Texas Instruments TLC274IPWR

Overview

TLC274IPWR from Texas Instruments is a precision quad CMOS operational amplifier optimized for single-supply operation, featuring 10 mV max input offset voltage (C-suffix), 10.8 nV/√Hz input voltage noise at 1 kHz, and rail-to-rail output swing down to GND - enabling accurate signal conditioning in low-voltage sensor interfaces and data acquisition systems.

For engineers reviewing the TLC274IPWR datasheet, TLC274IPWR pinout, TLC274IPWR application, or TLC274IPWR equivalent, key selection criteria include its 3–16 V supply range, >10¹² Ω input impedance, 4.5 MHz unity-gain bandwidth, and guaranteed operation from 0°C to 70°C in the TSSOP-14 package - critical for industrial analog front-ends requiring stability across temperature and supply variation.

Technical Context

The TLC274IPWR uses a polysilicon-gate CMOS process to achieve ultra-low input bias current (<60 pA typical) and minimal input offset voltage drift (0.3 µV/°C), making it suitable for high-impedance transducer amplification where leakage-induced errors must be avoided. Its input common-mode range extends below GND (to –0.1 V at VDD = 5 V), and output swings within 50 mV of GND under load - supporting true single-supply DC-coupled designs.

Unlike bipolar op-amps, the TLC274IPWR avoids crossover distortion and delivers consistent slew rate (0.5 V/µs) and open-loop gain (>5 V/mV) across its full operating temperature range. It is not internally compensated for unity-gain stability - external compensation may be required in high-gain configurations per Figure 4-10 and 4-11.

Key Specifications

Pinout & Package

Packaged in a 14-pin TSSOP (PW), the TLC274IPWR measures 5 mm × 6.4 mm with 0.65 mm lead pitch - compatible with automated SMT assembly and space-constrained PCB layouts.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLV2464IDR and OPA4188AIPW, the TLC274IPWR offers the broadest supply range (3–16 V), lowest cost per channel, and proven reliability in commercial-temperature industrial systems - making it optimal for cost-sensitive, single-supply, medium-bandwidth analog signal paths where 10 mV offset is acceptable.

Availability

TLC274IPWR is available at Aetrix Electronics and suitable for industrial sensor interfaces, medical front-ends, and test equipment requiring stable component supply, long-lifecycle availability, and RoHS-compliant TSSOP packaging.

Supply support for TLC274IPWR 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 heritage in precision op-amp design and manufacturing.

The TLC27xx family was engineered for cost-effective, single-supply precision amplification in industrial and instrumentation applications - delivering BiFET-like performance using CMOS process advantages.

FAQ

What is the maximum supply voltage rating for the TLC274IPWR?

The absolute maximum supply voltage for the TLC274IPWR is 18 V, but the recommended operating range is 3 V to 16 V. Operation at 16 V maximizes output swing and dynamic range, while 3 V enables compatibility with low-voltage logic systems. Exceeding 18 V risks permanent damage per Section 4.1 of the datasheet.

Does the TLC274IPWR support true single-supply operation with input signals at ground potential?

Yes, the TLC274IPWR supports true single-supply operation: its common-mode input voltage range extends to –0.1 V (below GND) at VDD = 5 V, and its output swings to within 50 mV of GND. This allows direct amplification of 0–VDD signals without level-shifting - confirmed in Sections 4.2 and 4.3 of the TLC274IPWR datasheet.

What is the input offset voltage specification for the TLC274IPWR, and how does it vary with temperature?

The TLC274IPWR (C-suffix) has a maximum input offset voltage of 10 mV at 25°C, with full-range (0°C to 70°C) spec of 12 mV. Its temperature coefficient is 0.3 µV/°C - meaning offset drift contributes less than 21 µV over a 70°C span, far below the initial 10 mV tolerance. This is documented in Table 4-3 and Figure 4-3.

Can unused amplifiers in the TLC274IPWR be left unconnected?

No - unused amplifiers in the TLC274IPWR must be configured as unity-gain buffers with inputs tied to a valid common-mode voltage (e.g., VDD/2 or GND) to prevent oscillation or excessive current draw. Section 6.1.2 explicitly states that floating inputs may cause instability; grounding the non-inverting input and connecting output to inverting input satisfies this requirement.

Is the TLC274IPWR pin-compatible with other packages in the TLC274x family?

The TLC274IPWR (TSSOP-14) shares identical pinout and function mapping with the SOIC-14 (D), PDIP-14 (N), and SSOP-14 (DB) variants per Figure 3-1 and Table 3-1 - all follow the standard quad op-amp pin configuration. However, thermal and layout constraints differ due to package size and thermal pad absence, so PCB footprint is not interchangeable.