Texas Instruments TLC274BCN

Overview

TLC274BCN from Texas Instruments is a precision quad operational amplifier in 14-pin PDIP package, optimized for single-supply operation with rail-to-rail output swing, 2 mV max input offset voltage (25°C), 10.8 nV/√Hz input voltage noise at 1 kHz, and 4.5 MHz unity-gain bandwidth - used in sensor signal conditioning, industrial analog front-ends, and low-power data acquisition systems.

For engineers reviewing the TLC274BCN datasheet, TLC274BCN pinout, TLC274BCN application, or TLC274BCN equivalent, key selection criteria include guaranteed 2 mV VIO over temperature, input common-mode range extending below ground, low 6.4 mA supply current (4 amplifiers), and compatibility with 3–16 V single supplies in C-suffix commercial-grade designs.

Technical Context

The TLC274BCN employs a polysilicon-gate CMOS process to achieve ultra-high input impedance (>10¹² Ω), sub-60 pA typical input bias current, and low offset voltage drift (0.3 µV/°C). Its input stage supports common-mode voltages down to –0.1 V (with respect to GND) and output swing to within 50 mV of GND under load.

This device delivers 0.5 V/µs slew rate and 10 kHz maximum output-swing bandwidth at unity gain into 10 kΩ//20 pF, enabling stable operation in transducer amplification and active filtering where low DC error and moderate speed are jointly required.

Key Specifications

Pinout & Package

Package: 14-pin PDIP (N), 19.3 mm × 9.4 mm body size, through-hole mounting.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLV2464CDR and OPA4277UA, the TLC274BCN offers the best balance of low-cost manufacturability, single-supply usability, and adequate precision for industrial and consumer-grade analog signal chains - especially where 2 mV VIO and 3–16 V operation are sufficient.

Availability

TLC274BCN is available at Aetrix Electronics and suitable for industrial sensor interfaces, programmable logic controller (PLC) analog input modules, and battery-powered data loggers requiring stable component supply across extended production lifecycles.

Supply support for TLC274BCN 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 delivering analog, embedded processing, and connectivity solutions with deep expertise in precision analog design and high-volume manufacturing.

The TLC27xx family was designed specifically for cost-sensitive, single-supply industrial and consumer applications requiring better DC precision than general-purpose op-amps but without the complexity or cost of chopper-stabilized or bipolar precision devices.

FAQ

What is the maximum input offset voltage specification for TLC274BCN at 25°C?

The TLC274BCN has a maximum input offset voltage of 2 mV at 25°C, as defined by its "B" grade designation in the TLC274x series. This value is guaranteed across the full commercial temperature range (0°C to 70°C), with typical performance at 2000 µV and worst-case drift of 0.3 µV/°C - making it suitable for applications where trimming is impractical but sub-5 mV DC error is required.

Does TLC274BCN support true single-supply operation with inputs referenced to ground?

Yes, the TLC274BCN 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 under 10 kΩ load. This allows direct connection of grounded sensors and compatibility with microcontroller ADC references without level-shifting circuitry - a core design goal of the TLC274x family.

What is the supply current consumption of TLC274BCN under typical operating conditions?

The TLC274BCN draws 2.24 mA (typical) to 6.4 mA (max) total supply current for all four amplifiers at 25°C and VDD = 5 V with no load. At 70°C, the maximum rises to 7.2 mA. This low IDD enables use in power-constrained systems such as portable instrumentation and remote sensor nodes where thermal dissipation and battery life are critical design factors.

Can TLC274BCN be used in place of older LM324-style op-amps?

Yes, the TLC274BCN is a drop-in replacement for LM324 in PDIP-14 sockets, offering superior performance: lower input offset voltage (2 mV vs. 7 mV), lower input bias current (60 pA vs. 45 nA), lower noise (10.8 nV/√Hz vs. 40 nV/√Hz), and rail-to-rail output swing. No PCB changes are required, though decoupling and layout best practices for CMOS inputs should be followed to maintain stability.

What package type does TLC274BCN use, and is it RoHS-compliant?

The TLC274BCN uses a 14-pin plastic dual in-line package (PDIP-N) with 19.3 mm × 9.4 mm footprint and through-hole leads. It is RoHS-compliant and lead-free per TI's SLOS092E datasheet revision January 2026, meeting JEDEC J-STD-020 moisture sensitivity level 1 (MSL-1) for unlimited floor life at ≤30°C/60% RH.