Texas Instruments TLE2142CP

Overview

TLE2142CP from Texas Instruments is a dual-channel, high-speed precision operational amplifier optimized for low-noise, wide-bandwidth signal conditioning in industrial and power electronics systems. It delivers 5.9MHz gain-bandwidth product, 27V/μs minimum slew rate, 10.5nV/√Hz input voltage noise at 1kHz, ±22V supply range, and 500μV maximum input offset voltage at 25°C - enabling accurate amplification in EV charging infrastructure and string inverter feedback loops.

For engineers reviewing the TLE2142CP datasheet, TLE2142CP pinout, TLE2142CP application, or TLE2142CP equivalent, key selection considerations include its Excalibur bipolar process for symmetrical slew rate, fast 430ns settling to 0.1% on 10V step, 10000pF capacitive load drive capability, and C-suffix temperature rating (0°C to 70°C) in PDIP-8 package.

Technical Context

The TLE2142CP uses TI's complementary bipolar Excalibur process to achieve simultaneous low audio-band noise (10.5nV/√Hz at 1kHz, 10Hz 1/f corner) and symmetrical 40V/μs typical slew rate. Its input stage supports differential inputs up to ±44V without damage, and it operates with single supplies from 4V to 44V or split supplies from ±2V to ±22V.

It features internal compensation, rail-to-rail output swing (VCC− + 0.1V to VCC+ − 1V), fast saturation recovery (150ns), and can be used as a comparator with 200ns open-loop propagation delay under TTL supply levels. The device maintains stable operation driving up to 10000pF loads.

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 OPA211IDR and LM7332MA/NOPB, the TLE2142CP uniquely combines offset-null capability, 10000pF load drive, and Excalibur bipolar performance-making it irreplaceable in legacy industrial designs requiring field-trimmed precision and robust capacitive loading.

Availability

TLE2142CP is available at Aetrix Electronics and suitable for EV charging infrastructure, industrial AC-DC converters, and fire alarm control panel (FACP) designs requiring stable component supply, long-term obsolescence management, and traceable sourcing.

Supply support for TLE2142CP 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 amplifiers and industrial-grade ICs.

The TLE214x family was engineered for high-fidelity, high-reliability signal conditioning in demanding industrial environments - emphasizing low noise, fast settling, and rugged input/output specifications over consumer-grade trade-offs.

FAQ

What is the operating temperature range for the TLE2142CP?

The TLE2142CP is characterized for operation from 0°C to 70°C, as indicated by the "C" suffix in the part number. This commercial-grade rating makes it suitable for indoor industrial equipment, power supplies, and control panels not exposed to extreme ambient conditions. The device's thermal impedance (θJA = 84.6°C/W for PDIP-8) supports reliable operation within this range under typical PCB layouts and airflow conditions. Always verify junction temperature in final design using actual power dissipation and board thermal characteristics.

Does the TLE2142CP support single-supply operation?

Yes, the TLE2142CP supports single-supply operation from 4V to 44V. Its input common-mode range extends to VCC− (ground in single-supply mode), and its output swings to within 0.1V of VCC− and 1V below VCC+, enabling effective use in 5V, 12V, or 24V systems. For optimal performance, bias the inputs within the specified VICR (e.g., 0V to 2.9V at VCC = 5V), and avoid exceeding absolute maximum ratings such as VI ≤ VCC+ − 0.3V.

Can the TLE2142CP drive heavy capacitive loads?

Yes, the TLE2142CP is explicitly rated to drive up to 10000pF without instability, a key differentiator among precision op-amps. This capability eliminates the need for external isolation resistors when interfacing with ADC input filters, long cables, or optocoupler LEDs. Stability is maintained due to internal compensation optimized for high-capacitance loads - confirmed by datasheet test conditions and phase margin (57°–58°) measurements at 100pF and 500pF.

How does the offset null functionality work on the TLE2142CP?

The TLE2142CP provides dedicated offset null pins (1 and 5) to adjust input offset voltage manually using an external potentiometer. Pin 1 connects to the wiper of a 5kΩ pot, while Pin 5 connects to one end through a 1kΩ resistor tied to VCC−. This circuit injects opposing currents into the input stage to cancel VIO - critical for applications requiring sub-millivolt accuracy after PCB assembly, such as precision voltage references or calibrated sensor interfaces. The null range covers ±5mV, sufficient to correct initial VIO and low-drift aging effects.

Is the TLE2142CP suitable for use as a comparator?

Yes, the TLE2142CP can be used as a comparator, with documented open-loop propagation delay of ~200ns under TTL supply levels and fast saturation recovery of 150ns. However, it lacks built-in hysteresis or rail-to-rail output logic compatibility. When used in comparator mode, ensure input differential voltage stays within ±44V, avoid sustained saturation beyond recommended output swing, and add external hysteresis if noise immunity is required. For dedicated comparator functions, TI recommends devices like TLV3501 - but TLE2142CP offers dual-use flexibility in space-constrained designs.