OPA388IDGKR

Instrumentation, Op Amps, Buffer Amps Overview

The OPA388IDGKR is a single-channel precision operational amplifier from Texas Instruments, utilizing CMOS zero-drift architecture. It features a gain-bandwidth product of 10 MHz and a slew rate of 5 V/us. Key electrical parameters include an input offset voltage of 250 nV, input bias current of 30 pA, and input noise density of 7 nV/sqrt Hz. The device operates on a supply voltage range of 2.5 V to 5.5 V with a typical quiescent current of 1.9 mA per channel. It offers rail-to-rail input and output capabilities, a common-mode rejection ratio of 138 dB, and delivers up to 60 mA output current. The component is housed in an 8-pin VSSOP package and supports operating temperatures from -40°C to +125°C.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Zero-drift technology eliminates input offset voltage drift over temperature and time.
• CMOS architecture provides low power consumption while maintaining high bandwidth.
• True rail-to-rail input and output operation maximizes dynamic range.
• Zero-crossover distortion ensures accurate signal processing without glitching.

Instrumentation, Op Amps, Buffer Amps Applications

• Precision data acquisition systems
• Medical instrumentation
• Industrial process control
• Sensor signal conditioning

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the specific suffix 'DGKR' corresponds to the VSSOP-8 tape and reel packaging configuration. Confirm that the ordering part number matches the required package style and quantity format for your manufacturing line. Ensure compatibility with standard surface-mount assembly processes for the specified thermal range.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component when low offset drift and high accuracy are critical alongside moderate bandwidth requirements. The CMOS zero-drift design is suitable for applications where chopper-stabilized amplifiers might introduce switching noise or require complex filtering. Consider the 60 mA output drive capability for direct interfacing with ADCs or long cables without additional buffering stages.

Instrumentation, Op Amps, Buffer Amps Part Context

This part belongs to the OPA388 family of zero-drift amplifiers, which includes dual (OPA2388) and quad (OPA4388) variants. The IDGKR designation specifically identifies the single-channel version in an 8-VSSOP package with industrial temperature rating. It shares core electrical characteristics with other members of the series but differs in channel count and physical footprint.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

Direct pin-compatible substitutes within the same family include OPA388IDGKT (cut tape packaging). For different packages, OPA388IDBVT (SOT-23-5) offers similar performance in a smaller footprint. Verify that alternative parts maintain the 10 MHz bandwidth and zero-drift specifications if circuit stability depends on these parameters.