Texas Instruments TLC27L2ACPS

Overview

TLC27L2ACPS from Texas Instruments is a precision dual CMOS operational amplifier optimized for low-power, single-supply sensor signal conditioning. It delivers 5 mV max input offset voltage at 25°C, ultra-low 34 µA supply current (typical), and rail-to-rail output swing down to the negative rail - enabling accurate amplification in battery-powered field transmitters and smoke detectors operating from 3V to 16V.

For engineers reviewing the TLC27L2ACPS datasheet, TLC27L2ACPS pinout, TLC27L2ACPS application, or TLC27L2ACPS equivalent, key selection criteria include input offset voltage grade (5 mV), SOIC-8 package compatibility, −0.2 V to 3.5 V common-mode input range at 5 V supply, and guaranteed operation from 0°C to 70°C.

Technical Context

The TLC27L2ACPS uses Texas Instruments' LinCMOS™ silicon-gate process to achieve high input impedance (10¹² Ω typical) and femtoamp-level bias currents while maintaining latch-up immunity and ESD protection up to 2000 V. Its architecture supports single-supply operation with input common-mode range extending below ground, making it suitable for direct interfacing with grounded-sensor configurations.

It features two independent amplifiers sharing one 8-pin SOIC package, each with noninverting/inverting inputs and dedicated output. The device exhibits stable unity-gain performance (85 kHz bandwidth, 34° phase margin at 25°C) and low 68 nV/√Hz input noise - critical for high-resolution analog front-ends in industrial sensing.

Key Specifications

Pinout & Package

The TLC27L2ACPS is housed in an 8-pin SOIC (Small Outline Integrated Circuit) package with standard 1.27 mm pitch, compatible with automated SMT placement and reflow profiles per JEDEC J-STD-020.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual precision op amp applications.

Compared with TLC27L2CP and TLC27L2IPS, the TLC27L2ACPS provides optimal balance of precision (5 mV VIO), ultra-low power (34 µA), and commercial-temperature reliability in the industry-standard SOIC-8 footprint - making it the preferred choice for cost-sensitive, battery-powered industrial sensor nodes.

Availability

TLC27L2ACPS is available at Aetrix Electronics and suitable for smoke detector design, pressure transmitter manufacturing, and temperature transmitter development requiring stable component supply and long-lifecycle support.

Supply support for TLC27L2ACPS 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

Texas Instruments is a global semiconductor leader specializing in analog and embedded processing technologies, with over 90 years of innovation in precision analog ICs.

The TLC27Lx family was designed specifically for low-power, high-accuracy sensor signal conditioning in industrial and safety-critical measurement systems - emphasizing offset stability, rail-compatible operation, and robustness across temperature.

FAQ

What is the maximum input offset voltage specification for TLC27L2ACPS at 25°C?

The TLC27L2ACPS has a maximum input offset voltage of 5 mV at 25°C, as specified in the Electrical Characteristics table for C-suffix devices under VDD = 5 V conditions. This value is guaranteed across the 0°C to 70°C operating range, with a worst-case of 6.5 mV. The TLC27L2ACPS achieves this precision using TI's LinCMOS™ process, which provides superior offset stability versus metal-gate alternatives.

Does TLC27L2ACPS support true single-supply operation with input signals below ground?

Yes, the TLC27L2ACPS supports true single-supply operation with its common-mode input voltage range extending to −0.2 V at VDD = 5 V - meaning it can accept input signals slightly below the negative rail (GND). This capability is explicitly confirmed in Section 5.3 Recommended Operating Conditions and enables direct interfacing with grounded-sensor configurations such as 3-wire RTDs or shunt-based current sensing without level-shifting circuitry.

What package type is used for TLC27L2ACPS, and is it RoHS-compliant?

The TLC27L2ACPS uses an 8-pin SOIC (Small Outline Integrated Circuit) package, designated "PS" in TI's packaging nomenclature. It is lead-free and RoHS-compliant, meeting JEDEC standard MS-012 and complying with IPC/JEDEC J-STD-020 moisture sensitivity level (MSL) 1. The package dimensions and soldering profile follow industry-standard reflow guidelines for surface-mount assembly.

Can TLC27L2ACPS drive capacitive loads, and what is its phase margin?

The TLC27L2ACPS maintains stability with capacitive loads up to 20 pF, exhibiting a phase margin of 34° at 25°C under unity-gain conditions (VDD = 5 V, CL = 20 pF). This is verified in Section 5.5 Operating Characteristics. For loads exceeding 20 pF, external isolation resistance (e.g., 100 Ω in series with output) is recommended to preserve stability - a design consideration documented in TI's application notes for LinCMOS op amps.

How does the supply current of TLC27L2ACPS compare between 5 V and 10 V operation?

At 25°C, the TLC27L2ACPS draws 34 µA typical supply current with VDD = 5 V and 46 µA typical with VDD = 10 V - a 35% increase that scales nearly linearly with supply voltage. This behavior is consistent across temperature ranges and reflects the device's CMOS biasing architecture. The increase remains within specification limits (max 42 µA at 70°C, 5 V), ensuring predictable power budgeting in variable-voltage industrial systems.