ADC0844CCN/NOPB

Analog To Digital Converters (ADC) Overview

The ADC0844CCN/NOPB 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 consumes 15 mW of power. The device provides a maximum conversion time of 40 μs and includes TRI-STATE output latches for direct microprocessor bus interfacing without additional logic. It supports software-configurable differential, pseudo-differential, and single-ended input modes. The component is housed in a standard width 20-pin PDIP package and functions within an operating temperature range of 0°C to +70°C.

Analog To Digital Converters (ADC) Feature Summary

• 8-bit resolution with 4-channel multiplexer supporting differential, pseudo-differential, and single-ended configurations
• Direct interface to microprocessors via TRI-STATE data bus outputs requiring no external logic
• Internal clock system enabling a maximum conversion time of 40 μs
• Operates ratiometrically or with a dedicated 5 VDC voltage reference

Analog To Digital Converters (ADC) Applications

• Microprocessor-based data acquisition systems
• Industrial process control monitoring
• Battery-powered instrumentation utilizing ratiometric sensing
• Transducer signal conditioning interfaces

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 the 'NOPB' designation indicates lead-free and RoHS compliance status. Ensure the design utilizes a 5 VDC supply rail, as operation outside the 4.5 VDC to 6.0 VDC range may violate absolute maximum ratings.

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 25 kSPS. It is suitable for designs needing direct CPU bus connection without glue logic. Consider the ADC0848 if eight input channels are necessary instead of four. Evaluate source impedance requirements, as high resistance inputs may require buffering due to sampling current spikes.

Analog To Digital Converters (ADC) Part Context

This part belongs to the Texas Instruments ADC084x family of 8-bit A/D converters. The ADC0844 variant specifically integrates a 4-channel multiplexer, whereas the ADC0848 provides 8 channels. Both share identical core conversion architecture and pinout compatibility regarding control signals, differing primarily in analog input count and package options such as PLCC or extended temperature variants.

Analog To Digital Converters (ADC) Replacement Considerations

Public confirmed substitute part numbers: None identified.