Texas Instruments TLC272BCD

Overview

TLC272BCD from Texas Instruments is a precision dual CMOS operational amplifier optimized for single-supply operation, featuring 2 mV max input offset voltage (25°C), 10.8 nV/√Hz input voltage noise at 1 kHz, and rail-to-rail output swing down to the negative rail. It operates from 3 V to 16 V over 0°C to 70°C and delivers 4.5 MHz unity-gain bandwidth - enabling high-fidelity signal conditioning in battery-powered sensor front-ends and industrial analog interfaces.

For engineers reviewing the TLC272BCD datasheet, TLC272BCD pinout, TLC272BCD application, or TLC272BCD equivalent, key selection considerations include its low input bias current (<60 pA), wide common-mode input range extending below ground, and compatibility with TTL/HCMOS supply rails - critical when upgrading legacy bipolar op-amp designs or implementing low-power, high-impedance sensing circuits.

Technical Context

The TLC272BCD uses a polysilicon-gate CMOS process to achieve ultra-high input impedance (>10¹² Ω) and sub-picoampere input bias current, minimizing loading on high-impedance sources like piezoelectric sensors or pH electrodes. Its input stage supports common-mode voltages down to –0.1 V (at VDD = 5 V), enabling true single-supply operation without level-shifting circuitry.

Internally, it integrates ESD protection and latch-up immunity, and its output stage drives ±30 mA while maintaining low-level output voltage ≤50 mV (IOL = 0). The device exhibits 65–80 dB CMRR and 65–120 dB PSRR across temperature, supporting stable performance in noisy industrial environments.

Key Specifications

Pinout & Package

SOIC-8 (D package), 4.9 mm × 6.0 mm body, 1.27 mm pitch, surface-mount. RoHS-compliant, moisture sensitivity level 1.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLV2462IDR and OPA2333AIDR, the TLC272BCD offers the best balance of moderate DC precision (2 mV VIO), wide bandwidth (4.5 MHz), low noise (10.8 nV/√Hz), and broad supply range (3–16 V) - making it ideal for cost-sensitive, medium-speed industrial and portable analog signal chains where zero-drift or rail-to-rail input isn't required.

Availability

TLC272BCD is available at Aetrix Electronics and suitable for industrial sensor signal conditioning, portable medical instrumentation, automotive cabin environment sensing, and educational analog lab platforms requiring stable component supply across extended temperature and voltage ranges.

Supply support for TLC272BCD 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 decades of heritage in precision op-amp design and manufacturing.

The TLC27xx family was engineered to replace bipolar op-amps in cost-sensitive, single-supply applications - delivering CMOS advantages (ultra-low IB, high ZIN, low noise) while maintaining BiFET-grade speed and robustness for industrial and instrumentation use cases.

FAQ

What is the maximum input offset voltage specification for TLC272BCD at 25°C?

The TLC272BCD has a maximum input offset voltage of 2 mV at 25°C, as specified in the Electrical Characteristics table for the TLC272BC grade under VDD = 5 V test conditions. This value is guaranteed across the full commercial temperature range (0°C to 70°C), making TLC272BCD suitable for applications requiring moderate DC precision without trimming.

Does TLC272BCD support true single-supply operation with input signals referenced to ground?

Yes, the TLC272BCD supports true single-supply operation: its common-mode input voltage range extends to –0.1 V (at VDD = 5 V) and its output swings to within 50 mV of the negative rail. This allows direct interface with ground-referenced sensors and eliminates the need for virtual ground circuitry in designs powered from 3–16 V supplies.

What is the typical input voltage noise density of TLC272BCD and at what frequency is it measured?

The TLC272BCD has a typical input voltage noise density of 10.8 nV/√Hz, measured at 1 kHz with RS = 20 Ω and TA = 25°C. This low noise performance - combined with sub-60 pA input bias current - makes TLC272BCD especially effective in high-impedance, medium-bandwidth signal chains such as thermocouple or piezoelectric sensor amplifiers.

Can TLC272BCD drive a 10 kΩ load while maintaining rail-to-rail output swing?

Yes, the TLC272BCD delivers rail-to-rail output swing into a 10 kΩ load: the low-level output voltage (VOL) is guaranteed ≤50 mV and high-level output voltage (VOH) ≥3.2 V (at VDD = 5 V, 25°C). This ensures >90% of full-scale dynamic range is preserved in single-supply data acquisition and analog output stages.

Is TLC272BCD pin-compatible with other devices in the TLC27xx family?

Yes, the TLC272BCD shares identical SOIC-8 pinout and electrical behavior with TLC272C, TLC272AC, TLC272AIDR, and TLC272BIDR - all members of the TLC27xx dual op-amp family. This allows direct substitution within the same package variant for offset voltage grade upgrades or downgrade without PCB changes.