Texas Instruments TLC272IP

Overview

TLC272IP from Texas Instruments is a precision dual 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 the negative rail. It operates from 3 V to 16 V over 0°C to 70°C and delivers 4.5 MHz unity-gain bandwidth with 0.5 V/μs slew rate - ideal for sensor signal conditioning in industrial instrumentation.

For engineers reviewing the TLC272IP datasheet, TLC272IP pinout, TLC272IP application, or TLC272IP equivalent, key selection considerations include its low input bias current (<60 pA), high input impedance (>10¹² Ω), wide common-mode input range extending below ground, and compatibility with TTL/HCMOS supply rails - all critical for low-power, high-impedance analog front-ends.

Technical Context

The TLC272IP uses a polysilicon-gate CMOS process enabling ultra-low input bias current and stable offset voltage drift (0.3 µV/°C). Its input stage supports common-mode voltages down to –0.1 V (at VDD = 5 V) and output swing to within 50 mV of the negative rail, enabling true single-supply functionality without level-shifting circuitry.

It integrates ESD protection and latch-up immunity, and achieves 80 dB typical CMRR and 120 dB typical PSRR at DC. The device is not rail-to-rail input - the upper common-mode limit is VDD – 1 V at 25°C - and requires careful biasing in high-precision DC-coupled configurations.

Key Specifications

Pinout & Package

Package: PDIP-8 (Plastic Dual In-line Package), 9.81 mm × 9.43 mm, through-hole mounting.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLC272IP, TLV2462IP offers tighter offset and rail-to-rail operation at higher supply current, while OPA2340PA delivers superior noise and bandwidth but restricts supply voltage to ≤5.5 V - making TLC272IP the optimal balance of wide supply range, low power, and industrial-grade temperature capability.

Availability

TLC272IP is available at Aetrix Electronics and suitable for industrial sensor interfaces, portable instrumentation, medical analog front-ends, and automotive cabin monitoring systems requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for TLC272IP 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, embedded processing, and connectivity technologies, with decades of heritage in precision op-amp design and manufacturing.

The TLC27xx family was engineered for cost-effective precision amplification in single-supply systems - targeting industrial, medical, and automotive applications where low bias current, wide supply range, and temperature stability are essential.

FAQ

What is the maximum operating temperature range for the TLC272IP?

The TLC272IP is rated for 0°C to 70°C operation (C-suffix grade). It supports supply voltages from 3 V to 16 V within this range. For extended temperature applications, TI offers the TLC272IP's I-suffix variant (TLC272IP) rated from –40°C to +85°C - confirm suffix designation before thermal design validation. The TLC272IP itself must not be operated outside its specified 0°C to 70°C ambient range.

Does the TLC272IP support true rail-to-rail input operation?

No, the TLC272IP does not support rail-to-rail input. Its common-mode input voltage range extends below the negative rail (to –0.1 V at VDD = 5 V) but is limited at the upper end to VDD – 1 V at 25°C (and VDD – 1.5 V at other temperatures). This means the input cannot reliably accept signals near VDD without potential phase reversal or increased distortion - external level-shifting may be needed for full-rail input signals.

Can the TLC272IP drive capacitive loads directly?

The TLC272IP is not unity-gain stable into heavy capacitive loads. Driving >100 pF directly risks oscillation due to phase margin degradation. For loads exceeding 20 pF, TI recommends isolating the op-amp output with a small series resistor (e.g., 22 Ω to 100 Ω) and placing the capacitance beyond that resistor. Always verify stability under actual load conditions using bench testing or SPICE simulation with the TLC272IP model.

How does the input offset voltage drift affect long-term calibration in precision systems using the TLC272IP?

The TLC272IP exhibits a typical input offset voltage drift of 0.3 µV/°C over 25°C to 70°C. Over a 45°C temperature span, this contributes ≤13.5 µV of additional offset - negligible compared to its 10 mV max initial VIO. TI also specifies long-term drift as ~0.1 µV/month, meaning less than 1.2 µV/year aging effect. These values make the TLC272IP suitable for systems requiring recalibration intervals of 6–12 months in stable thermal environments.

Is the TLC272IP pin-compatible with other devices in the TLC27xx family?

Yes, the TLC272IP is pin-compatible with all TLC27xx dual op-amps in PDIP-8 packaging, including TLC272AIP, TLC272BIP, and TLC277IP. All share identical pinout, package dimensions, and absolute maximum ratings. However, electrical differences exist - notably input offset voltage (10 mV for TLC272IP vs 500 µV for TLC277IP) and temperature range - so functional substitution requires verification of grade-specific specifications in the target application.