Texas Instruments TLC2272CPWR

Overview

TLC2272CPWR from Texas Instruments is a dual rail-to-rail output operational amplifier in TSSOP-8 package, featuring 2.2-MHz gain-bandwidth product, 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. It enables high-precision signal conditioning in battery-powered transducer interfaces and single-supply ADC driver circuits.

For engineers reviewing the TLC2272CPWR datasheet, TLC2272CPWR pinout, TLC2272CPWR application, or TLC2272CPWR equivalent, key selection criteria include rail-to-rail output swing (±4.6 V at ±5 V supply), low 2.4-mA quiescent current per amplifier, input common-mode range extending to negative rail, and guaranteed 950-µV max input offset voltage for the 'A' variant - critical for DC-coupled sensor front-ends.

Technical Context

The TLC2272CPWR uses LinCMOS process technology to achieve rail-to-rail output swing while maintaining low input bias current and low noise. Its input stage operates with common-mode voltage down to VDD−, enabling true single-supply operation without level-shifting circuitry.

It delivers stable unity-gain performance with 52° phase margin and 10-dB gain margin under 10-kΩ load and 100-pF capacitive load conditions, supporting direct driving of SAR ADC inputs and precision active filters without external compensation.

Key Specifications

Pinout & Package

TSSOP-8 package, 4.40 mm × 3.00 mm body size, 0.65-mm lead pitch, exposed pad not present.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLV2432IDR and OPA2333AIDR, the TLC2272CPWR offers balanced performance: lower noise than TLV2432IDR, significantly lower cost and higher speed than OPA2333AIDR, and proven reliability in white goods and industrial monitoring over 20+ years.

Availability

TLC2272CPWR is available at Aetrix Electronics and suitable for transducer interface, battery-powered monitoring, and white goods control applications requiring stable component supply across automotive, industrial, and consumer production programs.

Supply support for TLC2272CPWR 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 and embedded processing solutions for industrial, automotive, and personal electronics markets.

The TLC227x family was designed as a performance upgrade to the TLC27x series, targeting precision rail-to-rail signal conditioning in cost-sensitive, low-power applications where micropower consumption and high input impedance are essential.

FAQ

What is the maximum supply voltage range supported by the TLC2272CPWR?

The TLC2272CPWR supports a supply voltage range of ±2.2 V to ±8 V for split-supply operation, or 4.4 V to 16 V for single-supply use. Absolute maximum ratings specify ±8 V on VDD+ and VDD− terminals. Operation beyond these limits risks permanent damage. The device is fully characterized across this range, with electrical parameters guaranteed from ±2.2 V to ±8 V at all temperature grades.

Does the TLC2272CPWR have rail-to-rail input capability?

No, the TLC2272CPWR does not feature rail-to-rail input. Its common-mode input voltage range extends to the negative rail (VDD−) but stops 1.5 V below the positive rail (VDD+ − 1.5 V). At ±5 V supply, this yields a usable input range of –5 V to +3.5 V. This design enables robust operation with ground-referenced signals while maintaining low input bias current and noise - a deliberate trade-off versus full rail-to-rail input architectures.

What is the guaranteed input offset voltage specification for the TLC2272CPWR?

The TLC2272CPWR is the standard grade (non-'A') variant, with a maximum input offset voltage of 2500 µV at TA = 25°C and 3000 µV over full temperature range (0°C to 70°C). For designs requiring tighter DC accuracy, the pin-compatible TLC2272ACPWR variant guarantees ≤950 µV max offset at 25°C and ≤1500 µV over temperature - both share identical package, pinout, and AC specifications.

Can the TLC2272CPWR drive capacitive loads directly?

Yes, the TLC2272CPWR is stable driving up to 100 pF capacitive load with 52° phase margin and 10-dB gain margin under unity-gain configuration and 10-kΩ resistive load. For loads exceeding 100 pF, external isolation resistor (e.g., 10–50 Ω in series with output) is recommended to maintain stability. This capability supports direct connection to ADC input capacitors and long PCB traces without oscillation risk.

How does the TLC2272CPWR compare to the older TLC272 in terms of noise performance?

The TLC2272CPWR delivers 9 nV/√Hz input voltage noise at 1 kHz - approximately half the 18 nV/√Hz noise of the TLC272. This 6-dB improvement directly enhances signal-to-noise ratio in low-level sensor amplification. Combined with lower input offset voltage and rail-to-rail output, the TLC2272CPWR serves as a drop-in performance upgrade in existing TLC272 designs without layout changes.