TLV2543CDWR

Analog To Digital Converters (ADC) Overview

The TLV2543CDWR is a 12-bit successive-approximation analog-to-digital converter (ADC) featuring an on-chip 14-channel multiplexer. It provides 11 single-ended analog input channels and three internal self-test voltages. The device operates with a serial interface compatible with SPI, utilizing chip select (CS), I/O clock, data input, and data output pins. It supports programmable output data lengths of 8, 12, or 16 bits and allows selection between MSB-first or LSB-first transmission formats. The component functions within a supply voltage range of 3 V to 3.6 V for both analog and digital domains. It achieves a maximum sampling rate of 66 kS/s and maintains linearity errors of ±1 LSB. The part is housed in a 20-pin SOIC package.

Analog To Digital Converters (ADC) Feature Summary

• Integrates a 14-channel analog multiplexer allowing selection among 11 external inputs and 3 internal test voltages.
• Features inherent sample-and-hold functionality controlled automatically by the I/O clock sequence.
• Supports unipolar or bipolar output operation with programmable data length and bit-order configuration.
• Includes built-in self-test modes for verifying reference voltage integrity and system accuracy.

Analog To Digital Converters (ADC) Applications

• Industrial process control systems requiring multi-channel signal acquisition.
• Data acquisition modules for monitoring sensor arrays.
• Battery-powered instrumentation benefiting from low-power consumption and programmable power-down modes.

Analog To Digital Converters (ADC) Procurement Notes

Verify that the ordering suffix 'W' corresponds to the tape-and-reel packaging format as specified in the manufacturer's documentation. Confirm the temperature grade matches the design requirements, as the 'C' variant is rated for commercial temperatures. Ensure the host processor interface supports the required serial clock speeds and data word lengths to maintain synchronization during conversion cycles.

Analog To Digital Converters (ADC) Selection Notes

Select this component when a high channel count is needed in a compact package without external multiplexers. Consider the TLV2543I variant if the application requires operation below 0°C. Evaluate the driving source impedance capabilities, as the input structure requires specific slew rates to charge the internal capacitance effectively at higher clock frequencies.

Analog To Digital Converters (ADC) Part Context

This device belongs to the TLV2543 family of 12-bit ADCs manufactured by Texas Instruments. It shares architectural similarities with the TLC2543 but is optimized for lower voltage operation. The family utilizes switched-capacitor technology to achieve accurate conversions over the operating temperature range while maintaining compatibility with standard microprocessor serial ports.

Analog To Digital Converters (ADC) Replacement Considerations

The TLC2543CDWR serves as a pin-compatible alternative within the same product family. Verify that the replacement part meets the specific voltage and temperature requirements of the original design, as variations exist between the TLV and TLC series specifications.