OPA124P

Instrumentation, Op Amps, Buffer Amps Overview

The OPA124P is a low noise precision operational amplifier manufactured by Burr-Brown, utilizing Difet architecture. It features a voltage-feedback structure with frequency compensation for stability at gains of three or higher. The device operates within a wide temperature range from -55°C to 85°C and supports dual supply voltages up to ±18V. Key electrical characteristics include a maximum input offset voltage of 200µV and a maximum bias current of 0.01µA at 25°C. It provides a nominal common-mode rejection ratio of 138dB and is housed in an 8-pin plastic small outline package.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Low noise precision performance optimized for high-fidelity signal processing
• Difet input stage providing ultra-low bias current and offset voltage
• Voltage-feedback architecture ensuring stable operation across various gain configurations

Instrumentation, Op Amps, Buffer Amps Applications

• Precision instrumentation circuits requiring minimal signal distortion
• High-accuracy data acquisition systems
• Medical equipment signal conditioning

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the manufacturer designation as Burr-Brown, noting that Texas Instruments acquired the company. Confirm the specific suffix 'P' corresponds to the plastic small outline package variant. Ensure the component meets the required operating temperature range of -55°C to 85°C. Check for RoHS compliance status, as older Burr-Brown components may not be certified. Validate pinout compatibility if replacing existing designs.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component when low noise and precision are critical requirements. The Difet technology offers superior bias current performance compared to standard bipolar inputs. Consider the 138dB CMRR for applications involving common-mode interference. Ensure the supply voltage does not exceed the absolute maximum ratings to prevent damage. Evaluate thermal management needs given the plastic package construction.

Instrumentation, Op Amps, Buffer Amps Part Context

This part belongs to the Burr-Brown family of precision operational amplifiers. It shares architectural similarities with other Difet devices like the OPA111 and OPA121. The series is characterized by low noise and high accuracy. Texas Instruments continues to support these legacy parts through its analog product line. The OPA124P represents the plastic package version of this precision amplifier.

Instrumentation, Op Amps, Buffer Amps FAQ

What is the maximum input offset voltage for the OPA124P?

The maximum input offset voltage is specified as 200µV.

Is the OPA124P frequency compensated?

Yes, the device is internally frequency compensated for stability at gains of five or greater.