ADC0809CCN

Analog To Digital Converters (ADC) Overview

The ADC0809CCN is a monolithic CMOS 8-bit analog-to-digital converter (ADC) featuring an 8-channel multiplexer and microprocessor-compatible control logic. Utilizing successive approximation architecture, it delivers a typical conversion time of 100 μs at a 640 kHz clock frequency. The device operates on a single 5 VDC supply with low power consumption of 15 mW. It provides latched TTL tri-state outputs for direct interfacing with standard digital buses. The ADC0809CCN supports ratiometric conversion or external voltage reference operation, eliminating the need for external zero or full-scale adjustments.

Analog To Digital Converters (ADC) Feature Summary

• Integrated 8-channel single-ended analog multiplexer with address decoding logic
• Successive approximation A/D conversion technique with chopper-stabilized comparator
• Latched TTL tri-state data outputs for direct microprocessor bus interfacing
• Operates ratiometrically with input range equal to supply voltage (0V to VCC)
• No external zero or full-scale adjustment required

Analog To Digital Converters (ADC) Applications

• Process and machine control systems requiring multi-channel data acquisition
• Consumer electronics utilizing potentiometers or strain gauges as position sensors
• Automotive applications involving proportional relationship measurements
• Microprocessor-based data logging systems with 8-bit resolution requirements

Analog To Digital Converters (ADC) Procurement Notes

Verify component status prior to procurement as the ADC0809CCN is listed with LIFEBUY status in official documentation. Confirm package integrity upon receipt, as the device contains limited built-in ESD protection. Ensure handling procedures prevent electrostatic discharge damage to MOS gates during storage and installation.

Analog To Digital Converters (ADC) Selection Notes

Select this component when an 8-bit resolution with integrated multiplexing is required for low-speed applications up to 10 ksps. The device is suitable for designs operating within a -40°C to +85°C temperature range using a single 5V supply. Consider the ADC0808 if internal address latching is not needed, or the ADC0809CCV/NOPB for surface-mount PLCC packaging alternatives.

Analog To Digital Converters (ADC) Part Context

The ADC0809CCN belongs to the ADC0808/ADC0809 family of 8-bit μP-compatible A/D converters. It is functionally equivalent to the MM74C949-1. The 'CCN' suffix denotes the commercial temperature range variant housed in a 28-pin Plastic Dual In-Line Package (PDIP). This part serves as a legacy solution for parallel interface data acquisition systems.

Analog To Digital Converters (ADC) Replacement Considerations

Public confirmed substitute part numbers include the ADC0808CCN for devices without internal address latches. For surface-mount requirements, the ADC0809CCV/NOPB offers identical electrical specifications in a 28-pin PLCC package. Both alternatives maintain pin compatibility and functional equivalence.