Texas Instruments TLC2272IP

Overview

TLC2272IP from Texas Instruments is a dual rail-to-rail output operational amplifier designed for precision signal conditioning in single- or split-supply systems. It delivers 2.2-MHz gain-bandwidth, 3.6-V/µs slew rate, 9 nV/√Hz input voltage noise at 1 kHz, ±5-V supply operation, and rail-to-rail output swing - enabling high-fidelity interfacing with ADCs in battery-powered sensor front-ends.

For engineers reviewing the TLC2272IP datasheet, TLC2272IP pinout, TLC2272IP application, or TLC2272IP equivalent, key selection criteria include input offset voltage (≤950 µV max), ultra-low input bias current (1 pA typ), common-mode input range extending to negative rail, low quiescent current (2.4 mA typ at ±5 V), and SOIC-8 package compatibility with legacy PCB layouts.

Technical Context

The TLC2272IP uses advanced LinCMOS process technology to achieve rail-to-rail output swing while maintaining low input bias current and low noise. Its input stage supports common-mode voltages down to VDD−, and its output stage drives within 15 mV of either rail under light load (±20 µA).

It operates across ±2.2 V to ±8 V supply ranges, exhibits 75 dB typical CMRR and 95 dB typical PSRR at ±5 V, and maintains stable unity-gain performance with 52° phase margin into 10-kΩ//100-pF loads - confirming robust small-signal and transient response for closed-loop transducer amplification.

Key Specifications

Pinout & Package

TLC2272IP is supplied in an 8-pin SOIC (Small Outline Integrated Circuit) package, body size 3.91 mm × 4.90 mm, with standard JEDEC MS-012AC footprint and gull-wing leads.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual rail-to-rail operational amplifier applications.

Compared with TLC2272CDR and TLV2432IDR, the TLC2272IP uniquely balances industrial temperature rating, ultra-low input bias, and low noise - making it the preferred choice for high-accuracy, wide-temperature analog front-ends where sensor fidelity and long-term stability are critical.

Availability

TLC2272IP is available at Aetrix Electronics and suitable for white goods control, battery-powered monitoring systems, and transducer interface circuits requiring stable component supply across extended temperature ranges and multi-year production cycles.

Supply support for TLC2272IP 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 company headquartered in Dallas, Texas, delivering analog, embedded processing, and connectivity solutions for industrial, automotive, and personal electronics markets.

The TLC227x family was engineered as a precision, low-noise, rail-to-rail output upgrade path for legacy TLC27x op-amps - targeting high-impedance sensor interfaces, portable instrumentation, and industrial control systems demanding accuracy and reliability.

FAQ

What is the maximum supply voltage range supported by the TLC2272IP?

The TLC2272IP supports a total supply voltage range of ±2.2 V to ±8 V (i.e., 4.4 V to 16 V across both rails). Absolute maximum ratings specify ±8 V on VDD+ and VDD− individually. Operation outside this range risks permanent damage. The device is fully characterized across the recommended range, including rail-to-rail output functionality and specified input common-mode range.

Does the TLC2272IP feature rail-to-rail input capability?

No, the TLC2272IP provides rail-to-rail *output* swing only. Its common-mode input voltage range extends to the negative rail (VDD−/GND) but stops 1.5 V below the positive rail (VDD+) - for example, 0 V to 3.5 V with a +5-V supply. This allows ground-referenced inputs in single-supply use but requires input signal biasing above VDD− + 1.5 V when using higher positive supplies.

What is the guaranteed maximum input offset voltage for the TLC2272IP at room temperature?

The TLC2272IP is the industrial-grade version of the TLC2272A family. Its guaranteed maximum input offset voltage is 950 µV at TA = 25°C, as explicitly stated in the "TLC2272 and TLC2272A Electrical Characteristics" tables for both VDD = 5 V and VDD± = ±5 V conditions. This specification applies across all operating conditions unless otherwise noted.

Can the TLC2272IP drive a 10-kΩ load while maintaining rail-to-rail output swing?

Yes. The TLC2272IP maintains rail-to-rail output swing into 10-kΩ loads. At ±5-V supplies and IO = ±20 µA, output swing reaches within 15 mV of each rail (VOM+ = +4.99 V, VOM− = −4.99 V). Even at ±1-mA loads, it delivers +4.25 V and −4.25 V - sufficient for most 12-bit and 16-bit ADC interfaces without external level-shifting circuitry.

How does the TLC2272IP compare to the TLC272 in terms of noise and input offset voltage?

The TLC2272IP improves significantly over the TLC272: input voltage noise is 9 nV/√Hz (vs. 18 nV/√Hz for TLC272), and maximum input offset voltage is 950 µV (vs. 2.5 mV for TLC272). These enhancements enable higher-resolution measurements in low-amplitude sensor applications, such as strain gauge or thermocouple amplification, where noise floor and DC error directly limit system accuracy.