Analog Devices Inc. LTC6102CMS8-1#PBF

Overview

LTC6102CMS8-1#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 quiescent current - enabling accurate battery monitoring and load protection in automotive power management systems.

For engineers reviewing the LTC6102CMS8-1#PBF datasheet, LTC6102CMS8-1#PBF pinout, LTC6102CMS8-1#PBF application, or LTC6102CMS8-1#PBF equivalent, key selection criteria include input offset stability over temperature, enable pin logic thresholds, output current compliance under varying V+, gain configuration via R_IN/R_OUT, and compatibility with low-value shunt resistors down to 1 mΩ.

Technical Context

The LTC6102CMS8-1#PBF implements a precision current-to-current transducer architecture with a feedback-controlled sense amplifier that forces –INS to track +IN, enabling Kelvin-sense accuracy. Its internal regulated VREG rail powers core circuitry independently of V+ fluctuations.

It operates as a high-voltage, high-common-mode current monitor: differential input voltage (–INS to +IN) is converted into a proportional open-drain output current (I_OUT = V_SENSE/R_IN), referenced to V–, with programmable gain set by external R_IN and R_OUT. The EN pin controls active/disabled states with defined V_ENL ≤ 0.8 V and V_ENH ≥ 2.2 V.

Key Specifications

Pinout & Package

Package: 8-lead plastic MSOP (MS8), 3 mm × 3 mm footprint, exposed pad not present (DFN variant has exposed pad; MSOP does not).

Key Features

Applications

Equivalent & Alternatives

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

Compared with INA240A1QDGKRQ1 and MAX40056ATA+T, the LTC6102CMS8-1#PBF offers unique combination of user-configurable transconductance gain, integrated disable mode for ultra-low standby current, and guaranteed ±10 µV offset over its specified 0°C to 70°C range - making it optimal for cost-sensitive, space-constrained industrial and battery-powered designs requiring flexible gain and power sequencing.

Availability

LTC6102CMS8-1#PBF is available at Aetrix Electronics and suitable for battery management systems, industrial power supply monitoring, and automotive load protection requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.

Supply support for LTC6102CMS8-1#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 acquired Linear Technology in 2017 and maintains its precision analog portfolio, including high-performance current sense, timing, and signal conditioning ICs.

The LTC6102 family was designed specifically for high-accuracy, high-common-mode current measurement in harsh environments - targeting applications where shunt-based sensing must coexist with wide supply ranges, extreme temperature variation, and stringent power budget constraints.

FAQ

What is the maximum sense voltage supported by the LTC6102CMS8-1#PBF?

The LTC6102CMS8-1#PBF supports a maximum input sense voltage (V_SENSE = V_+IN – V_–INS) of 2 V with <1% error when R_IN = 10 kΩ and R_OUT = 10 kΩ, and 0.8 V at minimum 4 V supply. This allows accurate monitoring of currents up to 2000 A with appropriate shunt selection, as confirmed in the datasheet's dynamic range plots and absolute maximum ratings.

Does the LTC6102CMS8-1#PBF require external components to operate?

Yes, the LTC6102CMS8-1#PBF requires at minimum an external R_IN between V+ and –INF to set transconductance gain, an R_OUT between OUT and V– to convert output current to voltage, and a 0.1 µF capacitor from VREG to V+. Optional input filtering or Kelvin routing may be added for noise immunity or high-current accuracy, per the Applications Information section.

How does the enable pin (EN) function on the LTC6102CMS8-1#PBF?

The EN pin on the LTC6102CMS8-1#PBF is an active-high digital control input referenced to V–. When pulled ≥2.2 V, the device operates normally with typical supply current of 400 µA at 12 V. When pulled ≤0.8 V, the LTC6102CMS8-1#PBF enters disable mode with supply current reduced to ≤1 µA, while retaining ability to wake within 500 µs - a feature exclusive to the "-1" variant.

Can the LTC6102CMS8-1#PBF be used with a 1 mΩ shunt resistor?

Yes, the LTC6102CMS8-1#PBF is explicitly designed for ultra-low-value shunts. With ±10 µV max input offset, a 1 mΩ shunt yields only 10 mA equivalent offset error at full scale - well within typical system resolution requirements. The datasheet confirms operation down to 10 µV sense voltage, and application examples demonstrate 1 mΩ usage with 10 A–100 A current ranges.

What is the operating temperature range for the LTC6102CMS8-1#PBF?

The LTC6102CMS8-1#PBF is rated for 0°C to 70°C specified operating temperature range (C-grade), with guaranteed performance over this interval. It is characterized and expected to function from –40°C to 85°C but is not tested or QA sampled outside the 0°C to 70°C range, as documented in Note 2 of the datasheet.