INA828 - 50-μV Offset, 7-nV/√Hz Noise, Low-Power, Precision Instrumentation Amplifier

The INA828 is a high-precision instrumentation amplifier that offers low powerconsumption and operates over a very wide single- or dual-supply range. A single external resistorsets any gain from 1 to 1000. The device offers excellent precision due to the use of newsuper-beta input transistors which provide exceptionally low input offset voltage, offset voltagedrift, input bias current, and input voltage and current noise. Additional circuitry protects theinputs against overvoltage up to ±40 V.

The INA828 is optimized to provide excellent common-mode rejection ratio. At G = 1, thecommon-mode rejection ratio exceeds 90 dB across the full input common-mode range. The device iswell-suited for low-voltage operation from a 5-V single supply as well as dual supplies up to ±18V. Finally, INA828 is available in an 8-pin SOIC package and specified over the –40°C to +125°Ctemperature range.

• Precision Instrumentation Amplifier Evolution:
  • Second Generation: INA828
  • First Generation: INA128
• Low Offset Voltage: 50 µV, MAX
• Gain Drift: 5 ppm/°C (G = 1), 50 ppm/°C (G > 1)
• Noise: 7 nV/√Hz
• Bandwidth: 2 MHz (G = 1), 260 kHz (G = 100)
• Stable with 1-nF Capacitive Loads
• Inputs Protected Up to ±40 V
• Common-Mode Rejection:
  • 110 dB, MIN (G = 10)
• Power-Supply Rejection: 100 dB, MIN (G = 1)
• Supply Current: 650 µA, MAX
• Supply Range:
  • Single Supply: 4.5 V to 36 V
  • Dual Supply: ±2.25 V to ±18 V
• Specified Temperature Range:
  –40°C to +125°C
• Package: 8-Pin SOIC

All trademarks are the property of their respective owners.