows the INA28x family to measure currents through a resistive shunt in two directions. In this case, the output can be set anywhere within the limits of what the reference inputs allow (that is, between 0 V to 9 V, but never to exceed the supply voltage). Typically, the reference inputs are set at half-scale for equal range in both directions. In some cases, however, the reference inputs are set at a voltage other than half-scale when the bidirectional current is nonsymmetrical. The quiescent output voltage is set by applying voltage or voltages to the reference inputs. REF1 and REF2 are connected to internal resistors that connect to an internal offset node. There is no operational difference between the pins. 7.4.1.2.1 External Reference Output Connecting both pins together and to a reference produces an output at the reference voltage when there is no differential input; this configuration is illustrated in Figure 35. The output moves down from the reference voltage when the input is negative relative to the –IN pin and up when the input is positive relative to the –IN pin. Note that this technique is the most accurate way to bias the output to a precise voltage. V+ +IN V+ ±IN Input Stage ± + OUT REF2 REF1 REF3020 2.048-V Reference GND Figure 35. External Reference Output 16 Submit Documentation Feedback Copyright © 2009–2015, Texas Instruments Incorporated Product Folder Links: INA282 INA283 INA284 INA285 INA286 INA282, INA283, INA284, INA285, INA286 www.ti.com SBOS485C – NOVEMBER 2009 – REVISED MAY 2015 Device Functional Modes (continued) 7.4.1.2.2 Splitting The Supply By connecting one reference pin to V+ and the other to the ground pin, the output is set at half of the supply when there is no differential input, as shown in Figure 36. This method creates a midscale offset that is ratiometric to the supply voltage; thus, if the supply increases or decreases, the output remains at half the supply. V+ +IN V+ ±IN ± Input Stage OUT + Output REF2 REF1 GND Figure 36. Split-Supply Output 7.4.1.2.3 Splitting an External Reference In this case, an external reference is divided by two with an accuracy of approximately 0.5% by connecting one REF pin to ground and the other REF pin to the reference (as Figure 37 illustrates). V+ +IN V+ ±IN Input Stage ± + OUT REF2 REF1 REF02 5-V Reference GND Figure 37. Split Reference Output 7.4.2 Shutdown While the INA28x family does not provide a shutdown pin, the quiescent current of 600 μA enables the device to be powered from the output of a logic gate. Take the gate low to shut down the INA28x family devices. 7.4.3 Extended Negative Common-Mode Range Using a negative power supply can extend the common-mode range 14 V more negative than the supply used. For instance, a –10-V supply allows up to a –24-V negative common-mode. Remember to keep the total voltage between the GND pin and V+ pin to less than 18 V. The positive common-mode decreases by the same amount. The reference input simplifies this type of operation because the output quiescent bias point is always based on the reference connections. Figure 38 shows a circuit configuration for common-mode ranges from –24 V to +70 V. Copyright © 2009–2015, Texas Instruments Incorporated Submit Documentation Feedback Product Folder Links: INA282 INA283 INA284 INA285 INA286 17 INA282, INA283, INA284, INA285, INA286 SBOS485C – NOVEMBER 2009 – REVISED MAY 2015 www.ti.com Device Functional Modes (continued) V+ = 5 V Bus Supply ±24 V to +70 V Load +IN V+ ±IN Input Stage ± + OUT Output REF2 REF1 See Note (1) GND Connect to ±10 V (1) Connect the REF pins as desired; however, they cannot exceed 9 V above the GND pin voltage. Figure 38. Circuit Configuration for Common-Mode Ranges from –24 V to +70 V 7.4.4 Calculating Total Error The electrical specifications for the INA28x family of devices include the typical individual errors terms such as gain error, offset error, and nonlinearity error. Total error including all of these individual error components is not specified in the Electrical Characteristics table. In order to accurately calculate the expected error of the device, the operating conditions of the device must first be known. Some current shunt monitors specify a total error in the product data sheet. However, this