INA821IDGKR

Instrumentation, Op Amps, Buffer Amps Overview

The INA821IDGKR is a single-channel instrumentation amplifier from Texas Instruments, housed in an 8-VSSOP package. It features a high bandwidth of 4.7 MHz and low input voltage noise density of 7 nV/√Hz. The device operates on a supply voltage range of 4.5 V to 36 V with a maximum of 36 V. Key electrical specifications include a gain bandwidth product of 4.7 MHz, a slew rate of 2 V/µs, and an input bias current of 150 pA. It offers a common-mode rejection ratio (CMRR) of 140 dB and supports operation temperatures from -40°C to +125°C.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• High bandwidth performance of 4.7 MHz for signal integrity
• Low input voltage noise density of 7 nV/√Hz
• Precision characteristics with low input offset voltage
• Wide single-supply operating voltage range up to 36 V

Instrumentation, Op Amps, Buffer Amps Applications

• Precision sensor signal conditioning
• Medical instrumentation front-ends
• Industrial process control systems
• Data acquisition systems requiring high CMRR

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the specific suffix IDGKR corresponds to the 8-VSSOP package and tape-and-reel packaging format. Confirm RoHS compliance status and moisture sensitivity level (MSL 2) requirements for your assembly line. Ensure the ordering quantity aligns with the reel specifications provided by the manufacturer or distributor.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component when a balance of moderate bandwidth and ultra-low noise is required for precision applications. The wide supply voltage range allows flexibility in system design compared to lower-voltage alternatives. Consider the 8-VSSOP package size for space-constrained PCB layouts while maintaining high common-mode rejection capabilities.

Instrumentation, Op Amps, Buffer Amps Part Context

The INA821 belongs to Texas Instruments' family of precision instrumentation amplifiers. The IDGKR variant specifically denotes the surface-mount VSSOP-8 package configuration. This part is designed for applications demanding high accuracy and low noise, distinguishing it from general-purpose operational amplifiers within the same manufacturer portfolio.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

Check datasheets for compatible parts such as INA821IDGKT (tube version) or other TI instrumentation amplifiers with similar 4.7 MHz bandwidth and 7 nV/√Hz noise specs. Verify pinout compatibility and package dimensions before substitution.