Texas Instruments TLC272ID

Overview

TLC272ID from Texas Instruments is a precision dual CMOS operational amplifier optimized for single-supply operation, featuring 10 mV max input offset voltage (I-suffix grade), low input bias current (≤60 pA at 25°C), and rail-to-rail output swing down to the negative rail. It operates from 4 V to 16 V over –40°C to 85°C and delivers 4.5 MHz unity-gain bandwidth with 0.5 V/μs slew rate - ideal for sensor signal conditioning in industrial data acquisition systems.

For engineers reviewing the TLC272ID datasheet, TLC272ID pinout, TLC272ID application, or TLC272ID equivalent, key selection criteria include its guaranteed input common-mode range extending below ground, low 10.8 nV/√Hz input voltage noise at 1 kHz, and compatibility with 3.3 V–5 V logic interfacing without level-shifting circuitry.

Technical Context

The TLC272ID uses a polysilicon-gate CMOS process to achieve high input impedance (>10¹² Ω) and ultra-low input bias current, enabling accurate amplification of high-impedance sources such as piezoelectric sensors and pH electrodes. Its input stage supports common-mode voltages from –0.1 V to VDD – 1.5 V across temperature, and output can drive loads down to 0 V while sourcing/sinking ±30 mA.

Designed specifically for single-supply systems, the device avoids internal phase inversion and latch-up through built-in immunity circuits. It maintains stable operation with capacitive loads up to 20 pF and exhibits 60° phase margin at unity gain, supporting robust closed-loop configurations including active filters and transimpedance amplifiers.

Key Specifications

Pinout & Package

Package: SOIC-8 (D package), 4.9 mm × 6.0 mm body, 1.27 mm pitch, surface-mountable with standard reflow profiles.

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 TLC272ID offers balanced trade-offs: moderate offset (10 mV), low bias current (≤60 pA), and proven robustness in industrial temperature ranges - making it optimal for cost-sensitive, medium-precision analog signal chains where reliability and legacy design compatibility matter.

Availability

TLC272ID is available at Aetrix Electronics and suitable for industrial sensor interface, medical instrumentation, automotive body control, and test & measurement equipment requiring stable component supply across extended temperature ranges and multi-year production cycles.

Supply support for TLC272ID 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 delivering analog and embedded processing solutions, with over 50 years of op-amp innovation and broad manufacturing scale.

The TLC27xx family was engineered for cost-effective precision amplification in single-supply systems - targeting industrial automation, test equipment, and sensor signal chains where reliability, wide voltage range, and low input current are essential.

FAQ

What is the maximum operating temperature range for the TLC272ID?

The TLC272ID is rated for operation from –40°C to +85°C, meeting industrial temperature requirements. This range is validated across all electrical specifications including input offset voltage, common-mode rejection ratio, and supply current - ensuring consistent performance in harsh environments such as factory floors or automotive under-hood applications. The TLC272ID's guaranteed specs at 85°C make it suitable for uncooled enclosures in continuous-duty systems.

Does the TLC272ID support true rail-to-rail input operation?

No, the TLC272ID does not support rail-to-rail input. Its common-mode input voltage range extends to –0.1 V (below ground) and up to VDD – 1.5 V at temperatures other than 25°C. While this enables single-supply use with ground-referenced signals, the upper limit excludes the positive rail. For example, at VDD = 5 V and TA = 85°C, the maximum valid input is 3.5 V - requiring external level shifting for full-rail input signals.

Can the TLC272ID drive a 10 kΩ load while maintaining rail-to-rail output swing?

Yes, the TLC272ID drives a 10 kΩ load to within 50 mV of the negative rail (0 V) and to 4.95 V at VDD = 5 V and 25°C. Output swing remains functional across temperature: at –40°C and 85°C, VOL stays ≤50 mV and VOH remains ≥3 V under the same conditions. This behavior is specified in the Electrical Characteristics tables for both C- and I-suffix variants, confirming reliable operation in standard 5 V data acquisition interfaces.

What is the typical input bias current of the TLC272ID at 25°C?

The typical input bias current of the TLC272ID at 25°C is 10 pA, with a maximum of 60 pA. This ultra-low value is enabled by its polysilicon-gate CMOS input stage and allows direct connection to high-impedance sources like photodiodes, pH probes, and piezoelectric sensors without significant DC error. At 85°C, the max increases to 200 pA - still well below bipolar op-amps - preserving accuracy in elevated-temperature deployments.

Is the TLC272ID pin-compatible with other devices in the TLC27xx family?

Yes, the TLC272ID shares identical SOIC-8 pinout with TLC272CD, TLC272AID, TLC272BID, TLC277ID, and all D-package variants in the TLC27xx family. Pin functions - including dual amplifier inputs/outputs and shared supply rails - are fully aligned. This allows drop-in replacement for different offset grades (e.g., upgrading from TLC272ID to TLC277ID for tighter DC specs) without PCB layout changes, provided thermal and decoupling design margins accommodate differing supply current.