LT6107MPS5#TRPBF

Instrumentation, Op Amps, Buffer Amps Overview

The LT6107MPS5#TRPBF is a high-side current sense amplifier in a 5-lead TSOT-23 package, rated for –55°C to 150°C. It features a maximum input offset voltage of 250µV and a maximum input bias current of 40nA. The supply range is 2.7V to 36V with a 44V absolute maximum. Gain is configured via two external resistors, achieving better than 1% accuracy. The output is a current source with a maximum of 1mA, offering a minimum PSRR of 106dB and a typical supply current of 65µA at 12V.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Configurable gain using two external resistors
• Low DC offset voltage for precise small signal detection
• High common-mode voltage tolerance up to 44V
• Wide operating temperature range suitable for harsh environments

Instrumentation, Op Amps, Buffer Amps Applications

• Current shunt measurement
• Battery monitoring systems
• Motor control circuits
• Overcurrent and fault detection

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the MPS5 suffix indicates the military/extended grade (-55°C to 150°C) rather than the standard H grade. Confirm the TRPBF suffix denotes tape and reel packaging with lead-free finish. Cross-reference the specific lot date code against reliability requirements if operating near the 150°C junction limit.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component when wide temperature stability and low offset are critical. Ensure the external RIN resistor value limits the output current to 1mA maximum. Verify that the chosen ROUT resistor allows the output voltage swing to remain within the input range of the downstream ADC or buffer circuit.

Instrumentation, Op Amps, Buffer Amps Part Context

This part belongs to the LT6107 family of high-side current sense amplifiers. It shares architectural similarities with the LT6106 but offers an extended temperature range and tighter offset specifications. It serves as a ground-referenced interface for translating high-side shunt voltages into usable signals.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

LT6107HS5#TRPBF (H-grade, -40°C to 150°C). Note that the MPS5 variant provides superior low-temperature performance compared to the HS5 version.

Instrumentation, Op Amps, Buffer Amps FAQ

How is the gain of the LT6107 determined?

Gain is set by two external resistors, RIN and ROUT. The transconductance is defined by 1/RIN, and the voltage gain is calculated as ROUT/RIN.

What is the maximum allowable sense voltage?

The maximum sense voltage (VSENSE(MAX)) is 0.5V when RIN is 500Ω. Higher voltages may affect performance but will not damage the device if output current limits are respected.