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TLC271CDRG4

Updated: 2026-07-15

Overview

The TLC271CDRG4 is a CMOS operational amplifier manufactured by Texas Instruments, part of the TLC27x family. It is designed for low-power applications where precision and efficiency are critical. The device operates on a single or dual supply voltage, making it versatile for various analog circuit designs. Its rail-to-rail output swing and high input impedance make it suitable for interfacing with sensors and other low-level signal sources. The TLC271CDRG4 is commonly used in portable electronics, industrial control systems, and automotive applications due to its reliability and performance.

Structure and Working Principle

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The TLC271CDRG4 integrates a differential input stage, gain stage, and output buffer on a single CMOS chip. The differential input allows it to amplify small voltage differences between its two inputs, while the gain stage ensures high open-loop gain for precision applications. The device operates by drawing minimal quiescent current, typically in the microampere range, which is ideal for battery-powered systems. Its rail-to-rail output stage ensures maximum dynamic range, even with low supply voltages. The internal compensation network stabilizes the amplifier, reducing the need for external components.

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Key Features

The TLC271CDRG4 is distinguished by its ultra-low power consumption, with a typical quiescent current of 500 µA. This makes it ideal for energy-sensitive applications. Its high input impedance minimizes loading effects on signal sources, preserving signal integrity. Another notable feature is its wide supply voltage range, from 3V to 16V, accommodating both single and dual supply configurations. The device also offers a high common-mode rejection ratio (CMRR) and low input offset voltage, ensuring accurate signal amplification in noisy environments.

Application Areas

The TLC271CDRG4 is widely used in sensor interfaces, such as temperature, pressure, and light sensors, where low power and high precision are essential. It is also employed in portable medical devices, where battery life and signal accuracy are critical. In industrial settings, the op-amp is used in control systems, data acquisition modules, and instrumentation amplifiers. Automotive applications include infotainment systems, engine control units, and battery management systems, leveraging its robustness and low power consumption.

Maintenance and Precautions

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To ensure longevity and performance, avoid exposing the TLC271CDRG4 to voltages beyond its specified range. Proper ESD precautions should be taken during handling and assembly to prevent damage to the sensitive CMOS circuitry. For optimal performance, ensure the device is operated within its temperature range (-40°C to 125°C). Avoid prolonged exposure to high humidity or corrosive environments, as these can degrade the device's reliability over time.

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B2B Procurement Guide

When procuring the TLC271CDRG4, verify the supplier's authenticity to avoid counterfeit components. Texas Instruments authorized distributors are recommended for guaranteed quality. Bulk purchases typically offer cost savings, with prices ranging from $0.50 to $1.50 per unit depending on volume. Ensure the packaging type (e.g., SOIC-8) matches your assembly requirements. Lead time and stock availability should also be confirmed, especially for time-sensitive projects. Consider testing a small batch before large-scale procurement to validate performance in your specific application.

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