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INA821IDGKR

High bandwidth (4.7MHz), low noise (7nV/√Hz), precision (35μV), low-power, instrumentation amp

Availability: 5,683

Packaging

Package | PIN: VSSOP (DGK) | 8
Temp: Q (-40 to 125)
Package qty | Carrier: 2,500 | LARGE T&R
Custom reel may be available
Qty Price
1-99 $3.93
100-249 $3.44
250-999 $2.41
1,000+ $1.95

Features

  • Low offset voltage: 10 µV (typ), 35 µV (max)
  • Gain drift: 5 ppm/°C (G = 1),
    35 ppm/°C (G > 1) (max)
  • Noise: 7 nV/√Hz
  • Bandwidth: 4.7 MHz (G = 1), 290 kHz (G = 100)
  • Stable with 1-nF capacitive loads
  • Inputs protected up to ±40 V
  • Common-mode rejection: 112 dB, G = 10 (min)
  • Power supply rejection: 110 dB, G = 1 (min)
  • Supply current: 650 µA (max)
  • Supply range:
    • Single-supply: 4.5 V to 36V
    • Dual-supply: ±2.25 V to ±18V
  • Specified temperature range: –40°C to +125°C
  • Packages: 8-pin SOIC and VSSOP

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Texas Instruments  INA821IDGKR

The INA821 is a high-precision instrumentation amplifier that offers low powerconsumption and operates over a wide single-supply or dual-supply range. A single external resistorsets any gain from 1 to 10,000. The device has high precision as a result of super-beta inputtransistors, which provide low input offset voltage, offset voltage drift, input bias current, andinput voltage and current noise. Additional circuitry protects the inputs against overvoltage up to±40 V.

The INA821 is optimized to provide a high common-mode rejection ratio. At G = 1, thecommon-mode rejection ratio exceeds 92 dB across the full input common-mode range. The device isdesigned for low-voltage operation from a 4.5-V single supply, and dual supplies up to ±18V.

The INA821 is available in an 8-pin SOIC and 8-pin VSSOP package, and specified over the–40°C to +125°C temperature range.