OPA191IDGKR

Instrumentation, Op Amps, Buffer Amps Overview

The OPA191IDGKR is a single-channel, low-power precision operational amplifier manufactured by Texas Instruments. It features e-trim CMOS technology with a maximum supply voltage of 36 V and a minimum of 4.5 V. Key electrical parameters include a gain-bandwidth product of 2.5 MHz, a slew rate of 5.5 V/µs, an input offset voltage of 5 µV, and an input bias current of 5 pA. The device operates with a quiescent current of 140 µA per channel and delivers an output current of 70 mA. It offers a common-mode rejection ratio of 140 dB and an input voltage noise density of 15 nV/√Hz. The component is housed in an 8-VSSOP package and supports surface mount installation.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Utilizes e-trim CMOS architecture for high precision and stability
• Provides rail-to-rail output capability for maximum dynamic range
• Designed for low power consumption with minimal quiescent current draw

Instrumentation, Op Amps, Buffer Amps Applications

• Battery-powered instrumentation systems
• Precision data acquisition circuits
• Medical equipment signal conditioning

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the specific suffix IDGKR to confirm the 8-VSSOP package type and reel packaging format. Ensure compatibility with the required operating temperature range of -40°C to +125°C. Confirm RoHS compliance status matches project requirements. Cross-reference the manufacturer part number against official Texas Instruments documentation to avoid counterfeit components. Validate that the supply voltage limits align with the target circuit design specifications.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component when low power consumption is critical alongside high precision requirements. The 2.5 MHz bandwidth suits applications where speed is secondary to accuracy. Consider the 8-VSSOP package for space-constrained designs requiring surface mount technology. Evaluate the 5 pA input bias current suitability for high-impedance sensor interfaces. Compare against higher-speed alternatives if slew rate limitations impact system performance.

Instrumentation, Op Amps, Buffer Amps Part Context

This device belongs to the OPA191 family of precision amplifiers from Texas Instruments. It shares architectural similarities with other members like the OPA2191 (dual channel) and OPA4191 (quad channel). The e-trim process ensures tight matching and low drift characteristics typical of this series. It serves as a single-channel solution within a broader portfolio designed for industrial and medical applications requiring reliable analog signal processing.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

OPA191IDGKT is a verified substitute offering identical electrical specifications but supplied in cut-tape packaging instead of reel format.