LT2178CS8#TRPBF

Instrumentation, Op Amps, Buffer Amps Overview

The LT2178CS8#TRPBF is a micropower dual operational amplifier manufactured by Analog Devices Inc., housed in an 8-lead plastic SO package. It operates from a single supply as low as 2V or dual supplies up to ±22V, with a maximum supply current of 17μA per amplifier at 5V. Key electrical specifications include a maximum input offset voltage of 70μV, a maximum input bias current of 5nA, and a gain bandwidth product of 85kHz. The device features low noise characteristics, with 0.9μV P-P voltage noise and 1.5pA P-P current noise in the 0.1Hz to 10Hz band.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Optimized for single-supply operation with input voltage range including ground and output capable of swinging to within millivolts of ground while sinking current.
• Delivers precision performance with extremely low offset voltage and picoampere-level offset current, enabling use with high-value source resistors without significant error.
• Combines micropower consumption with low noise density, allowing for extended battery life in portable instrumentation applications.

Instrumentation, Op Amps, Buffer Amps Applications

• Battery- or solar-powered systems
• Portable instrumentation
• Remote sensor amplifiers
• Micropower sample-and-hold circuits

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the specific suffix #TRPBF indicates tape and reel packaging when sourcing. Confirm the CS8 designation corresponds to the commercial temperature range (0°C to 70°C) required for the application. Ensure compatibility with standard 8-lead SO pinouts during PCB layout integration.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component for designs requiring ultra-low quiescent current alongside high DC precision. It is suitable where input bias currents must be minimized to prevent errors across megohm source impedances. Consider the LT2078 if higher bandwidth or slew rate is needed, accepting a threefold increase in supply current.

Instrumentation, Op Amps, Buffer Amps Part Context

This part belongs to the LT2178/LT2179 family of micropower precision op amps. The LT2178 provides two amplifiers in an 8-pin package, while the LT2179 offers four in a 14-pin variant. Both are designed for single-supply environments but support dual supplies, targeting low-power signal conditioning tasks.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

LT2078CS8#TRPBF

Instrumentation, Op Amps, Buffer Amps FAQ

Does the LT2178 support rail-to-rail input?

No, the input voltage range includes ground but does not extend to the positive supply rail. It is optimized for single-supply operation starting from ground.

What is the minimum operating supply voltage?

The minimum supply voltage is 2V for single-supply operation or ±1V for dual-supply operation, though specifications are guaranteed down to these limits.