Texas Instruments TLC2252AID

Overview

TLC2252AID from Texas Instruments is a dual rail-to-rail output, micropower operational amplifier optimized for precision, low-noise signal conditioning in battery-powered and high-impedance sensor interfaces. It delivers 35 µA per channel supply current, 19 nV/√Hz input voltage noise at 1 kHz, 1 pA typical input bias current, and 850 µV maximum input offset voltage at 25°C - enabling use in piezoelectric transducer amplification and portable medical monitoring.

For engineers reviewing the TLC2252AID datasheet, TLC2252AID pinout, TLC2252AID application, or TLC2252AID equivalent, key selection criteria include its rail-to-rail output swing (±4.8 V at ±5 V supplies), –40°C to 125°C operating range, low-power operation, and compatibility with single-supply (5 V) or split-supply (±5 V) configurations in analog front-end designs.

Technical Context

The TLC2252AID employs Advanced LinCMOS™ process technology to achieve rail-to-rail output swing while maintaining ultra-low input bias current (1 pA typ) and low noise - critical for interfacing with high-impedance sources like pH electrodes or photodiode transimpedance stages. Its common-mode input range extends to the negative rail, supporting ground-referenced sensing.

It features fully specified performance across ±2.2 V to ±8 V supply ranges and operates over –40°C to 125°C, with guaranteed 850 µV max V_IO and 70 dB min CMRR at full temperature range - making it suitable for automotive and industrial control loop amplifiers where thermal stability and supply rejection are essential.

Key Specifications

Pinout & Package

Package: SOIC-8 (D package), surface-mount, 150 mil width, JEDEC MS-012AC compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLV2432IDR and OPA2333AIDR, the TLC2252AID uniquely balances ultra-low power (35 µA), rail-to-rail output, and 1 pA input bias - making it optimal for battery-operated, high-impedance sensor nodes where speed and zero-drift are secondary to energy efficiency and interface simplicity.

Availability

TLC2252AID is available at Aetrix Electronics and suitable for industrial temperature transmitters, portable medical monitors, automotive knock sensors, and smart pressure transducers requiring stable component supply across extended temperature ranges and multi-year production cycles.

Supply support for TLC2252AID 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, embedded processing, and connectivity technologies, with over 90 years of innovation in precision analog IC design.

The TLC225x family was engineered for ultra-low-power, rail-to-rail signal conditioning in battery-constrained and high-impedance applications - targeting sensor interfaces, portable instrumentation, and automotive subsystems demanding robustness across wide temperature ranges.

FAQ

What is the maximum operating temperature range for the TLC2252AID?

The TLC2252AID is rated for operation from –40°C to +125°C ambient temperature, meeting industrial and automotive Grade 2 requirements. This specification is confirmed in the "Recommended Operating Conditions" table of the official SLOS176D datasheet, where the "I suffix" denotes the –40°C to 125°C range, and the "A" grade indicates enhanced input offset voltage performance (850 µV max at 25°C).

Does the TLC2252AID support single-supply operation?

Yes, the TLC2252AID fully supports single-supply operation at 5 V, with rail-to-rail output swing and common-mode input voltage range extending to the negative rail (GND). Per the datasheet's "Recommended Operating Conditions", it functions across VDD = 5 V (single) or VDD± = ±5 V (split), and its input stage remains functional down to VDD– (GND), enabling ground-referenced sensor interfaces without level-shifting circuitry.

What is the typical input bias current of the TLC2252AID, and why does it matter?

The TLC2252AID has a typical input bias current of 1 pA, with a maximum of 60 pA over temperature. This ultra-low value is critical when interfacing with high-impedance sources such as piezoelectric sensors, pH electrodes, or photodiodes - where even nanoamp-level bias currents would introduce significant voltage errors or signal attenuation. The 1 pA spec directly enables accurate charge amplification and long time-constant filtering without drift.

Can the TLC2252AID drive an ADC input directly?

Yes, the TLC2252AID can drive most SAR and delta-sigma ADC inputs directly due to its rail-to-rail output swing (e.g., 4.98 V at VDD+ = 5 V, IOH = –20 µA) and low output impedance (200 Ω at 25 kHz). Its 0.21 MHz GBW and 0.07–0.12 V/µs slew rate suit DC and low-frequency AC signals (<30 kHz full-swing bandwidth). For high-capacitance ADC inputs (>100 pF), a small series resistor (10–50 Ω) is recommended to ensure stability.

How does the TLC2252AID compare to the standard TLC2252ID in terms of precision?

The TLC2252AID is the "A-grade" variant of the TLC2252 family, featuring tighter input offset voltage specifications: 850 µV maximum at 25°C versus 1500 µV for the TLC2252ID. Both share identical packaging (SOIC-8), temperature range (–40°C to 125°C), supply current (35 µA/ch), and noise (19 nV/√Hz). The "A" designation reflects factory screening for lower V_IO, making TLC2252AID preferred for precision DC-coupled applications where initial offset error must be minimized without calibration.