total error term is accurate under only one particular set of operating conditions. Specifying the total error at this one point has little practical value because any deviation from these specific operating conditions no longer yields the same total error value. This section discusses the individual error sources, with information on how to apply them in order to calculate the total error value for the device under any normal operating conditions. The typical error sources that have the largest impact on the total error of the device are input offset voltage, common-mode rejection ratio, gain error, and nonlinearity error. For the INA28x, an additional error source referred to as reference voltage rejection ratio is also included in the total error value. The nonlinearity error of the INA28x is relatively low compared to the gain error specification. This low error results in a gain error that can be expected to be relatively constant throughout the linear input range of the device. While the gain error remains constant across the linear input range of the device, the error associated with the input offset voltage does not. As the differential input voltage developed across a shunt resistor at the input of the INA28x decreases, the inherent input offset voltage of the device becomes a larger percentage of the measured input signal resulting in an increase in error in the measurement. This varying error is present among all current shunt monitors, given the input offset voltage ratio to the voltage being sensed by the device. The relatively low input offset voltages present in the INA28x devices limit the amount of contribution the offset voltage has on the total error term. The term reference voltage rejection ratio refers to the amount of error induced by applying a reference voltage to the INA28x device that deviates from the inherent bias voltage present at the output of the first stage of the device. The output of the switched-capacitor network and first-stage amplifier has an inherent bias voltage of approximately 2.048 V. Applying a reference voltage of 2.048 V to the INA28x reference pins results in no additional error term contribution. Applying a voltage to the reference pins that differs from 2.048 V creates a voltage potential in the internal difference amplifier, resulting in additional current flowing through the resistor network. As a result of resistor tolerances, this additional current flow causes additional error at the output because of resistor mismatches. Additionally, as a result of resistor tolerances, this additional current flow causes additional error at the output based on the common-mode rejection ratio of the output stage amplifier. This error term is referred back to the input of the device as additional input offset voltage. Increasing the difference between the 2.048 V internal bias and the external reference voltage results in a higher input offset voltage. Also, as the error at the output is referred back to the input, there is a larger impact on the input-referred offset, VOS, for the lower-gain versions of the device. 18 Submit Documentation Feedback Copyright © 2009–2015, Texas Instruments Incorporated Product Folder Links: INA282 INA283 INA284 INA285 INA286 INA282, INA283, INA284, INA285, INA286 www.ti.com SBOS485C – NOVEMBER 2009 – REVISED MAY 2015 Device Functional Modes (continued) Two examples are provided that detail how different operating conditions can affect the total error calculations. Typical and maximum calculations are shown as well, to provide the user more information on how much error variance is present from device to device. 