TLC1543CFN

Analog To Digital Converters (ADC) Overview

The Texas Instruments TLC1543CFN is a 10-bit analog-to-digital converter featuring an on-chip system clock and 11 analog input channels. It utilizes CMOS technology with a switched-capacitor successive-approximation architecture, providing inherent sample-and-hold functionality. The device offers a total unadjusted error of ±1 LSB maximum and includes three built-in self-test modes for verification. It communicates via a serial interface compatible with host processors, utilizing chip select (CS), I/O clock, address, and data output terminals. The CFN variant operates within a commercial temperature range of 0°C to 70°C and supports a supply voltage of 4.5V to 5.5V.

Analog To Digital Converters (ADC) Feature Summary

• Integrates an on-chip system clock and automatic sample-and-hold function to simplify external circuitry requirements.
• Features a 14-channel multiplexer allowing selection among 11 analog inputs or three internal self-test voltages.
• Provides differential high-impedance reference inputs to facilitate ratiometric conversion and isolate analog circuitry from noise.
• Includes an end-of-conversion (EOC) output signal to indicate when the conversion result is ready for transfer.

Analog To Digital Converters (ADC) Applications

• Data acquisition systems requiring multi-channel analog signal monitoring
• Industrial control applications involving sensor signal conditioning
• Embedded systems utilizing serial communication protocols for ADC integration

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix 'CFN' corresponds to the plastic DIP package and the 0°C to 70°C operating temperature range as defined in the official datasheet. Confirm that the source document identifies this part number as production data current at the publication date. Ensure compatibility with the required supply voltage and temperature specifications for the intended application environment before procurement.

Analog To Digital Converters (ADC) Selection Notes

Select the TLC1543CFN when a 10-bit resolution and 11-channel multiplexing capability are required within a commercial temperature range. This component is suitable for designs needing a serial interface to minimize microcontroller pin usage. Consider the switched-capacitor input impedance characteristics and the need for a stable reference voltage between REF+ and REF- pins to ensure accurate ratiometric conversions.

Analog To Digital Converters (ADC) Part Context

The TLC1543CFN belongs to the TLC1542/1543 family of 10-bit switched-capacitor successive-approximation ADCs manufactured by Texas Instruments. These devices are designed for high-speed data transfers and versatile control capabilities. The CFN designation specifically indicates the commercial grade version housed in a plastic dual in-line package, distinct from the industrial (I) or military (M) variants available in the same series.

Analog To Digital Converters (ADC) Replacement Considerations

The TLC1542 is terminal compatible with the TLC1543 but features only 8 analog input channels instead of 11. Verify that the reduced channel count meets the application requirements if substituting the TLC1542 for the TLC1543CFN. Other family members like the TLC1543IDW offer different packages or temperature ranges but maintain similar functional interfaces.