Texas Instruments TLC272ACDR

Overview

TLC272ACDR from Texas Instruments is a precision dual CMOS operational amplifier optimized for single-supply operation, featuring 5 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–70°C and delivers 4.5 MHz unity-gain bandwidth with 0.5 V/μs slew rate - enabling high-fidelity signal conditioning in battery-powered sensor interfaces and industrial analog front-ends.

For engineers reviewing the TLC272ACDR datasheet, TLC272ACDR pinout, TLC272ACDR application, or TLC272ACDR equivalent, key selection criteria include its low input bias current (<60 pA), wide common-mode input range extending below ground, ESD-protected architecture, and SOIC-8 packaging compatible with automated PCB assembly.

Technical Context

The TLC272ACDR employs 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 and 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, the device integrates latch-up immunity and ESD protection circuitry. Its open-loop gain exceeds 5 V/mV (134 dB), with 65–80 dB common-mode and supply-voltage rejection across temperature, ensuring stable performance in noisy industrial environments where supply ripple and ground bounce are present.

Key Specifications

Pinout & Package

Package: SOIC-8 (D package), 4.9 mm × 6.0 mm body, 1.27 mm pitch, surface-mount, tape-and-reel compatible.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLC272ACDR, TLV2462IDR offers tighter DC specs and rail-to-rail input at higher supply current, while OPA2333AIDR provides zero-drift stability at the cost of bandwidth and speed - making TLC272ACDR the balanced choice for general-purpose precision amplification with single-supply convenience.

Availability

TLC272ACDR is available at Aetrix Electronics and suitable for medical instrumentation, industrial sensor signal conditioning, and portable data acquisition requiring stable component supply, long-lifecycle support, and consistent parametric performance across production batches.

Supply support for TLC272ACDR 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 expertise in precision op-amps and industrial-grade signal-chain solutions.

The TLC272 family was designed for cost-effective, high-accuracy analog signal conditioning in single-supply systems - targeting applications where BiFET performance was previously required but CMOS reliability and integration were preferred.

FAQ

What is the maximum input common-mode voltage range for TLC272ACDR at 5 V supply?

At VDD = 5 V and TA = 25°C, the TLC272ACDR supports a common-mode input voltage range of –0.1 V to 4 V. This extends below ground, enabling direct connection to ground-referenced sensors. The upper limit degrades to 3.5 V across the full 0°C–70°C operating range, per the datasheet's VICR specification table.

Does TLC272ACDR support true rail-to-rail input operation?

No, TLC272ACDR does not support rail-to-rail input. Its common-mode input range extends to the negative rail (–0.1 V) but stops at VDD – 1 V (4 V at 5 V supply) at 25°C. It is rail-to-rail on the output side only - the input stage is optimized for single-supply convenience, not full rail coverage.

Can TLC272ACDR drive a 10 kΩ load while maintaining specified output swing?

Yes. The TLC272ACDR guarantees low-level output voltage ≤50 mV above ground and high-level output voltage ≥3.2 V (at VDD = 5 V, 25°C) into a 10 kΩ load. These values meet the "Output Voltage Swing" specifications in Section 4.3 of the datasheet, confirming full compliance under standard test conditions.

What is the typical supply current for TLC272ACDR at 5 V and 25°C?

The typical supply current for TLC272ACDR is 1.12 mA per amplifier, or 2.24 mA total for both channels, measured at VDD = 5 V, VO = 2.5 V, no load, and VIC = 2.5 V. Maximum IDD is 3.2 mA total across temperature, as specified in the Electrical Characteristics tables.

Is TLC272ACDR pin-compatible with other devices in the TLC27x family?

Yes, TLC272ACDR shares the same SOIC-8 (D) package and pinout with TLC272CDR, TLC272BCDR, TLC277CDR, and all C-suffix variants in the TLC27x family. Pin functions and physical layout are identical - only electrical parameters (e.g., VIO grade, drift) differ between grades.