LTC2051CMS8#TRPBF

Instrumentation, Op Amps, Buffer Amps Overview

The Analog Devices LTC2051CMS8#TRPBF is a dual zero-drift operational amplifier housed in an 8-lead MSOP package. It operates from a single supply of 2.7V to ±5.5V with a typical supply current of 0.75mA per amplifier. Key electrical specifications include a maximum input offset voltage of 3μV, a gain-bandwidth product of 3MHz, and a slew rate of 2V/μs. The device features rail-to-rail output swing, high common-mode rejection ratio (CMRR) and power supply rejection ratio (PSRR) exceeding 130dB, and operates within a temperature range of 0°C to 70°C.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Zero-drift architecture utilizing autozeroing circuitry to minimize DC offset and drift over temperature and time.
• Rail-to-rail output capability allowing operation close to both supply rails under various load conditions.
• High precision performance characterized by low noise density and exceptional CMRR and PSRR values.

Instrumentation, Op Amps, Buffer Amps Applications

• Thermocouple amplifiers
• Electronic scales
• Medical instrumentation
• Strain gauge amplifiers
• High resolution data acquisition

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the specific suffix #TRPBF indicates tape and reel packaging for automated assembly processes. Confirm the CMS8 designation corresponds to the commercial temperature grade (0°C to 70°C). Ensure compatibility with standard MSOP-8 footprints during PCB layout. Cross-reference the datasheet revision date to confirm parameter validity against current manufacturing standards.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component when ultralow offset voltage and drift are critical requirements for signal conditioning. The dual configuration offers space efficiency compared to single-channel alternatives. Consider the 3MHz bandwidth for applications requiring moderate speed alongside high DC accuracy. Evaluate the 0.75mA quiescent current against system power budgets for battery-operated devices.

Instrumentation, Op Amps, Buffer Amps Part Context

This part belongs to the LTC2051/LTC2052 family of zero-drift operational amplifiers designed for high-precision analog signal processing. The series includes variants with different channel counts, voltage ranges, and temperature grades. The MSOP package provides a compact solution for space-constrained designs while maintaining robust thermal performance.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

LTC2051IMS8#TRPBF: Identical electrical specifications but rated for industrial temperature range (-40°C to 85°C).

Instrumentation, Op Amps, Buffer Amps FAQ

How does the internal sampling frequency affect input bias current?

The internal autozeroing clock operates at approximately 7.5kHz. Charge injection from this process dominates the DC input bias current below 70°C, while leakage currents become dominant at elevated temperatures above 85°C.

What measures reduce clock feedthrough in this amplifier?

Clock feedthrough can be minimized by using smaller gain-setting resistors and minimizing source resistance at the inputs. Placing a capacitor across the feedback resistor also reduces feedthrough by limiting closed-loop bandwidth.