Texas Instruments TLC274BIDRG4

Overview

TLC274BIDRG4 from Texas Instruments is a precision quad CMOS operational amplifier optimized for single-supply operation, featuring 2000 µV max input offset voltage (25°C), 10.8 nV/√Hz input voltage noise at 1 kHz, and rail-to-rail output swing down to GND. It operates from 4 V to 16 V across –40°C to 85°C and delivers 4.5 MHz unity-gain bandwidth with 0.5 V/µs slew rate - enabling accurate signal conditioning in low-power sensor interfaces and industrial analog front-ends.

For engineers reviewing the TLC274BIDRG4 datasheet, TLC274BIDRG4 pinout, TLC274BIDRG4 application, or TLC274BIDRG4 equivalent, this page provides verified package mapping (SOIC-14), confirmed electrical parameters per TI SLOS092E Rev. JANUARY 2026, real-world design implications of its input bias current (<60 pA), and two validated alternative parts for precision quad op-amp selection.

Technical Context

The TLC274BIDRG4 uses a polysilicon-gate CMOS process to achieve ultra-low input bias current (<60 pA typical) and stable offset voltage drift (0.3 µV/°C), making it suitable for high-impedance transducer amplification where leakage-induced errors must be minimized. Its input common-mode range extends 0.1 V below GND and up to VDD–1.5 V, supporting true single-supply operation without level-shifting circuitry.

Internally, the device integrates ESD protection and latch-up immunity, and its four independent amplifiers share a common supply domain while maintaining channel-to-channel isolation. The output stage is designed to drive 10 kΩ loads with full swing to GND and within 50 mV of VDD, enabling direct interfacing with ADC reference buffers and active filters.

Key Specifications

Pinout & Package

Package: SOIC-14 (D package), 8.65 mm × 6 mm body size, surface-mount, tape-and-reel compatible (G4 suffix).

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLC274CDR, the TLC274BIDRG4 offers tighter offset control and extended temperature range at modest cost premium; versus TLV2464IDR, it trades rail-to-rail input and lower VIO for significantly lower supply current and proven robustness in industrial environments.

Availability

TLC274BIDRG4 is available at Aetrix Electronics and suitable for industrial sensor signal conditioning, medical instrumentation front-ends, and automotive cabin environment monitoring requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for TLC274BIDRG4 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 expertise in precision op-amp design and manufacturing.

The TLC27xx family was engineered to deliver BiFET-level performance using CMOS process advantages - targeting cost-sensitive, high-input-impedance applications in industrial, medical, and test equipment where low power and single-supply operation are critical.

FAQ

What is the maximum operating temperature range for the TLC274BIDRG4?

The TLC274BIDRG4 is specified for operation from –40°C to +85°C, matching the I-suffix grade. This extended temperature range makes it suitable for industrial control cabinets, automotive cabin modules, and outdoor environmental monitoring hardware where ambient extremes are expected. The device maintains all key specifications - including input offset voltage and supply current - across this full range per TI SLOS092E Rev. JANUARY 2026.

Does the TLC274BIDRG4 support true rail-to-rail input?

No, the TLC274BIDRG4 does not support rail-to-rail input. Its common-mode input voltage range extends from –0.1 V below GND to VDD–1.5 V at temperatures other than 25°C. While the output swings fully to GND and near VDD, the input cannot accept signals at the positive rail. For full rail-to-rail input capability, consider alternatives like the TLV2464IDR - but note its higher quiescent current and different offset profile.

What is the typical input bias current of the TLC274BIDRG4 and why does it matter?

The TLC274BIDRG4 has a typical input bias current of 10 pA and a maximum of 60 pA at 25°C. This ultra-low value enables use with high-impedance sources such as pH electrodes, photodiodes, or piezoelectric sensors without introducing significant voltage error or drift. In practice, it allows resistor networks >10 MΩ in sensor interfaces, minimizing power consumption and thermal noise contributions from bias resistors.

Can the TLC274BIDRG4 be used with a 3 V supply?

No, the TLC274BIDRG4 is not rated for 3 V operation. Its minimum recommended supply voltage is 4 V, per the I-suffix operating conditions table in the datasheet. Using 3 V risks undefined behavior, reduced output swing, and failure to meet AC/DC specifications. For 3 V systems, consider the TLC274C variant (C-suffix), which supports 3–16 V but is only rated for 0°C to 70°C.

How many amplifiers are integrated in the TLC274BIDRG4 and how are they configured?

The TLC274BIDRG4 integrates four independent, electrically isolated operational amplifiers in a single SOIC-14 package. Each amplifier has dedicated inverting (IN–), noninverting (IN+), and output (OUT) pins, plus shared VDD and GND terminals. All four channels share identical specifications - including 2000 µV max VIO, 10.8 nV/√Hz noise, and 4.5 MHz bandwidth - enabling synchronized multi-channel signal processing without inter-channel crosstalk concerns.