LT1787HVIS8#PBF

Instrumentation, Op Amps, Buffer Amps Overview

The LT1787HVIS8#PBF is a micropower precision high-side current sense amplifier manufactured by Analog Devices Inc. It operates from a total supply voltage of 2.5V to 60V and features an input offset voltage of 40µV (typical) with a maximum of 75µV. The device provides a fixed voltage gain of 8 V/V and delivers greater than 12-bit dynamic range. It draws only 60µA of operating current and includes provisions for input noise filtering via FIL+ and FIL– pins. The component supports bidirectional sensing in both single and split supply configurations, offering unidirectional or bidirectional output options.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Monitors bidirectional currents flowing through an external sense resistor with high precision
• Features ultralow input offset voltage to maximize dynamic range for low sense voltages
• Includes dedicated filter terminals for implementing differential mode noise filtering
• Self-powered operation requiring minimal supply current from the monitored rail

Instrumentation, Op Amps, Buffer Amps Applications

• Battery monitoring systems
• Power monitoring circuits
• Portable test and measurement equipment
• Battery-operated electronic systems

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the specific suffix 'HV' indicates the 60V supply capability variant distinct from standard models. Confirm the 'I' grade meets the required temperature performance specifications for your application environment. Ensure the '#PBF' designation aligns with lead-free manufacturing requirements. Cross-reference the SOIC-8 package dimensions against your PCB footprint constraints before finalizing procurement.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component when high-side bidirectional current sensing is required within a 60V supply range. The fixed gain of 8 simplifies interface design with downstream analog-to-digital converters. Consider the 40µV typical offset voltage for applications demanding high resolution at low current levels. Evaluate the need for external filtering capacitors on the FIL pins to mitigate high-frequency noise interference.

Instrumentation, Op Amps, Buffer Amps Part Context

This part belongs to the LT1787 family of precision current sense amplifiers. The LT1787 series offers variants with different supply voltage ratings and temperature grades. The HV designation specifically denotes the extended 60V operational capability compared to the standard 36V limit of non-HV versions. All variants share the same core architecture and pinout configuration.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

LT1787HVIS8#TRPBF serves as the tape and reel equivalent of this tube-packaged component.