INA819IDR

Instrumentation, Op Amps, Buffer Amps Overview

The INA819IDR is a low-power precision instrumentation amplifier manufactured by Texas Instruments. It features a 35-µV offset voltage and 8-nV/√Hz input voltage noise density, ensuring high signal integrity in sensitive applications. The device operates on a single supply voltage ranging from 2.7 V to 36 V, with a typical quiescent current of 350 µA per channel. It offers a gain bandwidth product of 1.1 MHz and a slew rate of 0.4 V/µs. The component is housed in an 8-pin SOIC package (D) and supports operation over an extended temperature range from -40°C to +125°C.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Ultra-low power consumption suitable for battery-operated systems
• High precision with minimal input offset voltage and drift
• Wide single-supply operating voltage range
• Low input voltage noise for clean signal amplification

Instrumentation, Op Amps, Buffer Amps Applications

• Strain gauge and load cell interfaces
• Medical instrumentation such as ECG and EEG front-ends
• Industrial process control sensor conditioning
• Precision data acquisition systems

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the specific suffix 'IDR' corresponds to the tape-and-reel packaging format required for automated assembly processes. Confirm that the SOIC-8 package dimensions align with the target PCB footprint. Ensure the selected variant meets the necessary RoHS compliance standards for the intended market. Cross-reference the manufacturer's latest datasheet revision to confirm pinout compatibility and electrical specifications before finalizing procurement orders.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component when low power consumption is critical alongside high precision requirements. It is suitable for applications requiring wide dynamic range and high common-mode rejection. Consider the trade-off between its moderate bandwidth and ultra-low noise characteristics. Evaluate if the single-supply capability simplifies the power design compared to dual-supply alternatives. Verify that the input common-mode voltage range accommodates the sensor output levels.

Instrumentation, Op Amps, Buffer Amps Part Context

The INA819 belongs to Texas Instruments' family of low-power precision instrumentation amplifiers. It shares architectural similarities with the INA821 and INA828 but distinguishes itself through optimized power efficiency. This series targets portable and industrial applications where energy conservation and signal accuracy are paramount. The device integrates internal gain-setting resistors, reducing external component count and board space.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

• INA821IDR
• INA828IDR