Analog Devices Inc. LTC2053IMS8-SYNC#PBF

Overview

LTC2053IMS8-SYNC#PBF from Analog Devices (formerly Linear Technology) is a precision, rail-to-rail, zero-drift instrumentation amplifier with external clock synchronization capability. It delivers 116dB CMRR independent of gain, <10µV max input offset voltage, and <50nV/°C drift across –40°C to +85°C. Its resistor-programmable gain, 2.7V to ±5.5V supply range, and rail-to-rail I/O make it ideal for high-accuracy thermocouple and strain gauge amplification in industrial sensor interfaces.

For engineers reviewing the LTC2053IMS8-SYNC#PBF datasheet, LTC2053IMS8-SYNC#PBF pinout, LTC2053IMS8-SYNC#PBF application, or LTC2053IMS8-SYNC#PBF equivalent, key selection criteria include its synchronized sampling architecture, guaranteed offset performance over temperature, MS8 package compatibility, and dual-supply operation up to ±5.5V without external clock dependency.

Technical Context

The LTC2053IMS8-SYNC#PBF uses charge-balanced sampled-data conversion to translate differential input voltage into a single-ended signal, followed by amplification via an internal zero-drift op amp. Its CLK pin (Pin 1) accepts an 8× sample-rate external clock-e.g., 24kHz for 3kHz sampling-to eliminate aliasing in synchronized data acquisition systems.

Unlike the base LTC2053, this variant replaces the EN pin with a dedicated CLK input, disabling the internal 3kHz oscillator when driven. Input common-mode range spans rail-to-rail, output swings rail-to-rail, and gain is set by two external resistors (RG and R1), enabling precise DC-coupled amplification with minimal drift.

Key Specifications

Pinout & Package

Package: 8-lead plastic MSOP (MS8), 3mm × 3mm footprint, exposed pad internally connected to V–.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar instrumentation amplifier applications.

Compared with AD8421ARMZ and LTC2057IMS8#PBF, the LTC2053IMS8-SYNC#PBF uniquely combines resistor-programmable gain, guaranteed sub-10µV offset over temperature, and deterministic external clock synchronization-making it the only choice for calibrated, multi-channel, low-drift sensor DAQ requiring temporal coherence.

Availability

LTC2053IMS8-SYNC#PBF is available at Aetrix Electronics and suitable for thermocouple amplification, strain gauge interface, and medical ECG front-end designs requiring stable component supply, long-term calibration integrity, and synchronized sampling capability.

Supply support for LTC2053IMS8-SYNC#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, acquired Linear Technology in 2017 to expand precision signal chain solutions.

The LTC2053 product line was designed specifically for ultra-low-drift, high-CMRR instrumentation in demanding sensor interface applications-including industrial process control, test equipment, and medical diagnostics-where DC accuracy and thermal stability are non-negotiable.

FAQ

What is the function of Pin 1 on the LTC2053IMS8-SYNC#PBF?

Pin 1 on the LTC2053IMS8-SYNC#PBF is the CLK input, used to synchronize the internal 3kHz sampling clock to an external system clock. It must be driven with an 8× frequency square wave (e.g., 24kHz) to achieve 3kHz sampling. Leaving it floating reverts the device to its internal oscillator, but parasitic coupling may degrade offset performance-so the standard LTC2053 (with EN pin) is preferred if synchronization is unused. The LTC2053IMS8-SYNC#PBF does not support enable/disable functionality.

Does the LTC2053IMS8-SYNC#PBF require external clocking to operate?

No, the LTC2053IMS8-SYNC#PBF operates fully functional with its internal 3kHz oscillator even when the CLK pin is left unconnected. However, driving the CLK pin with a precise external clock (e.g., 24kHz) disables the internal oscillator and locks sampling to the system master clock-critical for anti-aliasing in synchronized multi-channel data acquisition. Clocking is optional but recommended for deterministic timing control in the LTC2053IMS8-SYNC#PBF.

What is the maximum differential input voltage allowed for the LTC2053IMS8-SYNC#PBF?

The maximum differential input voltage for the LTC2053IMS8-SYNC#PBF is constrained by the equation V– ≤ (V+IN – V–IN) + VREF ≤ V+ – 1.3V. For example, with a 3V single supply (V+ = 3V, V– = 0V) and VREF = 0V, the allowable differential input is ≤1.7V. Exceeding this limit risks saturation or damage. This constraint arises from the internal switched-capacitor front end and is explicitly defined in the LTC2053IMS8-SYNC#PBF datasheet-not a generic limitation.

How does gain programming work on the LTC2053IMS8-SYNC#PBF?

Gain on the LTC2053IMS8-SYNC#PBF is set by two external resistors: R1 between REF (Pin 5) and RG (Pin 6), and R2 between RG (Pin 6) and OUT (Pin 7). The DC gain is calculated as G = 1 + R2/R1. Unlike traditional IAs, no internal gain-setting resistors are used-the LTC2053IMS8-SYNC#PBF relies entirely on this external 2-resistor network for programmability, enabling precise, stable, and trim-free gain configuration across decades of range.

Can the LTC2053IMS8-SYNC#PBF operate from a single 3V supply?

Yes, the LTC2053IMS8-SYNC#PBF is fully specified for single-supply operation down to 2.7V. With a 3V supply (V+ = 3V, V– = 0V), it delivers rail-to-rail input common-mode range (0V to 3V), rail-to-rail output swing (within 20mV of rails), and maintains 116dB CMRR and <10µV offset. Its internal zero-drift architecture and sampled-data front end ensure stable DC performance without requiring dual supplies-making the LTC2053IMS8-SYNC#PBF well-suited for battery-powered instrumentation.