AD5758BCPZ-RL7

Overview

The AD5758BCPZ-RL7 is a single-channel, 16-bit digital-to-analog converter (DAC) featuring both current and voltage outputs on a single terminal. It operates with supply rails from -33 V to +33 V, supporting a maximum differential voltage of 60 V. The device integrates dynamic power control (DPC) via an internal buck DC-DC converter to minimize power dissipation. Key specifications include 16-bit resolution, guaranteed monotonicity, and an integrated 12-bit diagnostic ADC. Communication is handled through a versatile 4-wire SPI interface operating up to 50 MHz, which supports optional CRC and watchdog timer functions.

Feature Summary

• Integrated Dynamic Power Control (DPC) using a buck DC-DC converter for thermal management
• Single-terminal output supporting multiple current ranges (e.g., 4–20 mA, ±20 mA) and voltage ranges (e.g., 0–10 V, ±10 V)
• Advanced diagnostics including a 12-bit ADC and output fault protection
• HART connectivity enabled via the CHART pin

Applications

• Process control systems
• Actuator control
• Programmable logic controller (PLC) and distributed control systems (DCS)
• Channel-isolated analog output modules
• HART network connectivity applications

Procurement Notes

Verify the specific suffix RL7 indicates reel packaging when sourcing. Confirm that the BC grade meets the required temperature range and accuracy specifications for the target application. Ensure compatibility with the intended SPI clock rates and logic voltage levels before integration.

Selection Notes

Select this component for applications requiring high robustness against miswire events and EMC interference. The integrated DPC is suitable for space-constrained designs where thermal management is critical. Consider the companion ADP1031 if channel isolation and low total module power dissipation are required.

Part Context

The AD5758 belongs to the Analog Devices AD575x family of precision DACs. It serves as a successor to predecessors like the AD5753, offering improved diagnostic features such as the integrated 12-bit ADC. It is designed to replace older solutions in industrial analog output modules by providing higher integration and better thermal performance.

Replacement Considerations

Direct replacements within the same family include the AD5753. For functional equivalents with similar current/voltage output capabilities, consider the AD5422 or AD5423. Verify pinout and register compatibility when substituting.