TLC0831CDR

Analog To Digital Converters (ADC) Overview

The TLC0831CDR is an 8-bit successive-approximation analog-to-digital converter (ADC) manufactured by Texas Instruments. It features a single-channel input and operates with a supply voltage range of 4.5 V to 5.5 V. The device provides a conversion time of 32 μs at a clock frequency of 250 kHz, utilizing a serial interface compatible with TTL and MOS logic. Designed for ratiometric operation or use with an external 5-V reference, it accommodates analog input ranges from 0 V to 5 V. The component is housed in an 8-pin SOIC package and is characterized for commercial temperature operation from 0°C to 70°C.

Analog To Digital Converters (ADC) Feature Summary

• Serial control interface allows direct connection to standard shift registers or microprocessors without parallel bus overhead.
• Successive-approximation architecture enables high-speed conversion with low power consumption.
• TTL and MOS logic compatibility ensures seamless integration into digital control systems.

Analog To Digital Converters (ADC) Applications

• Industrial process control systems requiring analog signal digitization
• Battery-powered instrumentation utilizing ratiometric measurement techniques
• Microprocessor-based data acquisition systems

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix 'CDR' corresponds to the tape-and-reel packaging format and the C-temperature grade (0°C to 70°C). Confirm that the application environment remains within the specified operating temperature limits to ensure compliance with datasheet electrical characteristics. Cross-reference the manufacturer part number against current production status documentation.

Analog To Digital Converters (ADC) Selection Notes

Select this component when a single-channel 8-bit resolution is sufficient for the application requirements. Consider the TLC0832 series if multiplexed twin-channel inputs are necessary. Ensure the system clock frequency does not exceed the recommended maximum of 600 kHz to maintain timing specifications. Verify that the analog input signals remain within the 0 V to 5 V range relative to ground.

Analog To Digital Converters (ADC) Part Context

This device belongs to the TLC083x family of 8-bit ADCs, which also includes the dual-channel TLC0832 and higher-resolution variants like the TLC0834 and TLC0838. The TLC0831 specifically addresses applications needing only one analog input channel, simplifying the pinout and software addressing compared to the multiplexed versions.

Analog To Digital Converters (ADC) Replacement Considerations

The datasheet explicitly states the device is designed to be interchangeable with National Semiconductor ADC0831 and ADC0832 components. Verify pinout compatibility and electrical parameter alignment before substitution.

Analog To Digital Converters (ADC) FAQ

How is the input configuration determined for the TLC0831?

The TLC0831 has a fixed polarity assignment and does not require software addressing for channel selection. The signal can be applied differentially between IN+ and IN–, or single-endedly to IN+ with IN– grounded.

What is the function of the REF pin on the TLC0831?

The REF pin serves as the voltage reference input. For ratiometric conversion, it should be set equal to the maximum analog input signal value. Typically, it is connected to VCC internally or externally to define the full-scale input range.

Can the TLC0831 operate with a clock frequency higher than 250 kHz?

Yes, the recommended operating conditions specify a clock frequency range of 10 kHz to 600 kHz. However, the conversion time and timing parameters are typically characterized at 250 kHz.