ADC0817CCN

Analog To Digital Converters (ADC) Overview

The ADC0817CCN is an 8-bit monolithic CMOS analog-to-digital converter featuring a 16-channel multiplexer and microprocessor-compatible control logic. It utilizes successive approximation conversion with a chopper-stabilized comparator to ensure high accuracy and minimal temperature drift. The device operates on a single 5 VDC supply, consuming approximately 15 mW of power. It provides latched TRI-STATE digital outputs that meet TTL voltage level specifications. The ADC0817 specifies a total unadjusted error of ±1 LSB at room temperature, making it suitable for applications requiring direct interfacing with standard microprocessors without external zero or full-scale adjustments.

Analog To Digital Converters (ADC) Feature Summary

• Integrated 16-channel single-ended analog multiplexer with latched address inputs
• Successive approximation architecture with chopper-stabilized comparator
• Latched TRI-STATE digital outputs compatible with TTL logic levels
• Single 5 VDC supply operation with low power consumption (15 mW typical)

Analog To Digital Converters (ADC) Applications

• Process and machine control systems
• Consumer electronics data acquisition
• Automotive measurement applications

Analog To Digital Converters (ADC) Procurement Notes

Verify the marketing status of the ADC0817CCN before design finalization. Texas Instruments lists this specific part number as NRND (Not Recommended for New Designs), indicating it is in production only to support existing customers. Designers should confirm availability through authorized distributors and consider the ADC0817CCN/NOPB variant if RoHS compliance is required for new manufacturing runs.

Analog To Digital Converters (ADC) Selection Notes

Select the ADC0817CCN when an 8-bit resolution with 16 input channels is required for cost-sensitive microprocessor interfaces. The ADC0817 offers a tighter total unadjusted error specification (±1 LSB) compared to the ADC0816 (±½ LSB). Ensure the application supports a single 5 V supply and can accommodate a maximum conversion time of 116 µs at a 640 kHz clock frequency.

Analog To Digital Converters (ADC) Part Context

The ADC0817 is functionally equivalent to the MM74C948-1 and serves as the 16-channel expansion counterpart to the 8-channel ADC0808/ADC0809 series. While the ADC0808/0809 utilize an 8-bit A/D converter with an 8-channel multiplexer, the ADC0816/0817 integrate a 16-channel multiplexer on the same die. This integration reduces board space and component count for multi-channel data acquisition systems.

Analog To Digital Converters (ADC) Replacement Considerations

For lead-free requirements, use the ADC0817CCN/NOPB. For 8-channel applications, the ADC0808 or ADC0809 are functional alternatives with fewer inputs. Modern replacements may require interface adaptation due to differences in clocking and control logic architectures.