LT1999IMS8-20#PBF

Instrumentation, Op Amps, Buffer Amps Overview

The LT1999IMS8-20#PBF is a high voltage, bidirectional current sense amplifier manufactured by Analog Devices Inc. It features a fixed gain of 20V/V and operates with an independent 5V supply drawing 1.55mA. The device supports a common mode input range from –5V to 80V and provides a buffered output. Key electrical specifications include a 2MHz bandwidth, 3V/μs slew rate, and maximum input offset voltage of 1.5mV. It is housed in an 8-lead MSOP package and functions within a temperature range of –40°C to 85°C.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Bidirectional current monitoring with high common mode rejection
• Integrated shutdown mode for low power consumption
• Smooth operation across the entire common mode input range
• High ESD tolerance for robust industrial applications

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 the specific suffix #PBF indicates lead-free finish and tube packaging when ordering. Confirm the IMS8 designation corresponds to the 8-lead MSOP package variant. Ensure the -20 suffix matches the required 20V/V gain configuration for the target circuit design. Check for automotive qualified versions if AEC-Q100 compliance is necessary.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component when a fixed 20V/V gain is required for bidirectional current sensing. Consider the 80V common mode range for high-side or low-side configurations. Evaluate the 2MHz bandwidth against signal frequency requirements. Compare the 1.55mA active current draw against system power budgets versus alternative amplifiers.

Instrumentation, Op Amps, Buffer Amps Part Context

This part belongs to the LT1999 family of high voltage current sense amplifiers. The series includes variants with gains of 10V/V and 50V/V. The IMS8 suffix denotes the MSOP package option engineered for FMEA. The family is designed for precision monitoring in harsh electrical environments.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

LT1999IMS8-10#PBF offers 10V/V gain. LT1999IMS8-50#PBF offers 50V/V gain. LT1999IMS8-20F#PBF provides the same gain but with the FMEA pinout option.