INA819IDGKR

Instrumentation, Op Amps, Buffer Amps Overview

The INA819IDGKR is a precision instrumentation amplifier manufactured by Texas Instruments, featuring e-trim technology for enhanced accuracy. It operates on a single supply voltage ranging from 2.7 V to 36 V. Key electrical specifications include a maximum input offset voltage of 35 µV and a low input voltage noise density of 8 nV/√Hz at 1 kHz. The device offers a gain bandwidth product of 1.4 MHz and a typical slew rate of 0.6 V/µs. It draws a maximum supply current of 350 µA per channel. The output is rail-to-rail, and the component is housed in an 8-pin SOIC package.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• e-trim technology ensures high precision with low offset voltage and drift
• Rail-to-rail output capability maximizes dynamic range
• Low power consumption suitable for battery-operated systems
• High common-mode rejection ratio for accurate signal conditioning

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 signal conditioning
• Data acquisition systems requiring high accuracy

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the specific suffix 'GKR' corresponds to the tape-and-reel packaging format when ordering. Confirm that the 8-pin SOIC package dimensions match your PCB footprint requirements. Ensure the operating temperature range aligns with your system's environmental conditions. Cross-reference the manufacturer part number with authorized distributors to avoid counterfeit components. Check for any recent design changes or obsolescence notices from Texas Instruments.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component when high precision and low power are critical. The e-trim feature reduces the need for external calibration. Compare the 35 µV offset against other instrumentation amplifiers if higher precision is required. Consider the 1.4 MHz bandwidth for signal frequency requirements. Evaluate the rail-to-rail output against applications needing full-scale swing near supply rails.

Instrumentation, Op Amps, Buffer Amps Part Context

The INA819 belongs to Texas Instruments' family of low-power, precision instrumentation amplifiers. It is designed for applications requiring high accuracy and low power consumption. The e-trim technology allows for laser trimming during manufacturing to achieve tight tolerance specifications. This series is commonly used in industrial and medical fields where signal integrity is paramount.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

The INA819ID is a similar pin-compatible variant in a different package. Other alternatives in the TI portfolio include the INA821 and INA828, which offer comparable performance characteristics. Verify pinout compatibility and electrical specifications before substituting.