INA819 - Texas Instruments

INA819 Precision Instrumentation Amplifier

The INA819 is a high-precision instrumentation amplifier that offers low power consumption and operates over a very wide single-supply or dualsupply range. A single external resistor sets any gain from 1 to 10,000. The device offers high precision as a result of super-beta input transistors, which provide exceptionally low input offset voltage, offset volta.

Features

• Low offset voltage: 10 µV (typ), 35 µV (max)
• Gain drift: 5 ppm/°C (G = 1), 35 ppm/°C (G > 1) (max)
• Noise: 8 nV/√ Hz
• Bandwidth: 2 MHz (G = 1), 270 kHz (G = 100)
• Stable with 1-nF capacitive loads
• Inputs protected up to ±60 V
• Common-mode rejection: 110 dB, G = 10 (min)
• Power supply rejection: 110 dB, G = 1 (min)
• Supply current: 385 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
• Packages: 8-pin SOIC, VSSOP, WSON 2 Applications
• Analog input module
• Flow transmitter
• Battery test
• LCD tes.