Texas Instruments TLC271BIDG4

Overview

TLC271BIDG4 from Texas Instruments is a programmable low-power LinCMOS™ operational amplifier with 2 mV max input offset voltage, high input impedance (10¹² Ω), and bias-select functionality enabling high/medium/low power–performance tradeoffs. It operates from 4 V to 16 V across –40°C to 85°C and supports single-supply operation with rail-to-rail output swing down to the negative rail - ideal for precision sensor signal conditioning in industrial monitoring systems.

For engineers reviewing the TLC271BIDG4 datasheet, TLC271BIDG4 pinout, TLC271BIDG4 application, or TLC271BIDG4 equivalent, key selection criteria include its programmable bias modes (affecting slew rate, noise, and bandwidth), guaranteed 2 mV VIO over temperature, ESD-protected inputs (2000 V HBM), and D-package thermal performance up to 85°C ambient.

Technical Context

The TLC271BIDG4 implements a silicon-gate LinCMOS™ process delivering stable offset voltage drift (0.1 µV/month) and ultra-low input bias current (≤60 pA typ at 25°C). Its bias-select pin enables dynamic configuration of three distinct operating modes: high-bias (3.6 V/µs slew rate, 25 nV/√Hz noise), medium-bias (0.4 V/µs, 32 nV/√Hz), and low-bias (0.03 V/µs, 68 nV/√Hz), each with corresponding unity-gain bandwidth (1.7 MHz / 0.5 MHz / 0.09 MHz).

It features rail-inclusive common-mode input range (extends below GND), differential voltage amplification ≥23 V/mV, CMRR ≥60 dB, and supply-voltage rejection ratio ≥60 dB - all specified across its full –40°C to 85°C operating range with 4 V to 16 V supply.

Key Specifications

Pinout & Package

The TLC271BIDG4 is housed in an 8-pin SOIC (D) package (5.3 mm × 6.2 mm, 1.75 mm height), RoHS-compliant and tape-and-reel ready (suffix 'G4' denotes green packaging).

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLC271BCD, the TLC271BIDG4 offers extended temperature operation and identical precision; versus TLV2462IDR, it trades rail-to-rail input for wider supply range and programmable bias-making it superior for industrial analog front-ends requiring configurability and robustness.

Availability

TLC271BIDG4 is available at Aetrix Electronics and suitable for industrial sensor interfaces, portable instrumentation, remote monitoring systems, and analog computing circuits requiring stable component supply across extended temperature ranges and long product lifecycles.

Supply support for TLC271BIDG4 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, embedded processing, and connectivity technologies, with decades of heritage in precision op-amp design and manufacturing.

The TLC271 family was engineered to replace bipolar and BiFET op-amps in cost-sensitive, low-power, high-impedance applications-delivering LinCMOS™ performance without the power penalty.

FAQ

What is the maximum input offset voltage specification for the TLC271BIDG4?

The TLC271BIDG4 has a maximum input offset voltage of 2 mV at 25°C, tested across the full –40°C to 85°C operating range. This grade ('B') is the lowest-offset variant in the TLC271 family and is validated per TI's SLOS090D datasheet, Table 1 for I-suffix devices. The 2 mV limit ensures predictable DC accuracy in precision gain stages without external trimming.

How does the bias-select pin function on the TLC271BIDG4?

The bias-select pin (Pin 5) on the TLC271BIDG4 configures one of three operating modes: connect to GND for low-bias (50 µW, 0.03 V/µs), to VDD/2 for medium-bias (525 µW, 0.4 V/µs), or to VDD for high-bias (3375 µW, 3.6 V/µs). Each mode alters slew rate, noise, bandwidth, and supply current - allowing dynamic optimization of the TLC271BIDG4 for specific signal-chain requirements.

Does the TLC271BIDG4 support single-supply operation?

Yes, the TLC271BIDG4 fully supports single-supply operation from 4 V to 16 V across –40°C to 85°C. Its common-mode input range extends 0.2 V below GND (at VDD = 5 V), and the output swings to within 50 mV of GND - enabling direct interfacing with ground-referenced sensors and driving ADCs without dual supplies.

What package type and lead finish does the TLC271BIDG4 use?

The TLC271BIDG4 uses an 8-pin SOIC (D) package measuring 5.3 mm × 6.2 mm with 1.75 mm height. The 'G4' suffix indicates a lead-free, RoHS-compliant matte tin finish and tape-and-reel packaging - compatible with standard surface-mount assembly processes and IPC/JEDEC moisture sensitivity level 1.

Is the TLC271BIDG4 pin-compatible with other variants in the TLC271 family?

Yes, the TLC271BIDG4 shares identical pinout and footprint with all TLC271x variants in the D-package (e.g., TLC271CD, TLC271ACD, TLC271BID), including offset-null pins (1 and 8), bias-select (5), and standard op-amp terminals. This allows drop-in replacement across grades and temperature ranges - provided the application's temperature and offset requirements align with the selected variant.