7.4.4.1 Example 1 INA282; V+ = 5 V; VCM = 12 V; VREF1 = VREF2 = 2.048 V; VSENSE = 10 mV Table 1. Example 1 TERM SYMBOL EQUATION TYPICAL VALUE MAXIMUM VALUE Initial input offset voltage VOS — 20 μV 70 μV Added input offset voltage because of common-mode voltage VOS_CM 0 μV 0 μV Added input offset voltage because of reference voltage VOS_REF RVRR u  2.048 V ± VREF  0 μV 0 μV Total input offset voltage VOS_Total (VOS)2 + (VOS_CM)2 + (VOS_REF)2 20 μV 70 μV Error from input offset voltage Error_VOS VOS_Total VSENSE ´ 100 0.20% 0.70% 1 20 ( 10 ( CMRR_dB ´ (VCM - 12V) Gain error Error_Gain — 0.40% 1.40% Nonlinearity error Error_Lin — 0.01% 0.01% Total error — (Error_VOS)2 + (Error_Gain)2 + (Error_Lin)2 0.45% 1.56% 7.4.4.2 Example 2 INA286; V+ = 5 V; VCM = 24 V; VREF1 = VREF2 = 0 V; VSENSE = 10 mV Table 2. Example 2 TERM SYMBOL EQUATION TYPICAL VALUE MAXIMUM VALUE Initial input offset voltage VOS — 20 μV 70 μV Added input offset voltage because of common-mode voltage VOS_CM 1.2 μV 12 μV Added input offset voltage because of reference voltage VOS_REF RVRR u  2.048 V ± VREF  34.8 μV 92.2 μV Total input offset voltage VOS_Total (VOS)2 + (VOS_CM)2 + (VOS_REF)2 40.2 μV 116.4 μV Error from input offset voltage Error_VOS VOS_Total VSENSE ´ 100 0.40% 1.16% Gain error Error_Gain — 0.40% 1.40% Nonlinearity error Error_Lin — 0.01% 0.01% 0.57% 1.82% 10 ( 20 2 ( Total error 1 CMRR_dB ´ (VCM - 12V) 2 (Error_VOS) + (Error_Gain) + (Error_Lin) — Copyright © 2009–2015, Texas Instruments Incorporated 2 Submit Documentation Feedback Product Folder Links: INA282 INA283 INA284 INA285 INA286 19 INA282, INA283, INA284, INA285, INA286 SBOS485C – NOVEMBER 2009 – REVISED MAY 2015 www.ti.com 8 Applications 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. 8.1 Application Information The INA28x family of devices measure the voltage developed across a current-sensing resistor when current passes through it. The ability to drive the reference pins to adjust the functionality of the output signal is shown in multiple configurations. 8.1.1 Basic Connections Figure 39 shows the basic connection of an INA28x family device. Connect the input pins, +IN and –IN, as closely as possible to the shunt resistor to minimize any resistance in series with the shunt resistance. Device Supply 2.7 V to 18 V CBYPASS 0.1 F Bus Supply ±14 V to +80 V Load +IN V+ ±IN Input Stage ± + OUT Output REF2 REF1 GND Figure 39. Basic Connections Power-supply bypass capacitors are required for stability. Applications with noisy or high-impedance power supplies may require additional decoupling capacitors to reject power-supply noise. Connect bypass capacitors close to the device pins. 20 Submit Documentation Feedback Copyright © 2009–2015, Texas Instruments Incorporated Product Folder Links: INA282 INA283 INA284 INA285 INA286 INA282, INA283, INA284, INA285, INA286 www.ti.com SBOS485C – NOVEMBER 2009 – REVISED MAY 2015 8.2 Typical Applications 8.2.1 Current Summing The outputs of multiple INA28x family devices are easily summed by connecting the output of one INA28x family device to the reference input of a second INA28x family device. The circuit configuration shown in Figure 40 is an easy way to achieve current summing. First Circuit +IN ±IN ±IN Input Stage Input Stage ± + REF2 REF1 + REF2 REF1 OUT ± +IN Second Circuit OUT Output Output VREF GND V+ GND V+ Summed Output V+ V+ NOTE: The voltage applied to the reference inputs must not exceed 9 V. Figure 40. Summing the Outputs of Multiple INA28x Family Devices Copyright © 2009–2015, Texas Instruments Incorporated Submit Documentation Feedback Product Folder Links: INA282 INA283 INA284 INA285 INA286 21 INA282, INA283, INA284, INA285, INA286 SBOS485C – NOVEMBER 2009 – REVISED MAY 2015 www.ti.com Typical Applications (continued) 8.2.1.1 Design Requirements In order to sum multiple load currents, multiple INA28x devices must be connected. Figure 40 shows summing for two devices. Summing beyond two devices is possible by repeating this connection. The reference input of the first INA28x family device sets the output quiescent level for all the devices in the string. 8.2.1.2 Detailed Design Procedure Connect the output of one INA28x family device to the reference input of the next INA28x family device in the chain. Use the reference input of the first circuit to set the reference of the final summed output. The currents sensed at each circuit in the chain are summed at the output of the last device in the chain. 