Texas Instruments TLC2274CPWR

Overview

TLC2274CPWR from Texas Instruments is a quad rail-to-rail output operational amplifier in TSSOP-14 package, delivering 2.2-MHz gain-bandwidth, 3.6-V/µs slew rate, 9 nV/√Hz input voltage noise at 1 kHz, 1-pA typical input bias current, and ±5-V supply operation with output swing to both rails. It serves precision signal conditioning in battery-powered sensor interfaces and ADC driver stages.

For engineers reviewing the TLC2274CPWR datasheet, TLC2274CPWR pinout, TLC2274CPWR application, or TLC2274CPWR equivalent, key selection criteria include rail-to-rail output capability under ±5-V or single 5-V supplies, low-noise performance for high-impedance transducer sources, micropower quiescent current (4.4–6 mA), input offset voltage ≤950 µV (A-grade), and compatibility with 10-kΩ load driving requirements.

Technical Context

The TLC2274CPWR uses LinCMOS process technology to achieve rail-to-rail output swing while maintaining high input impedance (>10¹² Ω) and ultra-low input bias current (1 pA typ). Its architecture supports both single-supply (VDD+ = 5 V, VDD−/GND = 0 V) and split-supply (±5 V) configurations without performance degradation.

It features a common-mode input voltage range extending to the negative rail, enabling direct sensing of ground-referenced signals. The device exhibits stable unity-gain operation with 50° phase margin and 10-dB gain margin into 10-kΩ//100-pF loads, supporting robust closed-loop designs in precision analog front-ends.

Key Specifications

Pinout & Package

TLC2274CPWR is housed in a 14-pin TSSOP package (4.40 mm × 5.00 mm body size) with exposed pad not electrically connected. Pin numbering follows standard JEDEC TSSOP convention, top-view orientation.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar quad rail-to-rail op-amp applications.

Compared with TLV2444IDR, TLC2274CPWR delivers 25% higher bandwidth and guaranteed ≤950-µV offset; versus OPA4340UA, it supports true rail-to-rail input common-mode range and operates down to single 2.2-V supply, at the cost of slightly higher noise and offset.

Availability

TLC2274CPWR is available at Aetrix Electronics and suitable for white goods control, handheld monitoring systems, transducer interfaces, and battery-powered applications requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for TLC2274CPWR 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, specializing in analog and embedded processing technologies with over 90 years of innovation in precision analog ICs.

The TLC227x family was designed specifically for rail-to-rail output performance in low-noise, low-input-bias-current applications-targeting sensor signal conditioning, portable instrumentation, and mixed-signal interfacing where dynamic range and DC accuracy are critical.

FAQ

What supply voltage ranges does the TLC2274CPWR support?

The TLC2274CPWR operates from ±2.2 V to ±8 V in split-supply mode or from 4.4 V to 16 V in single-supply configuration. At ±5 V, it delivers full rail-to-rail output swing and specified AC performance including 2.25-MHz gain-bandwidth and 3.6-V/µs slew rate. Minimum operating voltage is defined by functionality-not just survival-ensuring reliable operation across its entire rated range.

Does the TLC2274CPWR have rail-to-rail input capability?

No, the TLC2274CPWR features rail-to-rail *output* swing but its common-mode input voltage range extends only to the negative rail (VDD−) and up to VDD+ − 1.5 V. For example, at ±5 V supply, valid input range is –5 V to +3.5 V. This allows ground-referenced inputs but excludes full rail-to-rail input operation. Input stage is optimized for high impedance and low bias current-not wide common-mode range.

What is the maximum output current drive capability of the TLC2274CPWR?

The TLC2274CPWR is characterized for ±50 mA absolute maximum output current, but its specified linear operation is guaranteed up to ±5 mA with 1.5-V output saturation limit at that level. At ±1 mA, output voltage remains within 4.25 V to 4.65 V (for +5 V supply) or –4.25 V to –4.65 V (for ±5 V), enabling reliable driving of 10-kΩ loads without clipping. Higher currents induce increased distortion and thermal stress.

How does the TLC2274CPWR compare to the TLC2274A variant?

The TLC2274CPWR is the standard-grade version with maximum input offset voltage of 2500 µV at 25°C; the TLC2274APWR is the A-grade variant with tighter 950-µV maximum offset. Both share identical pinout, package, bandwidth, noise, and supply current. The "A" suffix denotes enhanced DC precision-not improved AC specs-and is selected when system-level offset error budget demands stricter initial calibration tolerance.

Can the TLC2274CPWR drive capacitive loads directly?

The TLC2274CPWR is stable with up to 100 pF capacitive load in unity-gain configuration, as verified by 50° phase margin and 10-dB gain margin. Driving larger capacitive loads (e.g., ADC input capacitance >100 pF or long PCB traces) requires isolation via series resistor (≥100 Ω) or external compensation. Uncompensated loads >150 pF risk peaking, overshoot, or oscillation due to reduced phase margin.