Analog Devices Inc. LTC6102HMS8-1#PBF

Overview

LTC6102HMS8-1#PBF from Analog Devices (formerly Linear Technology) is a precision zero-drift high-side current sense amplifier in 8-lead MSOP package, featuring ±10 µV max input offset, ±50 nV/°C max offset drift, 1 µs step response, 4 V to 60 V supply range, and integrated disable mode with 1 µA max quiescent current - enabling accurate battery monitoring and load protection in automotive power management systems.

For engineers reviewing the LTC6102HMS8-1#PBF datasheet, LTC6102HMS8-1#PBF pinout, LTC6102HMS8-1#PBF application, or LTC6102HMS8-1#PBF equivalent, key selection criteria include input offset stability over temperature, high common-mode voltage tolerance (up to 60 V), enable-controlled power gating, output current capability (1 mA), and compatibility with low-value shunt resistors down to 1 mΩ.

Technical Context

The LTC6102HMS8-1#PBF implements a precision current-to-current transducer architecture with a feedback-controlled sense amplifier that forces –INS to track +IN potential, enabling Kelvin-sense accuracy. Its internal regulated VREG rail powers internal circuitry independently of V+, improving PSRR.

It operates as a two-resistor-configurable transconductance amplifier: RIN sets IOUT = VSENSE / RIN, while ROUT converts output current to ground-referred voltage (VOUT = V– + IOUT × ROUT). The EN pin controls full device enable/disable with 500 µs turn-on and 100 µs turn-off timing.

Key Specifications

Pinout & Package

Package: 8-lead plastic MSOP (3 mm × 3 mm), exposed pad not present (DFN variant has exposed pad; MSOP does not). Operating temperature range: –40°C to 125°C (H-grade).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-side current sensing applications.

Compared with INA240A1QDRQ1 and MAX40056ATA+T, the LTC6102HMS8-1#PBF delivers superior DC accuracy (10× lower offset), faster transient response, and integrated disable - making it optimal for high-precision, low-quiescent-power battery and embedded power monitoring where layout space and thermal budget are constrained.

Availability

LTC6102HMS8-1#PBF is available at Aetrix Electronics and suitable for battery management systems, industrial motor drives, automotive ECUs, and telecom power shelf monitoring requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for LTC6102HMS8-1#PBF includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Analog Devices, Inc. (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets.

The LTC6102 product line was originally developed by Linear Technology (acquired by ADI in 2017) to address precision high-side current sensing needs in power-constrained, high-reliability systems - emphasizing ultra-low offset, wide supply range, and robust Kelvin interface design.

FAQ

What is the maximum common-mode voltage the LTC6102HMS8-1#PBF can measure?

The LTC6102HMS8-1#PBF supports a maximum differential sense voltage of 2 V (V+ – V+IN), and its +IN pin is rated to operate up to 20 V below –INS indefinitely. With V+ up to 60 V, this enables high-side sensing in 48 V and 60 V systems. Absolute maximum ratings confirm +IN withstands V+ – 20 V continuously, making LTC6102HMS8-1#PBF suitable for automotive and industrial bus monitoring without external attenuation.

Does the LTC6102HMS8-1#PBF require external components to operate?

Yes, the LTC6102HMS8-1#PBF requires three external components for basic operation: RIN (to set transconductance gain), ROUT (to convert output current to voltage), and a 0.1 µF capacitor from VREG to V+. No external compensation or filtering is required for stability. The LTC6102HMS8-1#PBF integrates internal regulation and precision amplification, minimizing bill-of-materials count while retaining full configurability.

How does the enable (EN) pin affect the output behavior of the LTC6102HMS8-1#PBF?

When EN is pulled low (<0.8 V), the LTC6102HMS8-1#PBF enters disable mode: supply current drops to ≤1 µA, output current ceases, and OUT goes high-impedance (open-drain off-state). Turn-off completes within 100 µs. When EN rises above 2.2 V, the device powers up fully in ≤500 µs, and OUT resumes sourcing current proportional to VSENSE. This behavior is intrinsic to LTC6102HMS8-1#PBF and does not require external pull-ups or sequencing.

Can the LTC6102HMS8-1#PBF be used with a 1 mΩ shunt resistor at 100 A?

Yes. At 100 A, a 1 mΩ shunt yields VSENSE = 100 mV. With LTC6102HMS8-1#PBF's ±10 µV max offset, the resulting offset error is 0.01% of full scale - well within typical measurement requirements. Its 2 V max sense voltage headroom and 1 µs response also support safe operation during 100 A surges. Layout must use Kelvin connections to –INF and –INS to avoid trace-resistance errors, as confirmed in LTC6102HMS8-1#PBF's application notes.

What is the temperature range specification for the LTC6102HMS8-1#PBF?

The LTC6102HMS8-1#PBF is specified for operation from –40°C to 125°C (H-grade), with guaranteed performance across this full range per datasheet Note 2. Input offset drift is limited to ±50 nV/°C max, and supply current remains stable from –40°C to 125°C. This makes LTC6102HMS8-1#PBF suitable for under-hood automotive, industrial motor control, and outdoor telecom equipment where ambient extremes are encountered.