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INA317

ACTIVE

Micro-power (50µA), zero-drift (75µV offset, 0.3µV/˚C), precision RRO instrumentation amplifier

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Data sheet

INA317

ACTIVE
Data sheet Order now

Product details

Number of channels 1 Vs (max) (V) 5.5 Vs (min) (V) 1.8 Input offset (±) (max) (µV) 75 Voltage gain (min) (V/V) 1 Voltage gain (max) (V/V) 1000 Noise at 1 kHz (typ) (nV√Hz) 50 Features Zero Drift CMRR (min) (dB) 100 Input offset drift (±) (max) (µV/°C) 0.3 Input bias current (±) (max) (nA) 0.2 Iq (typ) (mA) 0.05 Bandwidth at min gain (typ) (MHz) 0.15 Gain error (±) (max) (%) 0.25 Operating temperature range (°C) -40 to 125 Rating Catalog Type Resistor Output swing headroom (to negative supply) (typ) (V) 0.05 Output swing headroom (to positive supply) (typ) (V) -0.05 Input common mode headroom (to negative supply) (typ) (V) 0.1 Input common mode headroom (to positive supply) (typ) (V) -0.1 Noise at 0.1 Hz to 10 Hz (typ) (µVPP) 1
Number of channels 1 Vs (max) (V) 5.5 Vs (min) (V) 1.8 Input offset (±) (max) (µV) 75 Voltage gain (min) (V/V) 1 Voltage gain (max) (V/V) 1000 Noise at 1 kHz (typ) (nV√Hz) 50 Features Zero Drift CMRR (min) (dB) 100 Input offset drift (±) (max) (µV/°C) 0.3 Input bias current (±) (max) (nA) 0.2 Iq (typ) (mA) 0.05 Bandwidth at min gain (typ) (MHz) 0.15 Gain error (±) (max) (%) 0.25 Operating temperature range (°C) -40 to 125 Rating Catalog Type Resistor Output swing headroom (to negative supply) (typ) (V) 0.05 Output swing headroom (to positive supply) (typ) (V) -0.05 Input common mode headroom (to negative supply) (typ) (V) 0.1 Input common mode headroom (to positive supply) (typ) (V) -0.1 Noise at 0.1 Hz to 10 Hz (typ) (µVPP) 1
VSSOP (DGK) 8 14.7 mm² 3 x 4.9
  • Low Offset Voltage: 75 µV (Maximum), G ≥ 100
  • Low Drift: 0.3 µV/°C, G ≥ 100
  • Low Noise: 50 nV/√Hz, G ≥ 100
  • High CMRR: 100 dB (Minimum), G ≥ 10
  • Low Input Bias Current: 200 pA (Maximum)
  • Supply Range: 1.8 V to 5.5 V
  • Input Voltage: (V–) 0.1 V to (V+) –0.1 V
  • Output Range: (V–) 0.05 V to (V+) –0.05 V
  • Low Quiescent Current: 50 µA
  • Operating Temperature: –40°C to +125°C
  • RFI Filtered Inputs
  • 8-Pin VSSOP Package
  • Low Offset Voltage: 75 µV (Maximum), G ≥ 100
  • Low Drift: 0.3 µV/°C, G ≥ 100
  • Low Noise: 50 nV/√Hz, G ≥ 100
  • High CMRR: 100 dB (Minimum), G ≥ 10
  • Low Input Bias Current: 200 pA (Maximum)
  • Supply Range: 1.8 V to 5.5 V
  • Input Voltage: (V–) 0.1 V to (V+) –0.1 V
  • Output Range: (V–) 0.05 V to (V+) –0.05 V
  • Low Quiescent Current: 50 µA
  • Operating Temperature: –40°C to +125°C
  • RFI Filtered Inputs
  • 8-Pin VSSOP Package

The INA317 is a low-power, precision instrumentation amplifier offering excellent accuracy. The versatile 3-operational amplifier design, small size and low power make the INA317 usable in a wide range of portable applications.

A single external resistor sets any gain from 1 to 1000, as defined by the industry-standard gain equation: G = 1 + (100 kΩ / RG).

The instrumentation amplifier provides low offset voltage (75 µV, G ≥ 100), excellent offset voltage drift
(0.3 µV/°C, G ≥ 100) and high common-mode rejection (100 dB at G ≥ 10). The INA317 operates with power supplies as low as 1.8 V (±0.9 V) and a quiescent current of 50 µA, making the device usable in battery-operated systems. Using autocalibration techniques to ensure precision over the extended industrial temperature range, the INA317 device offers low noise density (50 nV/√Hz) that extends down to DC.

The INA317 is available in an 8-pin VSSOP surface-mount package and is specified over the TA = –40°C to +125°C temperature range.

The INA317 is a low-power, precision instrumentation amplifier offering excellent accuracy. The versatile 3-operational amplifier design, small size and low power make the INA317 usable in a wide range of portable applications.

A single external resistor sets any gain from 1 to 1000, as defined by the industry-standard gain equation: G = 1 + (100 kΩ / RG).

The instrumentation amplifier provides low offset voltage (75 µV, G ≥ 100), excellent offset voltage drift
(0.3 µV/°C, G ≥ 100) and high common-mode rejection (100 dB at G ≥ 10). The INA317 operates with power supplies as low as 1.8 V (±0.9 V) and a quiescent current of 50 µA, making the device usable in battery-operated systems. Using autocalibration techniques to ensure precision over the extended industrial temperature range, the INA317 device offers low noise density (50 nV/√Hz) that extends down to DC.

The INA317 is available in an 8-pin VSSOP surface-mount package and is specified over the TA = –40°C to +125°C temperature range.
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Technical documentation

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Top documentation Type Title Format options Date
* Data sheet INA317 Micro-Power (50-µA), Zero-Drift, Rail-to-Rail-Out Instrumentation Amplifier datasheet PDF | HTML 21 Nov 2017
Application note Importance of Input Bias Current Return Paths in Instrumentation Amplifier Apps PDF | HTML 27 Jul 2021
Application brief Zero-Drift Amplifiers: Features and Benefits (Rev. C) 28 Jan 2021
Application brief Comprehensive Error Calculation for Instrumentation Amplifiers 26 Mar 2019
Analog Design Journal Measuring the linear operating region of instrumentation amplifiers 24 Oct 2016
Analog Design Journal VCM vs. VOUT plots for instrumentation amplifiers with two op amps 30 Oct 2015

Design & development

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VSSOP (DGK) 8 Ultra Librarian
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