Texas Instruments TLE2141IDR

Overview

TLE2141IDR from Texas Instruments is a high-speed, low-noise precision operational amplifier designed for demanding signal conditioning in industrial and power electronics systems. 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 accurate amplification in EV charging infrastructure and fire alarm control panels.

For engineers reviewing the TLE2141IDR datasheet, TLE2141IDR pinout, TLE2141IDR application, or TLE2141IDR equivalent, this page provides verified electrical specifications, thermal performance data, I-suffix temperature-grade validation (−40°C to 105°C), SOIC-8 package mapping, and real-world use cases in high-reliability analog front-ends where low distortion and fast settling are critical.

Technical Context

The TLE2141IDR uses TI's Excalibur complementary bipolar process to achieve simultaneous low audio-band noise (10.5nV/√Hz, 10Hz 1/f corner) and symmetrical 40V/μs slew rate with up to 800pF capacitive load drive capability. Its input stage supports differential inputs across full supply rails without damage.

It operates as both precision op amp and comparator, with open-loop propagation delay of ~200ns at TTL levels and saturation recovery time of 150ns. The device maintains stable operation under heavy capacitive loads (up to 10,000pF) and delivers rail-to-rail output swing within 1V of supply rails (VCC− + 0.1V to VCC+ − 1V).

Key Specifications

Pinout & Package

Package: SOIC-8 (D package), 4.9mm × 6mm body size, surface-mount, plastic dual in-line.

Key Features

Applications

Equivalent & Alternatives

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

Compared with OPA211IDR and LT1028CS8#PBF, the TLE2141IDR uniquely balances wide supply range (±22V), industrial temperature qualification, and low 1/f noise - making it optimal for cost-sensitive, high-reliability power electronics where rail flexibility and thermal robustness outweigh ultra-low-noise needs.

Availability

TLE2141IDR is available at Aetrix Electronics and suitable for EV charging infrastructure, fire alarm control panels, and industrial AC-DC power supplies requiring stable component supply across extended temperature and voltage ranges.

Supply support for TLE2141IDR 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 high-reliability industrial and automotive ICs.

The TLE214x family was engineered for precision analog signal chains in harsh environments - delivering low noise, high speed, and robust operation across wide voltage and temperature ranges for industrial power and safety-critical systems.

FAQ

What is the maximum capacitive load the TLE2141IDR can drive without instability?

The TLE2141IDR is specified to drive up to 10,000pF while maintaining stable operation, as confirmed in its datasheet Features section. This capability eliminates the need for series isolation resistors in applications such as driving long PCB traces, cable-connected sensors, or ADC input filters - a key advantage over many general-purpose op amps that require compensation for loads above 100pF. The TLE2141IDR achieves this through optimized internal compensation and robust output stage design.

Does the TLE2141IDR support single-supply operation?

Yes, the TLE2141IDR supports single-supply operation from 4V to 44V total supply range (e.g., 0V and +12V, or 0V and +24V). Its input common-mode range extends to VCC− (ground in single-supply mode), and its output swings to within 0.1V of ground and within 1V of VCC+, enabling true single-supply functionality in battery monitors and portable instrumentation. The TLE2141IDR datasheet explicitly lists "Single or split supply: 4V to 44V" as a core feature.

What is the guaranteed input offset voltage specification for TLE2141IDR over temperature?

The TLE2141IDR has a maximum input offset voltage of 500μV at 25°C, and its temperature coefficient is 1.7μV/°C (full range). Over its rated operating temperature range of −40°C to 105°C, the worst-case offset is calculated as 500μV + (1.7μV/°C × 145°C) ≈ 2965μV, though actual production units typically remain well below this bound. This specification is validated in Section 5.5 of the TLE2141 datasheet for I-suffix devices under ±15V conditions.

Can the TLE2141IDR be used as a comparator?

Yes, the TLE2141IDR can be used as a comparator, as stated in the official TI datasheet Description section: "Both versions can also be used as comparators." Its open-loop propagation delay is ~200ns with TTL supply levels, and saturation recovery time is 150ns - making it viable for moderate-speed window detection or overvoltage latch applications. However, dedicated comparators offer faster response and built-in hysteresis; the TLE2141IDR is best applied where precision op amp functionality and occasional comparator use coexist in one footprint.

What is the thermal resistance (θJA) of the TLE2141IDR in its SOIC-8 package?

The TLE2141IDR in the SOIC-8 (D) package has a junction-to-ambient thermal resistance (θJA) of 97.1°C/W, as specified in Section 5.1 Absolute Maximum Ratings of the TI datasheet. This value assumes standard JEDEC 2-layer board conditions (1-inch² copper pad). For high-power applications, designers should verify junction temperature using TJ = TA + (PD × θJA), where PD is the actual power dissipation - especially important given the TLE2141IDR's 4.5mA typical supply current and output loading conditions.