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Analog Devices LT1999IMS8-50#PBF — Analog & Data Acquisition

LT1999IMS8-50#PBF Current Sense Amplifier, 1.2 MHz, 3 V/µs

MPNLT1999IMS8-50#PBF
End of Life

Linear Technology LT1999IMS8-50#PBF, Current Sense Amplifier, 1 Circuit, 1.2 MHz -3dB Bandwidth, 3 V/µs Slew Rate, 4.5 V to 5.5 V Supply, 8-MSOP, -40°C to 85°C.

$6.56Ref. price · indicative, final on quote
Analog Devices LT1999IMS8-50#PBF datasheet (PDF)
Packaging8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
RoHSROHS3 Compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

LT1999IMS8-50#PBF specifications
ParameterValue
MountingSurface Mount
Amplifier typeCurrent Sense
Voltage - input offset500 µV
Voltage - supply span5.5 V
Current - supply5.8mA
Current - input bias137.5 µA
Operating temperature-40°C ~ 85°C
-3db bandwidth1.2 MHz
PackageTube
Slew rate3V/µs
Case8-TSSOP, 8-MSOP (0.118\", 3.00mm Width)
Number of circuits1

Product details

Current sense amplifier with 1.2 MHz bandwidth

The Linear Technology LT1999IMS8-50#PBF is a single-channel current sense amplifier designed to measure bidirectional current across a shunt resistor. Its 1.2 MHz -3 dB bandwidth and 3 V/µs slew rate allow it to track fast load transients in motor drives, solenoid control, and DC-DC converter output monitoring.

The 8-MSOP footprint is shared with many current-sense amplifiers and general-purpose op-amps, so board layout reuse across alternate sources is straightforward.

It is ROHS3 compliant.

Frequently asked questions

What is the bandwidth of LT1999IMS8-50?

The -3 dB bandwidth is 1.2 MHz, with a slew rate of 3 V/µs.

When sourcing LT1999IMS8-50#PBF, what's the closest functional second-source — AD8418ABRMZ?

The AD8418ABRMZ is a functional current-sense amplifier from Analog Devices, but it differs in key specs: its bandwidth is 250 kHz (vs 1.2 MHz), slew rate is 1 V/µs (vs 3 V/µs), and its supply range starts at 2.7 V (vs 4.5 V). These differences affect dynamic response and rail compatibility, so direct substitution requires design review.