Analog Devices Inc. LTC2052CS#PBF

Overview

LTC2052CS#PBF from Analog Devices (formerly Linear Technology) is a quad zero-drift operational amplifier in a 14-lead SOIC package, delivering ultra-low input offset voltage (±3 μV max), near-zero drift (30 nV/°C max), and rail-to-rail output swing. It operates from single 2.7 V or dual ±5 V supplies and supports high-precision DC-coupled applications including thermocouple amplification, strain gauge signal conditioning, and medical instrumentation front-ends.

For engineers reviewing the LTC2052CS#PBF datasheet, LTC2052CS#PBF pinout, LTC2052CS#PBF application, or LTC2052CS#PBF equivalent, key selection criteria include guaranteed 0°C to 70°C operation, 3 MHz gain-bandwidth product, 1.5 μV_P-P (0.01 Hz–10 Hz) input-referred noise, and verified CMRR/PSRR >125 dB across supply and common-mode ranges.

Technical Context

The LTC2052CS#PBF employs autozeroing architecture with a 7.5 kHz internal sampling clock to continuously correct input offset and drift. Its chopper-stabilized core achieves <1 μV typical offset and <10 nV/°C typical drift while maintaining DC accuracy over temperature, supply, and common-mode voltage variations.

It features extended input common-mode range (V_– to V₊ – 1.3 V), rail-to-rail output stage capable of driving 2 kΩ loads to both rails, and shutdown functionality (not implemented in SO-14 package). The device exhibits 140 dB typical open-loop gain and 130 dB typical PSRR/CMRR at DC, enabling stable high-gain precision configurations without external trimming.

Key Specifications

Pinout & Package

Package: 14-lead plastic SOIC (S14), 0.150-inch width, JEDEC MS-012 compliant. Body dimensions: 8.64 mm × 3.91 mm × 1.75 mm.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar zero-drift op amp applications.

Compared with LTC2052CGN#PBF and LTC2052HVCS#PBF, the LTC2052CS#PBF offers the lowest-cost SOIC solution for standard 3V/5V precision applications, with identical DC performance but simpler board routing and broader distributor availability than SSOP or HV variants.

Availability

LTC2052CS#PBF is available at Aetrix Electronics and suitable for thermocouple amplifiers, electronic scales, and medical instrumentation requiring stable component supply across industrial and test equipment production cycles.

Supply support for LTC2052CS#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 full technical and manufacturing continuity for the LTC portfolio.

The LTC2052CS#PBF belongs to Linear's precision zero-drift op amp family, engineered specifically for DC-accurate signal conditioning in sensor interfaces where offset, drift, and low-frequency noise dominate error budgets.

FAQ

What is the maximum operating temperature range for the LTC2052CS#PBF?

The LTC2052CS#PBF is specified for 0°C to 70°C ambient operation. While the underlying silicon is rated for –40°C to 125°C junction temperature, the 'C' grade suffix confirms factory characterization and guarantee only across the commercial temperature range. For extended temperature use, select LTC2052IS#PBF (–40°C to 85°C) or LTC2052HS#PBF (–40°C to 125°C).

Does the LTC2052CS#PBF include a shutdown pin?

No, the LTC2052CS#PBF in the 14-lead SOIC package does not implement a shutdown function. Shutdown capability is available only in MSOP packages (e.g., LTC2052CMS10) with dedicated SHDN pins. The LTC2052CS#PBF draws continuous quiescent current - 1.0 mA per amplifier at 3 V - and cannot be placed into low-power sleep mode.

What is the input common-mode voltage range of the LTC2052CS#PBF?

The LTC2052CS#PBF accepts input voltages from V– to V+ – 1.3 V across its full operating temperature and supply range. At 5 V single supply, this means inputs can range from 0 V to 3.7 V; at ±5 V dual supply, inputs operate from –5 V to +3.7 V. This extended range supports direct connection to resistive bridges biased at mid-supply without level-shifting circuitry.

How does clock feedthrough affect system design with the LTC2052CS#PBF?

The LTC2052CS#PBF uses a 7.5 kHz autozeroing clock, resulting in two forms of clock feedthrough: input-referred residue (<1 μV_RMS) and impedance-dependent charge injection. To minimize impact, keep source impedances below 10 kΩ and use feedback capacitors to limit closed-loop bandwidth. Layout best practices include short, symmetric traces and local 0.1 μF bypassing at V+ and V– pins.

Can the LTC2052CS#PBF drive a 10kΩ load to the rails?

Yes - the LTC2052CS#PBF delivers rail-to-rail output swing into 10 kΩ loads, with typical high-side swing of V+ – 2 mV and low-side swing of V– + 2 mV at room temperature. This performance is maintained across the full 0°C to 70°C range and enables direct interface with 16-bit and higher-resolution ADCs without output attenuation or level-shifting networks.