Texas Instruments TLC27L2BCP

Overview

TLC27L2BCP from Texas Instruments is a precision dual CMOS operational amplifier optimized for low-power, single-supply sensor signal conditioning. It delivers 2 mV max input offset voltage (25°C), ultra-low 34 µA typical supply current (VDD = 5 V), and rail-to-rail output swing - enabling accurate amplification in battery-powered field transmitters and smoke detectors.

For engineers reviewing the TLC27L2BCP datasheet, TLC27L2BCP pinout, TLC27L2BCP application, or TLC27L2BCP equivalent, key selection criteria include its 2 mV initial offset grade, −0.2 V to 3.5 V common-mode input range (VDD = 5 V), LinCMOS™ input impedance (>10¹² Ω), and compatibility with 3–16 V supplies across 0°C to 70°C operation.

Technical Context

The TLC27L2BCP uses Texas Instruments' silicon-gate LinCMOS™ process, delivering superior offset voltage stability (<0.1 µV/month drift) and latch-up immunity versus metal-gate alternatives. Its dual-channel architecture supports independent signal paths with matched gain and phase characteristics.

It operates from single supplies as low as 3 V with inputs extending 0.2 V below ground and outputs swinging to within 50 mV of the negative rail - making it suitable for direct interfacing with resistive sensors and low-voltage ADCs without level-shifting circuitry.

Key Specifications

Pinout & Package

Package: 8-pin PDIP (Plastic Dual In-line Package), 0.3 inch width, through-hole mounting.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLC27L2CP and TLC27L2ACN, the TLC27L2BCP provides the tightest initial offset tolerance (2 mV) in the TLC27L2x family while retaining identical supply range, temperature rating, and package - making it optimal for high-accuracy, low-power analog front-ends where calibration overhead must be minimized.

Availability

TLC27L2BCP is available at Aetrix Electronics and suitable for pressure transmitter design, smoke detector production, and temperature transmitter development requiring stable component supply and long-lifecycle support.

Supply support for TLC27L2BCP 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-amps and industrial-grade signal chain solutions.

The TLC27L2BCP belongs to TI's LinCMOS™ precision op-amp product line, engineered specifically for low-power, high-impedance sensor interface applications in industrial automation, environmental monitoring, and safety-critical detection systems.

FAQ

What is the maximum operating temperature range for the TLC27L2BCP?

The TLC27L2BCP is characterized for operation from 0°C to +70°C (C-suffix grade). Its absolute maximum junction temperature is 150°C, but continuous operation above +70°C requires derating per the dissipation ratings table and may impact offset stability and long-term reliability. For extended temperature applications, consider the I-suffix (−40°C to +85°C) or M-suffix variants instead of the TLC27L2BCP.

Does the TLC27L2BCP support true rail-to-rail input operation?

The TLC27L2BCP does not support rail-to-rail input - its common-mode input voltage range extends to −0.2 V (below GND) and up to 3.5 V when VDD = 5 V. While the inputs go below ground, they do not reach the positive rail. However, the output is rail-to-rail capable, swinging within 50 mV of both supply rails under light load conditions.

Can the TLC27L2BCP drive capacitive loads directly?

The TLC27L2BCP exhibits conditional stability with capacitive loads: phase margin drops to 30° at 70°C with 20 pF load (VDD = 5 V), indicating potential ringing or oscillation above ~100 pF. For driving >100 pF (e.g., long cables or ADC input capacitance), use a series isolation resistor (100–500 Ω) between TLC27L2BCP output and the load to restore stability without degrading bandwidth significantly.

How does the input offset voltage of the TLC27L2BCP compare to the TLC27L2ACN?

The TLC27L2BCP has a maximum input offset voltage of 2 mV at 25°C, whereas the TLC27L2ACN is specified at 5 mV max under identical conditions. Both share the same C-suffix temperature range (0°C to 70°C) and PDIP packaging, but the TLC27L2BCP offers twice the initial DC accuracy - critical for uncalibrated sensor front-ends where offset error directly impacts measurement fidelity.

Is the TLC27L2BCP compatible with single-supply 3.3 V systems?

Yes - the TLC27L2BCP supports VDD as low as 3 V across its rated temperature range. At 3.3 V, its common-mode input range is −0.2 V to ~2.5 V and output swings from near GND to ~3.2 V, enabling direct interfacing with 3.3 V microcontrollers and SAR ADCs. Supply current remains ~25 µA, preserving ultra-low power operation in modern low-voltage designs.