LT1999HMS8-10F#WPBF

Instrumentation, Op Amps, Buffer Amps Overview

The LT1999HMS8-10F#WPBF is a high-speed, precision current sense amplifier manufactured by Analog Devices Inc. It features a fixed gain of 10V/V and operates from an independent 5V supply with a typical quiescent current of 1.55mA. The device supports bidirectional current monitoring over a wide common mode input range of –5V to 80V. It includes a low power shutdown mode drawing less than 10µA and offers a buffered output. The component is housed in an 8-lead MSOP package engineered for FMEA and is qualified for automotive applications.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• High voltage bidirectional current sensing capability across a wide common mode range
• Engineered for FMEA pinout configuration within the 8-lead MSOP package
• Automotive qualification compliant with AEC-Q100 standards
• Low power shutdown mode for minimizing system energy consumption

Instrumentation, Op Amps, Buffer Amps Applications

• H-Bridge motor control systems
• Switching power supply current monitoring
• Solenoid current sensing
• Battery charge current measurement

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify that the specific suffix #WPBF corresponds to the Automotive Grade H-grade variant with the FMEA pinout configuration. Confirm the temperature range aligns with your operational requirements. Ensure ordering documentation matches the exact part number to avoid confusion with standard commercial or industrial grades lacking the automotive designation.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component when automotive reliability is required alongside high common mode voltage tolerance. The FMEA pinout option provides enhanced design flexibility for failure mode analysis compared to standard pinouts. Verify that the 10V/V gain meets your signal conditioning needs without requiring external amplification stages.

Instrumentation, Op Amps, Buffer Amps Part Context

This part belongs to the LT1999 family of high-speed current sense amplifiers. It shares core electrical characteristics with other gain variants like the LT1999-20 and LT1999-50 but is distinguished by its specific 10V/V gain setting. The 'H' grade indicates extended temperature performance suitable for demanding environments.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

LT1999HMS8-10F#PBF (Standard Commercial/Industrial Grade)

Instrumentation, Op Amps, Buffer Amps FAQ

What is the function of the FMEA suffix in the package name?

The FMEA suffix indicates that the 8-lead MSOP package utilizes a pinout specifically engineered for Failure Mode and Effects Analysis, differing from the original MSOP pinout.

How does the device handle bidirectional current flow?

The output voltage polarity relative to the REF pin indicates the direction of the sensed current, allowing for accurate monitoring of both positive and negative current flow through the shunt resistor.