Texas Instruments TLC272BIDRG4

Overview

TLC272BIDRG4 from Texas Instruments is a precision dual CMOS operational amplifier optimized for single-supply operation, featuring 2 mV max input offset voltage (25°C), 10.8 nV/√Hz input voltage noise at 1 kHz, and rail-to-rail output swing down to the negative rail. It operates from 4 V to 16 V over –40°C to 85°C and delivers 0.5 V/μs slew rate 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 TLC272BIDRG4 datasheet, TLC272BIDRG4 pinout, TLC272BIDRG4 application, or TLC272BIDRG4 equivalent, key selection criteria include its guaranteed 2 mV V_IO (max) at 25°C, ultra-low input bias current (<60 pA), wide common-mode input range extending below ground, and SOIC-8 packaging compatible with automated PCB assembly.

Technical Context

The TLC272BIDRG4 uses a polysilicon-gate CMOS process to achieve high input impedance (>10¹² Ω), low input bias current (10–60 pA), and stable offset voltage drift (0.3 μV/°C). Its input stage supports common-mode voltages down to –0.1 V (at V_DD = 5 V), enabling true single-supply operation without level-shifting circuitry.

It delivers 4.5 MHz unity-gain bandwidth and 0.5 V/μs slew rate while drawing only 1.12–4 mA total supply current across temperature. The device includes ESD protection and latch-up immunity, and its output drives ±30 mA into 10 kΩ loads with low-level output voltage ≤50 mV (I_OL = 0).

Key Specifications

Pinout & Package

Package: SOIC-8 (D package), 4.9 mm × 6.0 mm body, 1.27 mm pitch, surface-mount, tape-and-reel compatible.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLV2462IDR and OPA2333AIDR, the TLC272BIDRG4 offers the best balance of low-cost manufacturability, proven industrial reliability, and adequate precision for non-zero-drift applications - making it ideal for cost-constrained industrial analog front-ends where 2 mV offset and 4.5 MHz bandwidth meet system requirements.

Availability

TLC272BIDRG4 is available at Aetrix Electronics and suitable for industrial sensor interfaces, portable medical devices, and smart energy metering systems requiring stable component supply across extended temperature ranges and multi-year production cycles.

Supply support for TLC272BIDRG4 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 experience in precision op-amp design and manufacturing.

The TLC27xx family was engineered for cost-effective, high-reliability precision amplification in industrial and instrumentation applications - emphasizing single-supply usability, low power, and robustness across temperature extremes.

FAQ

What is the maximum input offset voltage specification for TLC272BIDRG4 at 25°C?

The TLC272BIDRG4 has a maximum input offset voltage of 2000 µV (2 mV) at 25°C, as specified in the Electrical Characteristics table for TLC272BI grade under V_DD = 5 V conditions. This value is guaranteed across the full operating temperature range (–40°C to +85°C), with worst-case drift of 0.3 µV/°C between 25°C and 85°C. The TLC272BIDRG4 maintains this specification without trimming or calibration.

Does TLC272BIDRG4 support true single-supply operation with inputs referenced to ground?

Yes, the TLC272BIDRG4 supports true single-supply operation with inputs referenced to ground. Its common-mode input voltage range extends to –0.1 V (at V_DD = 5 V) and –0.3 V (at V_DD = 10 V), allowing direct connection of grounded sensor outputs. This eliminates the need for external biasing networks in applications such as thermocouple amplifiers and bridge sensor interfaces.

What is the recommended bypass capacitor for TLC272BIDRG4 power pins?

A 0.1 µF ceramic capacitor placed as close as possible to the V_DD (Pin 8) and GND (Pin 4) pins is recommended for TLC272BIDRG4. This provides effective high-frequency decoupling and stabilizes the internal bias network. For systems with noisy digital supplies, adding a 10 µF tantalum or aluminum electrolytic capacitor in parallel improves low-frequency ripple rejection without compromising stability.

Can unused amplifier sections in TLC272BIDRG4 be left floating?

No, unused amplifier sections in TLC272BIDRG4 must not be left floating. TI recommends configuring unused channels as grounded unity-gain followers (non-inverting configuration with output tied to inverting input and non-inverting input connected to GND) to prevent oscillation, excessive current draw, or unpredictable output states that could couple noise into adjacent circuits.

Is TLC272BIDRG4 pin-compatible with other TLC272 variants like TLC272CDR or TLC272AIDR?

Yes, the TLC272BIDRG4 is pin-compatible with all TLC272x variants in SOIC-8 (D) package, including TLC272CDR and TLC272AIDR. All share identical pinout, footprint, and thermal characteristics. Differences lie solely in guaranteed input offset voltage grades (10 mV for C, 5 mV for A, 2 mV for B) and temperature range (C: 0°C–70°C, I: –40°C–85°C), with no functional or layout impact.