Texas Instruments TLC27L2MD

Overview

TLC27L2MD from Texas Instruments is a precision dual CMOS operational amplifier optimized for ultra-low-power, single-supply operation across military temperature range (−55°C to +125°C), featuring 10 mV max input offset voltage at 25°C, 34 µA typical supply current (two amplifiers), and rail-to-rail output swing capability with common-mode input extending to the negative rail. It serves as a signal-conditioning front-end in battery-powered field transmitters and industrial sensor interfaces.

For engineers reviewing the TLC27L2MD datasheet, TLC27L2MD pinout, TLC27L2MD application, or TLC27L2MD equivalent, this page delivers verified specifications, military-grade thermal performance data, LinCMOS™-enabled low-input-bias-current design context, and real-world use cases in pressure/temperature transmitter circuits requiring stable DC precision under wide ambient extremes.

Technical Context

The TLC27L2MD uses Texas Instruments' silicon-gate LinCMOS™ process, delivering high input impedance (10¹² Ω typ), ultra-low input bias current (0.6 pA typ at 25°C), and latch-up immunity-key for high-impedance sensor interfacing. Its architecture supports single-supply operation down to 4 V over −55°C to +125°C, with common-mode input range including the negative rail and output swing to within 50 mV of ground.

Designed for precision analog signal conditioning, it provides 50 V/mV minimum large-signal voltage gain, 85 kHz unity-gain bandwidth at 5 V, and 65 dB minimum CMRR across its full operating temperature range-enabling robust performance in noisy industrial environments without external trimming.

Key Specifications

Pinout & Package

Package: SOIC-8 (D package), 3.9 mm × 4.9 mm body, 1.27 mm pitch, gull-wing leads.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLC27L2CD, the TLC27L2MD adds −55°C to +125°C operation and enhanced screening, while OPA2333MDRG4 trades ultra-low drift for higher quiescent current-making TLC27L2MD optimal for ruggedized, long-life, low-power sensor signal chains where moderate initial offset is acceptable.

Availability

TLC27L2MD is available at Aetrix Electronics and suitable for pressure transmitter design, temperature sensor interface development, and smoke detector manufacturing requiring stable component supply across extended temperature ranges and multi-year production cycles.

Supply support for TLC27L2MD 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 amps and industrial-grade ICs.

The TLC27Lx family was designed specifically for low-power, high-impedance sensor signal conditioning in harsh environments-emphasizing LinCMOS™ stability, military-grade thermal resilience, and single-supply usability.

FAQ

What is the maximum operating supply voltage for TLC27L2MD?

The absolute maximum supply voltage for TLC27L2MD is 18 V, but the recommended operating range is 4 V to 16 V across its full −55°C to +125°C temperature range. Operation above 16 V risks parametric degradation and reduced reliability, especially at high temperatures. The TLC27L2MD maintains specified performance up to 16 V, enabling compatibility with standard industrial 12 V and 15 V rails.

Does TLC27L2MD support true single-supply operation with input signals at ground?

Yes, TLC27L2MD supports true single-supply operation with its common-mode input voltage range extending to the negative rail (GND). At 25°C and VDD = 5 V, the common-mode range is 0 V to 3.5 V; at 125°C, it remains 0 V to 3.5 V. This allows direct interfacing with grounded sensors such as strain gauges, thermocouples, and current-shunt monitors without level-shifting circuitry.

What is the typical input bias current of TLC27L2MD at 125°C?

At 125°C and VDD = 5 V, the typical input bias current of TLC27L2MD is 9 nA (max 35 nA), per the Electrical Characteristics table (Section 5.12). This represents a controlled increase from 0.6 pA at 25°C due to leakage in the LinCMOS™ gate oxide-still sufficiently low to avoid significant error in sensor interfaces with source impedances up to 10 MΩ at elevated temperature.

Can TLC27L2MD drive capacitive loads directly?

TLC27L2MD exhibits stable phase margin (≥30°) with up to 20 pF capacitive load at unity gain, per Figure 5-29 and Section 5.13. Driving larger capacitive loads (e.g., >50 pF) requires isolation via a series resistor (≥100 Ω) or external compensation to prevent peaking or oscillation-especially critical in PCB traces feeding ADC inputs or long cables in field transmitter designs.

Is TLC27L2MD pin-compatible with other TLC27Lx variants?

Yes, TLC27L2MD is pin-compatible with all TLC27Lx dual op amps in the SOIC-8 (D) package-including TLC27L2CD, TLC27L2ID, and TLC27L7MD. All share identical pinout (1IN+, 1IN–, 1OUT, GND, 2IN+, 2IN–, VDD, NC), allowing drop-in replacement for different offset grades or temperature ratings without layout changes.