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INA285

ACTIVE

-14 to 80V, bi-directional current sense amplifier

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Data sheet

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INA296B ACTIVE -5-V to 110-V, bidirectional, 1.1-MHz 8-V/µs high-precision current sense amplifier Improved full-scale accuracy, increased bandwidth and a wider common-mode voltage range.

INA285

ACTIVE
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Product details

Product type Analog output Common-mode voltage (max) (V) 80 Common-mode voltage (min) (V) -14 Input offset (±) (max) (µV) 70 Input offset drift (±) (typ) (µV/°C) 0.3 Voltage gain (V/V) 1000 CMRR (min) (dB) 120 Bandwidth (kHz) 2 Supply voltage (max) (V) 18 Supply voltage (min) (V) 2.7 Iq (max) (mA) 0.9 Number of channels 1 Comparators (#) 0 Gain error (%) 1.6 Gain error drift (±) (max) (ppm/°C) 50 Slew rate (V/µs) 0.2 Features Bidirectional, Low-side Capable Rating Catalog Operating temperature range (°C) -40 to 125
Product type Analog output Common-mode voltage (max) (V) 80 Common-mode voltage (min) (V) -14 Input offset (±) (max) (µV) 70 Input offset drift (±) (typ) (µV/°C) 0.3 Voltage gain (V/V) 1000 CMRR (min) (dB) 120 Bandwidth (kHz) 2 Supply voltage (max) (V) 18 Supply voltage (min) (V) 2.7 Iq (max) (mA) 0.9 Number of channels 1 Comparators (#) 0 Gain error (%) 1.6 Gain error drift (±) (max) (ppm/°C) 50 Slew rate (V/µs) 0.2 Features Bidirectional, Low-side Capable Rating Catalog Operating temperature range (°C) -40 to 125
SOIC (D) 8 29.4 mm² 4.9 x 6 VSSOP (DGK) 8 14.7 mm² 3 x 4.9
  • 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)
  • 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)

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.

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.

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.

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.
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Type Title Date
* Data sheet INA28x High-Accuracy, Wide Common-Mode Range, Bidirectional Current Shunt Monitors, Zero-Drift Series datasheet (Rev. C) PDF | HTML 12 May 2015
Application brief Current Mode Control in Switching Power Supplies (Rev. E) PDF | HTML 12 Apr 2023
Application brief Low-Drift, Precision, In-Line Motor Current Measurements With PWM Rejection (Rev. D) PDF | HTML 07 Apr 2023
Application note Using a PCB Copper Trace as a Current-Sense Shunt Resistor PDF | HTML 25 Jan 2022
Application note Closed-Loop Analysis of Load-Induced Amplifier Stability Issues Using Zout 27 Oct 2017
Application brief Precision LED Brightness and Color Mixing With Discrete Current Sense Amplifiers 28 Feb 2017
Design guide EMC Compliant High-Side Current Sensing With Overvoltage Protection Design Guide 13 Feb 2014
EVM User's guide INA282-286EVM User's Guide 23 Sep 2010

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