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Texas Instruments LMP8640MK-F/NOPB — Analog & Data Acquisition

TI LMP8640MK-F/NOPB Current Sense Amplifier, 450 kHz, SOT-23

MPNLMP8640MK-F/NOPB
End of Life

Texas Instruments LMP8640MK-F/NOPB, current sense amplifier, 1 circuit, 450 kHz gain bandwidth, 1.8 V/µs slew rate, 2.7 V to 12 V supply, SOT-23-THIN package, -40°C to 125°C.

$2.91Ref. price · indicative, final on quote
Texas Instruments LMP8640MK-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

LMP8640MK-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 amplifier for precision monitoring

Its 450 kHz gain-bandwidth product and 1.8 V/µs slew rate let it track fast load transients in DC/DC converters, motor drives, and power-management loops. The part operates from 2.7 V to 12 V and is specified over the full -40°C to 125°C industrial range, making it suitable for under-hood automotive, factory-floor automation, and outdoor telecom equipment. Housed in a thin SOT-23-6 (SOT-23-THIN) package, it saves board space on dense analog front-ends.

The 450 kHz GBP sets the usable closed-loop bandwidth. Input offset voltage is trimmed to 900 µV.

Package and ordering variants

The LMP8640MK-F/NOPB is supplied in a thin SOT-23-6 (SOT-23-THIN) package, surface-mount only. The ordering code suffix /NOPB indicates lead-free (RoHS3-compliant) construction.

Frequently asked questions

What is a good equivalent or replacement for LMP8640MK-F/NOPB?

The INA254A1IPWAR is a zero-drift current sense amplifier from TI with a 350 kHz bandwidth and 2.4 V/µs slew rate, also in a surface-mount package. It is a functional alternative if lower offset drift is needed, but verify the pinout and supply range against your layout.