INA827 Precision, G>5, 200uA, 2.7-V to 36-V Supply Instrumentation Amplifier | TI.com

INA827
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Precision, G>5, 200uA, 2.7-V to 36-V Supply Instrumentation Amplifier

 

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Description

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.

Features

  • 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

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Parametrics

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Part number Order Number of channels (#) Vs (Min) (V) Vs (Max) (V) CMRR (Min) (dB) Input offset (+/-) (Max) (uV) Input offset drift (+/-) (Max) (uV/C) Input bias current (+/-) (Max) (nA) Noise at 1 kHz (Typ) (nV/rt (Hz)) Iq (Typ) (mA) Bandwidth at min gain (Typ) (MHz) Gain (Min) (V/V) Gain (Max) (V/V) Gain error (+/-) (Max) (%) Operating temperature range (C) Package Group Package size: mm2:W x L (PKG) Noise at 0.1 Hz-10 Hz (Typ) (uVpp) Gain non-linearity (+/-) (Max) (%)
INA827 Order now 1     2.7     36     110     150     2     65     18     0.2     0.6     5     1000     0.4     -40 to 125     VSSOP | 8     8VSSOP: 15 mm2: 4.9 x 3 (VSSOP | 8)     0.5     0.0005