DDC112UG4

Analog To Digital Converters (ADC) Overview

The DDC112UG4 is a dual current input, 20-bit analog-to-digital converter manufactured by Texas Instruments. It utilizes a sigma-delta architecture and is housed in a 28-pin SOIC package. The device operates with single-ended inputs and supports an SPI digital interface. It requires analog and digital power supplies within the range of 4.75 V to 5.25 V. The component functions as a monolithic charge measurement ADC with integrated digital filter noise reduction capabilities.

Analog To Digital Converters (ADC) Feature Summary

• Dual-channel architecture for simultaneous current input processing
• High-resolution 20-bit sigma-delta conversion structure
• Integrated digital filter providing significant noise reduction
• Standard SPI-compatible serial data output interface

Analog To Digital Converters (ADC) Applications

• Computed Tomography (CT) systems
• X-ray detector readout electronics
• Medical imaging sensor interfaces

Analog To Digital Converters (ADC) Procurement Notes

Verify the G4 suffix indicates lead-free compliance against the specific manufacturer datasheet revision. Confirm the SOIC-28 package dimensions match the target PCB footprint. Ensure the operating temperature range aligns with system requirements, as industrial variants may differ from commercial grades.

Analog To Digital Converters (ADC) Selection Notes

Select this component when high-resolution digitization of low-level currents is required. The dual-input design simplifies differential or paired detector connections. Verify that the external reference voltage meets the precision requirements for the intended application before finalizing the bill of materials.

Analog To Digital Converters (ADC) Part Context

This part belongs to the DDC112 family of charge measurement ADCs designed for medical imaging. The UG4 designation typically denotes a specific packaging and environmental compliance variant of the standard DDC112U model. It shares core electrical specifications with other members of the series while differing in physical package attributes.

Analog To Digital Converters (ADC) Replacement Considerations

The DDC112U serves as the primary functional equivalent. Verify pin compatibility and package dimensions before substitution. Other family members like the DDC112YK/250 offer different packages but require layout adjustments.