Analog Devices Inc. LTC1152CS8#TRPBF

Overview

LTC1152CS8#TRPBF from Analog Devices (formerly Linear Technology) is a zero-drift, rail-to-rail input/output operational amplifier in an 8-lead SOIC package. It delivers 10 µV max input offset voltage, 100 nV/°C max drift, 115 dB min CMRR, 0.7 MHz gain-bandwidth, and rail-to-rail swing into 1 kΩ - enabling high-accuracy single-supply signal conditioning in precision current sensing and data acquisition systems.

For engineers reviewing the LTC1152CS8#TRPBF datasheet, LTC1152CS8#TRPBF pinout, LTC1152CS8#TRPBF application, or LTC1152CS8#TRPBF equivalent, key selection criteria include verified zero-drift DC performance, internal charge pump architecture for true rail-to-rail input operation, shutdown functionality with 1 µA quiescent current, C-Load™ capacitive drive capability, and compatibility with ±1.5V to ±7V or 3V to 14V total supply configurations.

Technical Context

The LTC1152CS8#TRPBF employs a chopper-stabilized architecture with synchronized 2.3 kHz nulling clock and 4.7 MHz internal charge pump to extend input common-mode range beyond both rails by ~0.3 V. Its front-end sampling eliminates crossover distortion and enables >115 dB CMRR across 0–5 V common-mode range.

Output stage uses enhanced rail-to-rail driver with ~140 Ω open-loop resistance at 5 V supply, supporting 10 mA sink/source while maintaining full swing into 1 kΩ loads. Shutdown pin (Pin 1) places output in high-impedance state and reduces supply current to ≤1 µA, enabling multi-amplifier MUX configurations without external isolation.

Key Specifications

Pinout & Package

Package: 8-lead plastic SOIC (S8), 3.9 mm × 4.9 mm body, 1.27 mm pitch, RoHS-compliant, tape-and-reel (TRPBF).

Key Features

Applications

Equivalent & Alternatives

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

Compared with AD8628ARZ and MCP6V81-E/SN, the LTC1152CS8#TRPBF uniquely combines verified ≤10 µV offset, internal charge pump for guaranteed rail-to-rail input beyond V+, and integrated shutdown - making it optimal for space-constrained, single-supply, low-power precision systems demanding DC integrity and configurability.

Availability

LTC1152CS8#TRPBF is available at Aetrix Electronics and suitable for high-resolution data acquisition, single-supply transducer amplification, and high-side current sensing requiring stable component supply across industrial temperature ranges and long production lifecycles.

Supply support for LTC1152CS8#TRPBF 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. (acquired Linear Technology in 2017) is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors for precision instrumentation, industrial automation, and communications infrastructure.

The LTC1152CS8#TRPBF belongs to Linear's zero-drift op amp product line, engineered specifically for applications demanding ultra-low offset, near-zero drift, and rail-to-rail operation in resource-constrained, single-supply environments.

FAQ

What is the maximum total supply voltage for the LTC1152CS8#TRPBF?

The LTC1152CS8#TRPBF supports a total supply voltage range of 2.7 V to 14 V. This includes single-supply operation (e.g., 3 V to 14 V between V+ and V–) or dual-supply configurations (e.g., ±1.5 V to ±7 V). Absolute maximum rating is 14 V across V+ to V–; exceeding this risks permanent damage. Operation at 14 V is validated per datasheet electrical characteristics tables.

Does the LTC1152CS8#TRPBF require external components for rail-to-rail input operation?

No - the LTC1152CS8#TRPBF integrates an on-chip charge pump that generates an internal voltage ~2 V above V+, enabling its input stage to accept common-mode signals up to 0.3 V beyond V+ and V– without external components. This distinguishes it from most rail-to-rail op amps that require external level-shifting circuitry to handle inputs at the supply rails.

How does the shutdown feature of the LTC1152CS8#TRPBF affect output behavior?

When the SHDN pin (Pin 1) is pulled low, the LTC1152CS8#TRPBF enters shutdown mode: supply current drops to ≤1 µA, internal clocks halt, and the output stage transitions to a high-impedance state. This allows multiple LTC1152CS8#TRPBF units to share a common output bus in multiplexer configurations without contention or loading effects.

Can the LTC1152CS8#TRPBF drive large capacitive loads, and how is stability ensured?

Yes - the LTC1152CS8#TRPBF is C-Load™ certified and can drive any capacitive load when compensated via the COMP pin (Pin 5). Connecting a 0.1 µF capacitor from Pin 5 to OUT (Pin 6) ensures stability with infinite capacitance. Larger values (e.g., 1000 pF) provide bandwidth limiting; the datasheet provides exact compensation guidelines for 1 µF and higher loads.

What is the typical input noise performance of the LTC1152CS8#TRPBF in low-frequency applications?

The LTC1152CS8#TRPBF delivers 2 µV_P-P input-referred noise over 0.1 Hz to 10 Hz - a critical specification for DC-coupled, high-resolution measurements. This low flicker noise, combined with ±10 µV max offset and ±100 nV/°C drift, makes it suitable for precision applications such as weigh scales, medical sensors, and calibrated instrumentation where long-term stability and microvolt-level resolution are essential.