8.2.1.3 Application Curves An example output response of a summing configuration is shown in Figure 41. The reference pins of the first circuit are connected to ground, and sine waves at different frequencies are applied to the two circuits to produce a summed output as shown. The sine wave voltage input for the first circuit is offset so that the whole wave is above GND. 100 mV/div 5 V/div Output Inputs Time (4 ms/div) VREF = 0 V Figure 41. Current Summing Application Output Response 22 Submit Documentation Feedback Copyright © 2009–2015, Texas Instruments Incorporated Product Folder Links: INA282 INA283 INA284 INA285 INA286 INA282, INA283, INA284, INA285, INA286 www.ti.com SBOS485C – NOVEMBER 2009 – REVISED MAY 2015 Typical Applications (continued) 8.2.2 Current Differencing Occasionally, the need arises to confirm that the current into a load is identical to the current out of a load, usually as part of diagnostic testing or fault detection. This situation requires precision current differencing, which is the same as summing except that the two amplifiers have the inputs connected opposite of each other. First Circuit Bus Supply Second Circuit Load +IN ±IN ±IN Input Stage Input Stage ± + REF2 REF1 + REF2 REF1 OUT ± +IN OUT Output Output VREF GND V+ GND V+ Difference Output V+ V+ NOTE: The voltage applied to the reference inputs must not exceed 9 V. Figure 42. Current Differencing Using an INA28x Family Device Copyright © 2009–2015, Texas Instruments Incorporated Submit Documentation Feedback Product Folder Links: INA282 INA283 INA284 INA285 INA286 23 INA282, INA283, INA284, INA285, INA286 SBOS485C – NOVEMBER 2009 – REVISED MAY 2015 www.ti.com Typical Applications (continued) 8.2.2.1 Design Requirements For current differencing, connect two INA28x devices, and have the inputs connected opposite to each other, as shown in Figure 42. The reference input of the first INA28x family device sets the output quiescent level for all the devices in the string. 8.2.2.2 Detailed Design Procedure Connect the output of one INA28x family device to the reference input of the second INA28x family device. The reference input of the first circuit sets the reference at the output. This circuit example is identical to the current summing example, except that the two shunt inputs are reversed in polarity. Under normal operating conditions, the final output is very close to the reference value and proportional to any current difference. This current differencing circuit is useful in detecting when current in to and out of a load do not match. 8.2.2.3 Application Curves 100 mV/div 5 V/div An example output response of a difference configuration is shown in Figure 43. The reference pins of the first circuit are connected to a reference voltage of 2.048 V. The inputs to each circuit is a 100-Hz sine wave, 180° out of phase with each other, resulting in a zero output as shown. The sine wave input to the first circuit is offset so that the input wave is completely above GND. Output Inputs Time (4 ms/div) VREF = 2.048 V Figure 43. Current Differencing Application Output Response 24 Submit Documentation Feedback Copyright © 2009–2015, Texas Instruments Incorporated Product Folder Links: INA282 INA283 INA284 INA285 INA286 INA282, INA283, INA284, INA285, INA286 www.ti.com SBOS485C – NOVEMBER 2009 – REVISED MAY 2015 9 Power Supply Recommendations The INA28x family makes accurate measurements well outside of its own power-supply voltage (V+) because the inputs (+IN and –IN) operate anywhere between –14 V and +80 V independent of V+. For example, the V+ power supply can be 5 V while the common-mode voltage being monitored by the shunt may be as high as 80 V. Of course, the output voltage range of the INA28x family is constrained by the V+ supply voltage. Note that when the power to the INA28x family is off (that is, no voltage is supplied to the V+ pin), the input pins (+IN and –IN) are high impedance with respect to ground and typically leak less than ±1 μA over the full common-mode range of –14 V to +80 V 10 Layout 10.1 Layout Guidelines Connect the input pins to the sensing resistor using a Kelvin or 4-wire connection. This connection technique makes sure that only the current-sensing resistor impedance is detected between the input pins. Poor routing of the current-sensing resistor commonly results in additional resistance present between the input pins. Given the very low ohmic value of the current resistor, any additional high-current carrying impedance causes significant measurement errors. Place the power-supply bypass capacitor as close as possible to the supply and ground pins. The recommended value of this bypass capacitor is 0.1 μF. Add additional decoupling capacitance to compensate for noisy or highimpedance power supplies. 