Analog Devices: EVAL-AD5755-1SDZ Evaluation Board for the AD5755-1 16-Bit Voltage Output DAC, Dynamic Power Control, HART Connectivity

Kit Overview

The EVAL-AD5755-1SDZEVAL-AD5755-1SDZ is a full-featured evaluation board that is designed to allow the user to easily evaluate the features of  AD5755-1AD5755-1 quad channel, 16-bit current source and voltage output DAC with dynamic power control and HART connectivity. The board can be controlled by two means: via the on-board connector (J11) or via the SDP connector (J9). The SDP-B System Development Platform board (EVAL-SDP-CB1ZEVAL-SDP-CB1Z) allows the evaluation board to be controlled through the USB port of a Windows XP (SP2 or later) or Windows Vista (32-bit or 64-bit) or Windows 7 (32-bt or 64-bit) based PC using the EVAL-AD575xSDZ evaluation software.

The AD5755-1AD5755-1 is a quad, voltage and current output DAC that operates with a power supply range from −26.4 V to +33 V. On-chip dynamic power control minimizes package power dissipation in current mode. This is achieved by regulating the voltage on the output driver from 7.4 V to 29.5 V using a dc-to-dc boost converter optimized for minimum on-chip power dissipation. Each channel has a corresponding CHART pin so that HART signals can be coupled onto the current output of the AD5755-1.

The part uses a versatile 3-wire serial interface that operates at clock rates of up to 30 MHz and is compatible with standard SPI, QSPI, MICROWIRE, DSP, and microcontroller interface standards. The interface also features optional CRC-8 packet error checking, as well as a watchdog timer that monitors activity on the interface.

Key Applications: Process control, Actuator control, PLCs, HART network connectivity