LTC2051HS8#PBF

Instrumentation, Op Amps, Buffer Amps Overview

The LTC2051HS8#PBF is a dual zero-drift operational amplifier in an 8-lead SOIC package. It features a maximum input offset voltage of 3μV and drift of 30nV/°C. The device operates on a single supply from 2.7V to ±5.5V with a typical supply current of 0.75mA per amplifier. Key electrical parameters include a 3MHz gain-bandwidth product, 2V/μs slew rate, 140dB open-loop gain, and 130dB PSRR/CMRR. Input noise is 1.5μVP-P (0.01Hz to 10Hz). It supports rail-to-rail output swing and includes a shutdown pin.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Zero-drift architecture utilizing autozeroing for minimal DC offset and drift
• Rail-to-rail output capability driving loads down to 2kΩ
• High precision specifications including 140dB large-signal voltage gain
• Integrated shutdown mode for significant power reduction

Instrumentation, Op Amps, Buffer Amps Applications

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

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the specific suffix #PBF indicates lead-free compliance when sourcing. Confirm the HS8 designation corresponds to the industrial temperature range (-40°C to 125°C) and SOIC-8 package type required for your design. Ensure compatibility with the 2.7V to ±5.5V supply rails specified in the datasheet.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component for applications requiring high DC accuracy without external trimming. The dual configuration offers space efficiency compared to single-channel alternatives. Consider the 3MHz bandwidth for signal processing needs. Verify that the source resistance at the inputs is managed to minimize clock feedthrough effects inherent to chopper-stabilized amplifiers.

Instrumentation, Op Amps, Buffer Amps Part Context

This part belongs to the LTC2051/LTC2052 family of dual and quad zero-drift operational amplifiers. It shares core performance characteristics with other variants like the IMS8 or HVCMS8 but differs in package style and temperature rating. The HS8 variant specifically targets industrial environments using the standard SOIC footprint.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

LTC2051IMS8#PBF

Instrumentation, Op Amps, Buffer Amps FAQ

How does the internal sampling frequency affect the output?

The internal autozeroing circuit operates at approximately 7.5kHz. This can cause clock feedthrough visible in the output spectrum, which is minimized by keeping input source resistance below 10kΩ.

What is the function of the shutdown pin?

Pulling the shutdown pin low reduces supply current to approximately 3μA and places the outputs in a high-impedance state. Floating or driving it high enables normal operation.