Texas Instruments TLE2141ACP

Overview

TLE2141ACP from Texas Instruments is a high-speed, low-noise precision operational amplifier built on the Excalibur complementary bipolar process. It delivers 5.9MHz gain-bandwidth, 27V/μs slew rate (±15V supply), 10.5nV/√Hz input noise at 1kHz, ±22V supply range, and 500μV max input offset voltage at 25°C - enabling high-fidelity signal conditioning in industrial power electronics.

For engineers reviewing the TLE2141ACP datasheet, TLE2141ACP pinout, TLE2141ACP application, or TLE2141ACP equivalent, key selection considerations include its 8-pin PDIP package, rail-to-rail output swing capability (VCC− + 0.1V to VCC+ − 1V), fast 340ns settling to 0.1%, and suitability for EV charging infrastructure, string inverters, and fire alarm control panels where precision, speed, and noise immunity are critical.

Technical Context

The TLE2141ACP uses a symmetrical input stage optimized for low audio-band noise (10.5nV/√Hz) with a 10Hz 1/f corner and balanced 40V/μs slew rate under 800pF load. Its internal compensation ensures stability with capacitive loads up to 10000pF without external compensation.

It supports single-supply (4V–44V) or split-supply (±2V–±22V) operation, features differential input tolerance to ±44V, and includes an offset null circuit (pins 1 & 5) for fine-tuning. Open-loop propagation delay is ~200ns with TTL levels, indicating robust saturation recovery (150ns).

Key Specifications

Pinout & Package

Package: PDIP-8 (Plastic Dual In-line Package), 9.81mm × 9.43mm, rated for 0°C to 70°C (C-suffix).

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLE2141ACP, OPA211IDR offers superior noise and offset performance but lacks hardware trim capability and robust capacitive load drive, while LM7332MA/NOPB provides stronger output drive and rail-to-rail operation at the expense of bandwidth and noise floor - making TLE2141ACP optimal for calibrated, high-speed industrial sensing where stability with large capacitance is essential.

Availability

TLE2141ACP is available at Aetrix Electronics and suitable for EV charging infrastructure, industrial AC-DC converters, and fire alarm control panels requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for TLE2141ACP 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 signal chain solutions.

The TLE214x family was engineered for high-reliability industrial applications demanding low noise, fast settling, and robust operation under capacitive loading - particularly in power conversion, energy infrastructure, and safety-critical monitoring systems.

FAQ

What is the maximum capacitive load the TLE2141ACP can drive without oscillation?

The TLE2141ACP is characterized to drive up to 10000pF stably without external compensation, thanks to its internal compensation architecture optimized for high-capacitance loads. This capability eliminates series isolation resistors in applications like ADC driver stages or long-cable transmission, preserving signal fidelity and reducing component count. The 57° phase margin at unity gain with 100pF load confirms robust stability margins extend well beyond typical design requirements.

Does the TLE2141ACP support single-supply operation, and what is the minimum supply voltage?

Yes, the TLE2141ACP supports true single-supply operation from 4V to 44V. At 4V, it maintains functional common-mode input range (0V to 2.9V) and usable output swing (0.1V to 3.0V). This makes it suitable for low-voltage industrial controllers and battery-powered test equipment where rail efficiency and headroom are constrained. The device's input stage operates down to VCC− − 0.3V, ensuring compatibility with ground-referenced inputs.

How does the offset null circuit work on the TLE2141ACP, and what potentiometer value is recommended?

The TLE2141ACP provides dedicated OFFSET N1 (pin 1) and OFFSET N2 (pin 5) terminals for external nulling. A 10kΩ potentiometer is connected between these pins, with its wiper grounded; adjusting the wiper trims input offset voltage to <100μV. This hardware calibration is essential in precision applications like weigh scales or calibration standards where digital correction is impractical. The circuit draws negligible current, avoiding loading effects on the potentiometer.

Can the TLE2141ACP be used as a comparator, and what is its typical propagation delay?

Yes, the TLE2141ACP can operate as a comparator with differential inputs rated to ±44V and open-loop propagation delay of ~200ns under TTL supply conditions. While not optimized for comparator duty, its fast saturation recovery (150ns) and rail-to-rail output make it viable for moderate-speed window-detection or overvoltage latch functions in power supplies. For dedicated comparator applications, TI recommends devices like TLV3501, but TLE2141ACP offers integrated functionality where op-amp and comparator roles share signal paths.

What is the thermal resistance (θJA) of the TLE2141ACP in its PDIP-8 package?

For the TLE2141ACP in the PDIP-8 (P) package, the junction-to-ambient thermal resistance (θJA) is 84.6°C/W, measured per JESD 51-7. This value assumes standard JEDEC 2S2P board conditions. At maximum ambient temperature (70°C) and 4.6mA supply current (max ICC), power dissipation remains below 100mW - keeping junction temperature safely below 150°C. Derating is advised above 50°C ambient for continuous high-output-current operation.