DDC118IRTCR

Analog To Digital Converters (ADC) Overview

The DDC118IRTCR is a 32-channel, current-input analog-to-digital converter manufactured by Texas Instruments. It features a sigma-delta architecture with 20-bit resolution and supports multiple input ranges including ±50 nA, ±500 nA, ±5 µA, ±50 µA, ±500 µA, ±5 mA, and ±50 mA. The device operates on a single supply voltage ranging from 4.75 V to 5.25 V for both analog and digital sections. It communicates via an SPI-compatible serial interface and functions within a temperature range of -40°C to +85°C. The component is housed in a TQFP-64 package.

Analog To Digital Converters (ADC) Feature Summary

• Provides 32 independent channels for high-density current sensing applications
• Integrates programmable gain amplifiers with seven selectable full-scale input ranges
• Utilizes sigma-delta modulation to achieve high-resolution 20-bit data conversion
• Supports standard SPI communication protocols for system integration

Analog To Digital Converters (ADC) Applications

• Gas detection systems requiring multi-point sensor monitoring
• Industrial process control instrumentation
• Medical diagnostic equipment
• Environmental monitoring stations

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix 'IRTCR' against the manufacturer's official documentation to confirm the exact tape-and-reel quantity and packaging specifications. Ensure that the operating environment remains within the specified industrial temperature limits and that the power supply voltage stays within the required 4.75 V to 5.25 V range for proper functionality.

Analog To Digital Converters (ADC) Selection Notes

Select this component when designing systems that require simultaneous acquisition of multiple low-level current signals. The integrated programmable gain amplifiers eliminate the need for external signal conditioning circuitry. Consider the TQFP-64 package dimensions during PCB layout planning to ensure adequate clearance and thermal management for the dense channel count.

Analog To Digital Converters (ADC) Part Context

This part belongs to the DDC series of current-input analog-to-digital converters designed for precision measurement tasks. It serves as a specialized solution for applications where direct connection of current-output sensors is necessary without intermediate transimpedance amplifiers. The device consolidates multiple ADC channels into a single integrated circuit to reduce board space.

Analog To Digital Converters (ADC) Replacement Considerations

The DDC232 is a documented alternative within the same product family offering similar 32-channel capabilities. Verify pin compatibility and software register mapping before substituting components in existing designs.