ADC0834CCN

Analog To Digital Converters (ADC) Overview

The ADC0834CCN is an 8-bit successive approximation analog-to-digital converter manufactured by Texas Instruments. It features a software-configurable multiplexer supporting four single-ended or two differential input channels. The device operates on a single 5V DC supply with a voltage range of 4.5V to 6.3V and consumes 15mW of power. Conversion time is 32 microseconds, yielding a maximum sampling rate of approximately 31.25 kSPS. It utilizes a TI Microwire-compatible serial interface for data exchange and is housed in a standard 14-pin PDIP package.

Analog To Digital Converters (ADC) Feature Summary

• 8-Bit SAR Architecture: Provides 8-bit resolution with a total unadjusted error of ±1 LSB (tested limit) and a conversion time of 32 µs.
• Multiplexer Options: Supports four single-ended or two differential input channels via software-configurable address logic.
• Serial Interface: Complies with the TI Microwire standard, allowing direct interface with COPS processors or standard microprocessors.
• Single Supply Operation: Operates ratiometrically or with a 5V DC reference; includes a shunt regulator for high-voltage supply compatibility.

Analog To Digital Converters (ADC) Applications

• Industrial control systems requiring signal acquisition from multiple sensors.
• Automation test equipment utilizing remote operation capabilities.
• Sensor signal processing where ground-referenced and differential inputs are mixed.

Analog To Digital Converters (ADC) Procurement Notes

Verify component authenticity through authorized distributors as the part may be subject to obsolescence. Confirm that the specific CCN suffix corresponds to the commercial temperature range (-40°C to +85°C) and 14-pin PDIP package. Ensure the design accounts for the external reference requirements if absolute accuracy is needed rather than ratiometric operation.

Analog To Digital Converters (ADC) Selection Notes

Select the ADC0834CCN when four analog inputs are required within a single package. Choose this model over the ADC0832CN if more than two channels are needed, or over the ADC0838CN if fewer pins are preferred. Ensure the application supports the Microwire protocol or can emulate it via GPIO. Verify that the source impedance remains below 1 kΩ to prevent errors from input leakage currents.

Analog To Digital Converters (ADC) Part Context

The ADC0834CCN belongs to the ADC0831-N series, which also includes the ADC0831 (1 channel), ADC0832 (2 channels), and ADC0838 (8 channels). All members share identical core specifications regarding resolution, speed, and interface, differing primarily in the number of available analog input channels and corresponding package pin counts.

Analog To Digital Converters (ADC) Replacement Considerations

The TLC0834IN is a functional equivalent offering similar 8-bit performance and 4-channel multiplexing. Note that the TLC0834IN typically operates at a lower sampling rate (20 kSPS) compared to the ADC0834's 31.25 kSPS capability. Pinouts and interfaces are compatible, but verify electrical characteristics against specific application requirements.