The INA821 is a high-precision instrumentation amplifier that offers low power consumption and operates over a wide single-supply or dual-supply range. A single external resistor sets any gain from 1 to 10,000. The device has high precision as a result of super-beta input transistors, which provide low input offset voltage, offset voltage drift, input bias current, and input 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, the common-mode rejection ratio exceeds 92 dB across the full input common-mode range. The device is designed for low-voltage operation from a 4.5-V single supply, and dual supplies up to ±18 V.
The INA821 is available in 8-pin SOIC, VSSOP, and WSON packages, and is specified over the –40°C to +125°C temperature range.
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The INAEVM-ALT-SO8 is an instrumentation amplifier evaluation module (EVM) with alternate pinout and is used to simplify prototyping precision instrumentation amplifiers in the SO-8 (D) package with the pinout shown in the user’s guide. The EVM is an unpopulated board, so instrumentation (...)
| Package | Pins | Download |
|---|---|---|
| SOIC (D) | 8 | View options |
| VSSOP (DGK) | 8 | View options |
| WSON (DRG) | 8 | View options |
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