Texas Instruments INA828
The INA828 is a high-precision instrumentation amplifier that offers low power consumption and operates over a very wide single- or dual-supply range. The device offers excellent precision due to the use of new super-beta input transistors which provide exceptionally low input offset voltage, offset voltage drift, input bias current, and input voltage and current noise. The INA828 is optimized to provide excellent common-mode rejection ratio.FEATURES
●1 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 2
APPLICATIONS
● Industrial Process Controls● Circuit Breakers
● Battery Testers
● ECG Amplifiers
● Power Automation
● Medical Instrumentation
● Portable Instrumentation 3
DESCRIPTION
A single external resistor sets any gain from 1 to 1000. Additional circuitry protects the inputs against overvoltage up to ±40 V. At G = 1, the commonmode rejection ratio exceeds 90 dB across the full input common-mode range.