AD74412RBCPZ-REEL

ADCs/DACs - Special Purpose Overview

The AD74412RBCPZ-REEL is a quad-channel, software-configurable input/output device from Analog Devices. It integrates a 16-bit Σ-Δ ADC and four 13-bit DACs into a single chip with SPI interface. The device supports voltage input (0 V to 10 V), current input (0 mA to 25 mA), voltage output (0 V to 11 V), current output (0 mA to 25 mA), digital input, and RTD measurement modes. It features an internal 2.5 V reference, on-chip diagnostics for open/short circuits, and robust architecture tested to ±1 kV surge per IEC61000-4-5. Operating temperatures range from −40°C to +85°C in a 64-lead LFCSP package.

ADCs/DACs - Special Purpose Feature Summary

• Quad-channel software configurable I/O supporting voltage/current input/output, digital input, and RTD measurement.
• Integrated 16-bit Σ-Δ ADC with optional 50 Hz and 60 Hz rejection and 13-bit monotonic DACs.
• Robust architecture with screw terminals protected to ±40 V and surge testing to ±1 kV per IEC61000-4-5.
• On-chip diagnostics including open circuit, short-circuit detection, and internal temperature sensor.

ADCs/DACs - Special Purpose Applications

• Building control systems
• Process control applications
• Industrial automation

ADCs/DACs - Special Purpose Procurement Notes

Verify the REEL suffix indicates tape-and-reel packaging when sourcing. Confirm AVDD supply requirements of 14 V to 26.4 V and DVCC of 2.7 V to 5.5 V for proper operation. Ensure IOVDD levels match the host SPI logic voltage. Check for companion components like external references if higher precision than the internal 2.5 V reference is required.

ADCs/DACs - Special Purpose Selection Notes

Select this component for applications requiring mixed-signal I/O in a single package. The 16-bit ADC resolution suits precision voltage and current sensing. The 13-bit DACs support standard industrial loops. Consider the ±40 V terminal protection for harsh environments. Verify that the 64-lead LFCSP package fits the PCB layout constraints.

ADCs/DACs - Special Purpose Part Context

The AD74412R belongs to a family of software-configurable I/O devices designed for building and process control. It replaces discrete ADC, DAC, and signal conditioning components. The BC part number variant specifies the specific pinout and package configuration within the AD74412R series.

ADCs/DACs - Special Purpose Replacement Considerations

Check for direct pin-compatible upgrades within the AD74412R series. Verify if older revisions require firmware updates due to register map changes. Ensure replacement units meet the same IEC61000-4-5 surge immunity standards.