LMR821G-GTR

Instrumentation, Op Amps, Buffer Amps Overview

The LMR821G-GTR is a single-channel operational amplifier from ROHM Semiconductor, housed in an SSOP-5 surface-mount package. It operates as a low-power ground-sense device with a gain-bandwidth product of 5.5 MHz and a slew rate of 2 V/us. The component draws 325 uA of operating supply current and supports a supply voltage range from 2.5V to 5V. Key electrical characteristics include a common-mode rejection ratio of 90 dB, an input bias current of 90 nA, and an input offset voltage of 1 mV. It functions within a temperature range of -40°C to +85°C.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Ground-sense input capability allowing operation near the negative rail
• Low power consumption suitable for battery-driven applications
• High common-mode rejection ratio for signal integrity

Instrumentation, Op Amps, Buffer Amps Applications

• Low voltage sensor signal conditioning
• Battery-powered portable electronics
• General-purpose analog signal processing

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the specific suffix GTR corresponds to the tape-and-reel packaging format containing 3000 units per reel. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure the SSOP-5 footprint matches the target PCB design constraints. Validate that the operating temperature range meets the environmental requirements of the final assembly.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component when a single-channel op amp with ground-sense inputs is required for low-voltage systems. It is appropriate for designs prioritizing low quiescent current alongside moderate bandwidth. Consider the SSOP-5 package size for space-constrained layouts. Verify that the 45 mA output current capability satisfies the load requirements of the application circuit.

Instrumentation, Op Amps, Buffer Amps Part Context

This part belongs to the LMR series of low-power operational amplifiers manufactured by ROHM Semiconductor. The series focuses on low-voltage operation and reduced current consumption. The LMR821G variant specifically integrates a single amplifier circuit optimized for ground-reference applications. It serves as a standard solution for general-purpose analog tasks in consumer and industrial electronics.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

Consult official ROHM documentation for direct pin-compatible substitutes within the LMR series. Verify functional equivalence regarding ground-sense capabilities and supply voltage limits before substitution.