10.2 Layout Example +IN ±IN GND REF2 NC REF1 V+ Supply Voltage OUT Output Signal Trace VIA to Power Plane Supply Bypass Capacitor VIA to Ground Plane Figure 44. Layout Example Copyright © 2009–2015, Texas Instruments Incorporated Submit Documentation Feedback Product Folder Links: INA282 INA283 INA284 INA285 INA286 25 INA282, INA283, INA284, INA285, INA286 SBOS485C – NOVEMBER 2009 – REVISED MAY 2015 www.ti.com 11 Device and Documentation Support 11.1 Related Links Table 3 lists quick access links. Categories include technical documents, support and community resources, tools and software, and quick access to sample or buy. Table 3. Related Links PARTS PRODUCT FOLDER SAMPLE & BUY TECHNICAL DOCUMENTS TOOLS & SOFTWARE SUPPORT & COMMUNITY INA282 Click here Click here Click here Click here Click here INA283 Click here Click here Click here Click here Click here INA284 Click here Click here Click here Click here Click here INA285 Click here Click here Click here Click here Click here INA286 Click here Click here Click here Click here Click here 11.2 Community Resources The following links connect to TI community resources. Linked contents are 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. TI E2E™ Online Community TI's Engineer-to-Engineer (E2E) Community. Created to foster collaboration among engineers. At e2e.ti.com, you can ask questions, share knowledge, explore ideas and help solve problems with fellow engineers. Design Support TI's Design Support Quickly find helpful E2E forums along with design support tools and contact information for technical support. 11.3 Trademarks E2E is a trademark of Texas Instruments. All other trademarks are the property of their respective owners. 11.4 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. 11.5 Glossary SLYZ022 — TI Glossary. This glossary lists and explains terms, acronyms, and definitions. 12 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. 26 Submit Documentation Feedback Copyright © 2009–2015, Texas Instruments Incorporated Product Folder Links: INA282 INA283 INA284 INA285 INA286 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) INA282AID ACTIVE SOIC D 8 75 RoHS & Green NIPDAU Level-2-260C-1 YEAR -40 to 125 I282A INA282AIDGKR ACTIVE VSSOP DGK 8 2500 RoHS & Green NIPDAUAG Level-2-260C-1 YEAR -40 to 125 (CFI, CFIF) INA282AIDGKT ACTIVE VSSOP DGK 8 250 RoHS & Green NIPDAUAG Level-2-260C-1 YEAR -40 to 125 (CFI, CFIF) INA282AIDR ACTIVE SOIC D 8 2500 RoHS & Green NIPDAU Level-2-260C-1 YEAR -40 to 125 I282A INA283AID ACTIVE SOIC D 8 75 RoHS & Green NIPDAU Level-2-260C-1 YEAR -40 to 125 I283A INA283AIDGKR ACTIVE VSSOP DGK 8 2500 RoHS & Green NIPDAUAG Level-2-260C-1 YEAR -40 to 125 (CFJ, CFJF) INA283AIDGKT ACTIVE VSSOP DGK 8 250 RoHS & Green NIPDAUAG Level-2-260C-1 YEAR -40 to 125 (CFJ, CFJF) INA283AIDR ACTIVE SOIC D 8 2500 RoHS & Green NIPDAU Level-2-260C-1 YEAR -40 to 125 I283A INA284AID ACTIVE SOIC D 8 75 RoHS & Green NIPDAU Level-2-260C-1 YEAR -40 to 125 I284A INA284AIDGKR ACTIVE VSSOP DGK 8 2500 RoHS & Green NIPDAUAG Level-2-260C-1 YEAR -40 to 125 (CFK, CFKF) INA284AIDGKT ACTIVE VSSOP DGK 8 250 RoHS & Green NIPDAUAG Level-2-260C-1 YEAR -40 to 125 (CFK, CFKF) INA284AIDR ACTIVE SOIC D 8 2500 RoHS & Green NIPDAU Level-2-260C-1 YEAR -40 to 125 I284A INA285AID ACTIVE SOIC D 8 75 RoHS & Green NIPDAU Level-2-260C-1 YEAR -40 to 125 I285A INA285AIDGKR ACTIVE VSSOP DGK 8 2500 RoHS & Green NIPDAUAG Level-2-260C-1 YEAR -40 to 125 (CFL, CFLF) INA285AIDGKT ACTIVE VSSOP DGK 8 250 RoHS & Green NIPDAUAG Level-2-260C-1 YEAR -40 to 125 (CFL, CFLF) INA285AIDR ACTIVE SOIC D 8 2500 RoHS & Green NIPDAU Level-2-260C-1 YEAR -40 to 125 I285A INA286AID ACTIVE SOIC D 8 75 RoHS & Green NIPDAU Level-2-260C-1 YEAR -40 to 125 I286A INA286AIDGKR ACTIVE VSSOP DGK 8 2500 RoHS & Green NIPDAUAG Level-2-260C-1 YEAR -40 to 125 (ODY, ODYF) INA286AIDGKT ACTIVE VSSOP DGK 8 250 RoHS & Green NIPDAUAG Level-2-260C-1 YEAR -40 to 125 (ODY, ODYF) INA286AIDR ACTIVE SOIC D 8 2500 RoHS & Green NIPDAU Level-2-260C-1 YEAR -40 to 125 I286A Addendum-Page 1 Samples PACKAGE OPTION ADDENDUM www.ti.com 10-Dec-2020 (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