ADC0809CCN/NOPB

Analog To Digital Converters (ADC) Overview

The ADC0809CCN/NOPB is an 8-bit successive approximation register (SAR) analog-to-digital converter manufactured by Texas Instruments. It integrates an 8-channel analog multiplexer and a sample-and-hold circuit within a single monolithic device. The component features a microprocessor-compatible parallel interface and operates on a single 5V power supply, supporting an analog input range of 0V to 5V. Key electrical specifications include a sampling rate of 10 ksps, a typical conversion time of 6.6µs, and a total unadjusted error of ±1 LSB. It is housed in a 28-pin MDIP package with through-hole mounting, designed for industrial applications operating between -40°C and +85°C.

Analog To Digital Converters (ADC) Feature Summary

• Integrates 8-channel analog multiplexer with built-in address logic and sample-and-hold functionality
• Microprocessor-compatible parallel digital output interface requiring no external latches
• Operates ratiometrically or with an independent voltage reference up to 5V
• Includes analog input protection rated at a minimum of 25mA per input channel

Analog To Digital Converters (ADC) Applications

• Industrial process control systems requiring multi-channel signal acquisition
• Data acquisition modules for monitoring multiple sensor inputs
• Low-speed communication interfaces involving analog signal digitization
• General-purpose embedded systems utilizing standard 8-bit microcontrollers

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix 'CCN' confirms the 28-pin DIP package variant when sourcing replacements. Confirm that the 'NOPB' designation indicates lead-free and RoHS compliance status relative to current manufacturing standards. Ensure the selected substitute maintains pin compatibility if direct replacement is required for existing PCB layouts.

Analog To Digital Converters (ADC) Selection Notes

Select this component for designs requiring low-cost, multi-channel conversion without external multiplexers. The 10 ksps sampling rate limits suitability for high-frequency signals; verify bandwidth requirements against the 6.6µs conversion time. Ensure the system architecture supports parallel data bus connections and provides necessary control signals for START, OE, and EOC pins.

Analog To Digital Converters (ADC) Part Context

This part belongs to the legacy ADC0808/ADC0809 family, widely used in older microcontroller-based designs. It serves as a cost-effective solution for basic analog sensing tasks. While newer SAR ADCs offer higher speeds and resolutions, this device remains relevant for simple, low-bandwidth applications where pin count and interface simplicity are prioritized over performance metrics.

Analog To Digital Converters (ADC) Replacement Considerations

Publicly confirmed substitutes include the ADS8528SRGCR from Texas Instruments. Verify functional equivalence regarding resolution and interface type before implementation.