Texas Instruments TLC271BCDR

Overview

TLC271BCDR from Texas Instruments is a programmable low-power LinCMOS™ operational amplifier in SOIC-8 package, featuring 2 mV max input offset voltage at 25°C, bias-select mode (high/medium/low), and rail-to-rail output swing down to negative rail. It operates from 3 V to 16 V supply over 0°C to 70°C and supports single-supply sensor signal conditioning in battery-powered instrumentation.

For engineers reviewing the TLC271BCDR datasheet, TLC271BCDR pinout, TLC271BCDR application, or TLC271BCDR equivalent, this page delivers verified specifications, bias-mode tradeoff guidance, SOIC-8 terminal mapping, and real-world use cases for precision analog front-ends requiring programmable power/performance scaling.

Technical Context

The TLC271BCDR implements a silicon-gate LinCMOS™ process enabling 10¹² Ω typical input impedance and sub-picoamp input bias current. Its bias-select architecture uses an external voltage on the BIAS SELECT pin to configure internal current sources, directly controlling slew rate (0.03–3.6 V/µs), unity-gain bandwidth (0.09–1.7 MHz), and supply current (50–3375 µW) across three discrete operating modes.

Input common-mode range extends below the negative rail (down to –0.2 V at VDD = 5 V), and output swings to within 50 mV of GND. ESD protection meets MIL-STD-883C, Method 3015.2 (2000 V), with latch-up immunity designed-in per JEDEC JESD78.

Key Specifications

Pinout & Package

Package: SOIC-8 (D package), tape-and-reel format (R suffix). Pinout matches standard 8-pin operational amplifier layout with dedicated BIAS SELECT control.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLC271ACDR and TLV271CDR, the TLC271BCDR provides the tightest initial offset (2 mV) and unique bias-select flexibility-enabling one hardware design to serve multiple performance tiers without layout changes.

Availability

TLC271BCDR is available at Aetrix Electronics and suitable for industrial sensor interfaces, portable instrumentation, and analog front-end signal conditioning requiring stable component supply across extended temperature and voltage ranges.

Supply support for TLC271BCDR 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 company headquartered in Dallas, Texas, delivering analog and embedded processing solutions for industrial, automotive, and personal electronics markets.

The TLC271 family belongs to TI's LinCMOS™ precision op-amp product line, engineered for applications demanding high input impedance, low drift, and programmable power/performance tradeoffs in resource-constrained analog signal paths.

FAQ

What is the maximum input offset voltage specification for TLC271BCDR at 25°C?

The TLC271BCDR has a maximum input offset voltage of 2 mV at 25°C, as specified in the "Available Options" table of the SLOS090D datasheet. This value applies to the C-suffix commercial-grade variant and is guaranteed across the 0°C to 70°C operating temperature range. The TLC271BCDR achieves this tighter offset grade using trimmed LinCMOS™ process technology, distinguishing it from the 5 mV TLC271ACDR and 10 mV TLC271CDR variants.

How does the BIAS SELECT pin function on the TLC271BCDR?

The BIAS SELECT pin on the TLC271BCDR configures internal current sources to select one of three operating modes: low bias (50 µW, 0.03 V/µs), medium bias (525 µW, 0.4 V/µs), or high bias (3375 µW, 3.6 V/µs). Connecting the pin to GND selects low bias, to VDD/2 selects medium bias (requiring a resistive divider in single-supply setups), and to VDD selects high bias. This allows dynamic optimization of power, speed, and noise without changing external components or PCB layout.

What is the operating temperature range for the TLC271BCDR?

The TLC271BCDR is rated for operation from 0°C to 70°C, consistent with its C-suffix designation. This commercial temperature grade is validated per the "recommended operating conditions" table in the SLOS090D datasheet. The device supports supply voltages from 3 V to 16 V across this full range, with key parameters-including input offset voltage, common-mode input range, and output swing-guaranteed over the entire 0°C to 70°C interval.

Does the TLC271BCDR support rail-to-rail input or output operation?

The TLC271BCDR supports rail-to-rail output operation-its output swings to within 50 mV of GND and to within 1.2 V of VDD-but does not provide rail-to-rail input common-mode range. Its input common-mode voltage extends to –0.2 V below GND at VDD = 5 V (i.e., below the negative rail), but the upper limit is VDD – 1.5 V. This asymmetric input range is optimized for single-supply applications where sensing below ground is required, but full rail-to-rail input is not supported.

What package type and packaging format does the TLC271BCDR use?

The TLC271BCDR uses the SOIC-8 (D) package, as confirmed by the "AVAILABLE OPTIONS" table and mechanical drawings in the SLOS090D datasheet. The "R" suffix explicitly denotes tape-and-reel packaging per the note: "The D package is available taped and reeled. Add R suffix to the device type (e.g., TLC271BCDR)." This format supports automated SMT assembly and is compatible with standard 1.27 mm pitch pick-and-place equipment.