ADC0844CCN

Analog To Digital Converters (ADC) Overview

The ADC0844CCN is a CMOS 8-bit successive approximation analog-to-digital converter featuring a 4-channel analog input multiplexer. It operates with a single 5 VDC supply and supports ratiometric or absolute reference configurations. The device provides TRI-STATE output latches for direct microprocessor bus interfacing without additional logic. Key electrical specifications include a maximum conversion time of 40 μs, a total unadjusted error of ±1 LSB, and low power consumption of 15 mW. It accommodates analog input ranges from 0 V to 5 V within the specified operating temperature range.

Analog To Digital Converters (ADC) Feature Summary

• Integrated 4-channel multiplexer configurable for single-ended, differential, or pseudo-differential modes
• TRI-STATE digital outputs enable direct connection to standard microprocessor data buses
• Internal clock eliminates external timing components, simplifying system design
• Operates on a single 5 VDC supply with no zero or full-scale adjustment required

Analog To Digital Converters (ADC) Applications

• Microprocessor-based data acquisition systems requiring multi-channel signal sampling
• Industrial process control applications utilizing ratiometric sensor interfaces
• Battery-powered instrumentation benefiting from low power consumption
• Automotive sensing circuits compatible with standard 5 V logic levels

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix 'CCN' corresponds to the commercial temperature grade (0°C to +70°C) and 20-pin PDIP package. Confirm RoHS compliance status by checking the current Texas Instruments Product Folder, as environmental classifications may vary between legacy and NOPB versions. Ensure interface logic requirements align with the device's TRI-STATE output capabilities.

Analog To Digital Converters (ADC) Selection Notes

Select this component when an 8-bit resolution with integrated multiplexing is sufficient for the application. The ADC0844CCN is appropriate for systems where a 40 μs conversion time meets the sampling rate requirements. Consider the ±1 LSB total unadjusted error specification against system accuracy needs. Verify that the 20-pin PDIP package fits the available PCB footprint constraints.

Analog To Digital Converters (ADC) Part Context

This device belongs to the Texas Instruments ADC084x family of 8-bit A/D converters. It shares architectural similarities with the ADC0848, which offers an 8-channel multiplexer in a 24-pin or 28-pin package. The ADC0844 specifically targets applications requiring four analog inputs with software-selectable input configurations.

Analog To Digital Converters (ADC) Replacement Considerations

The ADC0844CCN/NOPB serves as the lead-free compliant replacement for the legacy ADC0844CCN. Designers should verify pinout compatibility and ensure that any changes in moisture sensitivity levels or packaging dimensions do not impact existing board layouts.