LTC2055HMS8#TRPBF

Instrumentation, Op Amps, Buffer Amps Overview

The LTC2055HMS8#TRPBF is a dual micropower zero-drift operational amplifier in an 8-lead MSOP package. It operates from a single supply of 2.7V to 6V or dual supplies up to ±5.5V. Key electrical parameters include a maximum input offset voltage of 3μV and drift of 30nV/°C over the –40°C to 125°C range. The device features a gain-bandwidth product of 500kHz, typical PSRR and CMRR of 130dB, and low noise of 1.6μV P-P (DC to 10Hz). Supply current is typically 130μA per amplifier.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Auto-zeroing architecture ensures near-zero DC offset and drift across temperature and supply variations.
• Rail-to-rail output swing capability with extended common-mode input range reaching the negative supply rail.
• Micropower consumption suitable for battery-operated systems while maintaining high precision.

Instrumentation, Op Amps, Buffer Amps Applications

• Thermocouple amplifiers
• Electronic scales
• Medical instrumentation
• Strain gauge amplifiers
• Low side precision current sense

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the specific suffix #TRPBF indicates tape and reel packaging when ordering. Confirm the H grade corresponds to the –40°C to 125°C operating temperature range required for the application. Ensure the MSOP-8 footprint matches the PCB layout specifications provided in the datasheet package drawings.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component for applications requiring ultra-low offset voltage without external trimming. The dual configuration offers space savings compared to single-channel alternatives. Consider the 500kHz bandwidth for signal conditioning needs. Verify that the 130μA per channel supply current aligns with power budget constraints.

Instrumentation, Op Amps, Buffer Amps Part Context

This part belongs to the LTC2054/LTC2055 family of zero-drift amplifiers. It shares architectural similarities with the LTC2050 series but focuses on lower power consumption. The MSOP-8 package provides a compact solution compared to larger industrial packages while maintaining thermal performance suitable for general-purpose precision analog circuits.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

LTC2055IMS8#TRPBF

Instrumentation, Op Amps, Buffer Amps FAQ

Does the LTC2055 exhibit output phase inversion when the input exceeds the common mode range?

No, the device is designed so that signals extending beyond the allowed input common mode range do not cause output phase inversion.

What is the internal sampling frequency of the auto-zero circuitry?

The internal sampling frequency is typically 1kHz.