AD74115HBCPZ-RL7

ADCs/DACs - Special Purpose Overview

The AD74115HBCPZ-RL7 is a single-channel, software-configurable industrial input/output device featuring an integrated HART modem. It includes a 16-bit Sigma-Delta ADC and a 14-bit monotonic DAC with a 2.5 V on-chip reference. The device supports voltage and current inputs/outputs, RTD measurements (2-, 3-, and 4-wire), thermocouple measurement, and digital I/O. It operates on a wide power supply range of AVDD +6 V to +28.8 V and DVCC +2.7 V to +5.5 V. Communication is handled via SPI. The component is housed in a 48-lead LFCSP package and functions within a temperature range of −40°C to +105°C.

ADCs/DACs - Special Purpose Feature Summary

• Single-channel software configurable input and output supporting multiple modes including voltage/current I/O, RTD, and thermocouple measurement.
• Integrated HART modem for communication alongside standard SPI interface.
• 16-bit ADC with optional 50 Hz and 60 Hz rejection and 14-bit monotonic DAC.
• On-chip diagnostics including open-circuit and short-circuit detection.

ADCs/DACs - Special Purpose Applications

• Isolated industrial control systems
• Process control
• Factory automation
• Building control systems

ADCs/DACs - Special Purpose Procurement Notes

Verify the specific ordering suffix RL7 indicates reel packaging when sourcing this component. Confirm that the manufacturer Analog Devices Inc. is the sole source for this part number. Ensure compatibility with the required 48-lead LFCSP footprint during procurement planning.

ADCs/DACs - Special Purpose Selection Notes

Select this device for applications requiring a single chip to handle diverse analog and digital signals with HART protocol support. Consider the wide input ranges and programmable excitation currents for RTD sensing. Verify that the system power supplies align with the specified AVDD and DVCC ranges for optimal performance.

ADCs/DACs - Special Purpose Part Context

This component belongs to the AD74115H series from Analog Devices Inc., designed for robust industrial environments. It serves as a versatile front-end processor for general-purpose analog and digital I/O, integrating signal conditioning and communication capabilities into a compact form factor suitable for space-constrained industrial modules.

ADCs/DACs - Special Purpose Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult Analog Devices technical support for potential cross-references or updated product line information if this specific variant is unavailable.

ADCs/DACs - Special Purpose FAQ

What is the resolution of the ADC and DAC in the AD74115H?

The AD74115H features a 16-bit Sigma-Delta ADC and a 14-bit monotonic DAC.

Does the AD74115H support HART communication?

Yes, the device includes an integrated HART modem that communicates via the SPI interface.

What types of RTD measurements are supported?

The device supports 2-wire, 3-wire, and 4-wire RTD measurements with programmable excitation currents.