TLC542IFN

Analog To Digital Converters (ADC) Overview

The TLC542IFN is an 8-bit successive approximation register (SAR) analog-to-digital converter manufactured by Texas Instruments. It integrates an 11-channel multiplexer and a sample-and-hold circuit within a single 20-pin PLCC package. The device operates on a single 5V supply, drawing minimal power while supporting data rates up to 25 kSPS. Communication with the host microcontroller is facilitated through a standard SPI-compatible serial interface. The component is designed for industrial applications, functioning reliably across an extended temperature range from -40°C to +85°C.

Analog To Digital Converters (ADC) Feature Summary

• Integrates an 11-channel analog multiplexer with a dedicated sample-and-hold stage to manage multiple input signals efficiently.
• Features a successive approximation register architecture that converts analog inputs to digital data using an external reference voltage.
• Supports flexible system integration via a standard three-wire serial interface compatible with common microcontroller protocols.

Analog To Digital Converters (ADC) Applications

• Industrial process control systems requiring multi-point temperature or pressure monitoring
• Battery-powered instrumentation utilizing low-power SAR conversion techniques
• Data acquisition modules interfacing with microcontrollers via serial communication

Analog To Digital Converters (ADC) Procurement Notes

Verify current availability status as this specific part number may be discontinued or subject to obsolescence notices. Confirm that the 20-PLCC package footprint matches the target PCB design. Ensure the external reference voltage requirements align with the system's precision needs before finalizing procurement plans.

Analog To Digital Converters (ADC) Selection Notes

Select this component when an 8-bit resolution is sufficient for the application's accuracy requirements. It is suitable for designs needing multiple single-ended inputs without external multiplexers. Consider the 25 kSPS speed limit and the requirement for an external voltage reference when evaluating performance against higher-speed or integrated-reference alternatives.

Analog To Digital Converters (ADC) Part Context

This device belongs to the TLC542 family of monolithic sampling A/D converters. It shares architectural similarities with other Texas Instruments SAR ADCs but is distinct in its specific 8-bit resolution and 11-channel configuration. The IFN suffix indicates the industrial temperature grade and the plastic leaded chip carrier package type.

Analog To Digital Converters (ADC) Replacement Considerations

Public documentation identifies the TLC542IFNR as a tape-and-reel variant of the same functional device. Other members of the TLC542 series offer different resolutions or channel counts but maintain similar interface characteristics.