DDC112Y/250

Analog To Digital Converters (ADC) Overview

The DDC112Y/250 is a dual current input, 20-bit analog-to-digital converter manufactured by Texas Instruments. It utilizes a sigma-delta architecture and features two single-ended current inputs with an SPI interface. The device operates on a 4.75 V to 5.25 V analog supply and a 4.75 V digital supply. It supports sampling rates up to 2 kS/s and functions within a temperature range of -40°C to +85°C. Packaged in a TQFP-32 format, it includes an external reference type and consumes approximately 100 mW of power.

Analog To Digital Converters (ADC) Feature Summary

• Integrates dual current input channels for direct photosensor interfacing
• Provides high-resolution 20-bit data conversion via sigma-delta modulation
• Supports cascaded output configurations for system expansion

Analog To Digital Converters (ADC) Applications

• Computed Tomography (CT) scanners
• Direct Photosensor Data Acquisition Systems (Das)
• Pyrometer and Infrared Control systems
• Precision Process Analysis equipment

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix designation when ordering, as packaging formats vary between cut tape and reel quantities. Confirm that the selected variant meets the required operating temperature range and voltage specifications for the target application environment before finalizing procurement.

Analog To Digital Converters (ADC) Selection Notes

Select this component for applications requiring precise integration of low-level current signals from photodiodes or similar sensors. Ensure the design accommodates the external reference requirement and the specific SPI communication protocol. Evaluate thermal management needs given the 100 mW power dissipation characteristic of the device.

Analog To Digital Converters (ADC) Part Context

This part belongs to the DDC112 series of dual-channel, high-resolution ADCs designed specifically for integrating current-mode signals. It serves as a specialized solution for medical imaging and industrial sensing applications where high dynamic range and low noise are critical requirements for accurate signal digitization.

Analog To Digital Converters (ADC) Replacement Considerations

The DDC112YK/250 is a documented alternative within the same family, offering similar functionality but potentially differing in package details or operational temperature ranges. Verify pin compatibility and electrical specifications before substituting.