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INA827

AKTIV

Präziser Instrumentenverstärker, G > 5, 200 uA, 2,7 bis 36 V Versorgungsspannung

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INA827

AKTIV
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Produktdetails

Number of channels 1 Vs (max) (V) 36 Vs (min) (V) 3 Input offset (±) (max) (µV) 150 Voltage gain (min) (V/V) 5 Voltage gain (max) (V/V) 1000 Noise at 1 kHz (typ) (nV√Hz) 17 Features Cost Optimized CMRR (min) (dB) 110 Input offset drift (±) (max) (µV/°C) 2.5 Input bias current (±) (max) (nA) 50 Iq (typ) (mA) 0.2 Bandwidth at min gain (typ) (MHz) 0.6 Gain error (±) (max) (%) 0.4 Operating temperature range (°C) -40 to 125 Rating Catalog Type Resistor Gain nonlinearity (±) (max) (%) 0.005 Output swing headroom (to negative supply) (typ) (V) 0.1 Output swing headroom (to positive supply) (typ) (V) -0.15 Input common mode headroom (to negative supply) (typ) (V) -0.2 Input common mode headroom (to positive supply) (typ) (V) -0.9 Noise at 0.1 Hz to 10 Hz (typ) (µVPP) 0.5
Number of channels 1 Vs (max) (V) 36 Vs (min) (V) 3 Input offset (±) (max) (µV) 150 Voltage gain (min) (V/V) 5 Voltage gain (max) (V/V) 1000 Noise at 1 kHz (typ) (nV√Hz) 17 Features Cost Optimized CMRR (min) (dB) 110 Input offset drift (±) (max) (µV/°C) 2.5 Input bias current (±) (max) (nA) 50 Iq (typ) (mA) 0.2 Bandwidth at min gain (typ) (MHz) 0.6 Gain error (±) (max) (%) 0.4 Operating temperature range (°C) -40 to 125 Rating Catalog Type Resistor Gain nonlinearity (±) (max) (%) 0.005 Output swing headroom (to negative supply) (typ) (V) 0.1 Output swing headroom (to positive supply) (typ) (V) -0.15 Input common mode headroom (to negative supply) (typ) (V) -0.2 Input common mode headroom (to positive supply) (typ) (V) -0.9 Noise at 0.1 Hz to 10 Hz (typ) (µVPP) 0.5
VSSOP (DGK) 8 14.7 mm² 3 x 4.9
  • Eliminates Errors from External Resistors at Gain of 5
  • Common-Mode Range Goes Below
    Negative Supply
  • Input Protection: Up to ±40 V
  • Rail-to-Rail Output
  • Outstanding Precision:
    • Common-Mode Rejection: 88 dB, minimum
    • Low Offset Voltage: 150 µV, maximum
    • Low Drift: 2.5 µV/°C, maximum
    • Low Gain Drift: 1 ppm/°C, max (G = 5 V/V)
    • Power-Supply Rejection:
      100 dB, min (G = 5)
    • Noise: 17 nV/√Hz, G = 1000 V/V
  • High Bandwidth:
    • G = 5: 600 kHz
    • G = 100: 150 kHz
  • Supply Current: 200 µA, typical
  • Supply Range:
    • Single Supply: 3 V to 36 V
    • Dual Supply: ±1.5 V to ±18 V
  • Specified Temperature Range:
    –40°C to +125°C
  • Package: 8-pin VSSOP
  • Eliminates Errors from External Resistors at Gain of 5
  • Common-Mode Range Goes Below
    Negative Supply
  • Input Protection: Up to ±40 V
  • Rail-to-Rail Output
  • Outstanding Precision:
    • Common-Mode Rejection: 88 dB, minimum
    • Low Offset Voltage: 150 µV, maximum
    • Low Drift: 2.5 µV/°C, maximum
    • Low Gain Drift: 1 ppm/°C, max (G = 5 V/V)
    • Power-Supply Rejection:
      100 dB, min (G = 5)
    • Noise: 17 nV/√Hz, G = 1000 V/V
  • High Bandwidth:
    • G = 5: 600 kHz
    • G = 100: 150 kHz
  • Supply Current: 200 µA, typical
  • Supply Range:
    • Single Supply: 3 V to 36 V
    • Dual Supply: ±1.5 V to ±18 V
  • Specified Temperature Range:
    –40°C to +125°C
  • Package: 8-pin VSSOP

The INA827 is a low-cost instrumentation amplifier (INA) that offers extremely low power consumption and operates over a very wide single- or dual-supply range. The device is optimized for the lowest possible gain drift of only 1 ppm per degree Celsius in G = 5, which requires no external resistor. However, a single external resistor sets any gain from 5 to 1000.

The INA827 is optimized to provide excellent common-mode rejection ratio (CMRR) of over 88 dB (G = 5) over frequencies up to 5 kHz. In G = 5, CMRR exceeds 88 dB across the full input common-mode range from the negative supply all the way up to 1 V of the positive supply. Using a rail-to-rail output, the INA827 is well-suited for low-voltage operation from a 3-V singlesupply as well as dual supplies up to ±18 V. Additional circuitry protects the inputs against overvoltage of up to ±40 V beyond the power supplies by limiting the input currents to a save level.

The INA827 is available in a small VSSOP-8 package and is specified for the –40°C to +125°C temperature range. For a similar instrumentation amplifier with a gain range of 1 V/V to 1000 V/V, see the INA826.

The INA827 is a low-cost instrumentation amplifier (INA) that offers extremely low power consumption and operates over a very wide single- or dual-supply range. The device is optimized for the lowest possible gain drift of only 1 ppm per degree Celsius in G = 5, which requires no external resistor. However, a single external resistor sets any gain from 5 to 1000.

The INA827 is optimized to provide excellent common-mode rejection ratio (CMRR) of over 88 dB (G = 5) over frequencies up to 5 kHz. In G = 5, CMRR exceeds 88 dB across the full input common-mode range from the negative supply all the way up to 1 V of the positive supply. Using a rail-to-rail output, the INA827 is well-suited for low-voltage operation from a 3-V singlesupply as well as dual supplies up to ±18 V. Additional circuitry protects the inputs against overvoltage of up to ±40 V beyond the power supplies by limiting the input currents to a save level.

The INA827 is available in a small VSSOP-8 package and is specified for the –40°C to +125°C temperature range. For a similar instrumentation amplifier with a gain range of 1 V/V to 1000 V/V, see the INA826.
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Technische Dokumentation

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* Data sheet INA827 Wide Supply Range, Rail-to-Rail Output Instrumentation Amplifier With a Minimum Gain of 5 datasheet (Rev. B) PDF | HTML 27 Nov 2017
Application note Importance of Input Bias Current Return Paths in Instrumentation Amplifier Apps PDF | HTML 27 Jul 2021
E-book The Signal e-book: A compendium of blog posts on op amp design topics 28 Mär 2017

Design und Entwicklung

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Evaluierungsplatine

INA827EVM — INA827-Evaluierungsmodul

The INA827EVM is intended to provide basic functional evaluation of the INA827.

Benutzerhandbuch: PDF
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