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Texas Instruments LMP8640HVMKE-F/NOPB — Memory (DRAM / SRAM / Flash / EEPROM)

LMP8640HVMKE-F/NOPB Current Sense, 450 kHz, TSOT-23-6

MPNLMP8640HVMKE-F/NOPB
End of Life

Texas Instruments LMP8640HVMKE-F/NOPB current sense amplifier, single circuit, 450 kHz GBW, 1.8 V/µs slew rate, 2.7-12 V supply, TSOT-23-6 package, Tape & Reel.

$3.1Ref. price · indicative, final on quote
Texas Instruments LMP8640HVMKE-F/NOPB datasheet (PDF)
PackagingSOT-23-6 Thin, TSOT-23-6
RoHSROHS3 Compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

LMP8640HVMKE-F/NOPB specifications
ParameterValue
MountingSurface Mount
Amplifier typeCurrent Sense
Voltage - input offset900 µV
Voltage - supply span2.7 V
Current - supply2.3mA
Current - input bias13 µA
Operating temperature-40°C ~ 125°C
Gain bandwidth product450 kHz
PackageTape & Reel (TR); Cut Tape (CT)
Slew rate1.8V/µs
CaseSOT-23-6 Thin, TSOT-23-6
Number of circuits1

Product details

Current sense amp with 450 kHz bandwidth

The LMP8640HVMKE-F/NOPB is a single-channel current sense amplifier from Texas Instruments, built to measure current on a high-side or low-side shunt with a 450 kHz gain-bandwidth product and a 1.8 V/µs slew rate.

DC precision and input bias

Supply current is 2.3 mA, which is moderate for a precision current sense amp but not a low-power sleep-mode part.

Package and board-fit

Supplied in a TSOT-23-6 (SOT-23-Thin) package, the footprint is the same as a standard SOT-23-6 but with a thinner body — 0.9 mm seated height vs 1.1 mm for the regular SOT-23. The thin profile helps when the PCB sits behind a display or in a tight enclosure. Surface-mount assembly with standard reflow profile; no underfill needed for the temperature range.

Frequently asked questions

What is the closest functional second-source for LMP8640HVMKE-F/NOPB?

The INA254A1IPWAR is a zero-drift current sense amplifier with a 350 kHz bandwidth and 2.4 V/µs slew rate, also in a surface-mount package. The LMP8640HVMKE-F/NOPB offers a wider supply range (12 V vs 5.5 V) and a higher bandwidth (450 kHz vs 350 kHz), but the INA254A1IPWAR has a lower input bias current (0.1 µA vs 13 µA), which improves accuracy with low-value shunts. The pinout differs — a board spin may be required.