Overview
Features and Benefits
- Full featured evaluation board for the AD5144 in conjunction with low voltage digital potentiometer (digiPOT) motherboard (EVAL-AD5144-2DBZ)
- Various test circuits
- Various power solutions
- Various AC/DC input signals
- PC control in conjunction with the Analog Devices, Inc., EVALSDP-CK1Z (SDP-K1) controller board
Product Details
This user guide describes the evaluation board for evaluating the AD5144—a digital potentiometer with 256 positions and nonvolatile memory. With versatile programmability, the AD5144 allows multiple modes of operation, including read/write access to the RDAC and electrically erasable programmable read-only memory (EEPROM) registers, increment/decrement of resistance, resistance changes in ±6dB scales, wiper setting readback, and extra EEPROM for storing user-defined information, such as memory data for other components or a lookup table.
The AD5144 supports dual supply (±2.25V to ±2.75V) operation and single supply (2.3V to 5.5V) operation, making the device suitable for battery-powered and other applications. The EVAL-MBLV- ARDZ incorporates an internal power supply from the USB and provides on-board 5V, 3V, and +2.5V/−2.5V supplies to EVALAD5144- 2DBZ.
The EVAL-MB-LV-ARDZ interfaces with the USB port of a PC through the system demonstration platform (SDP-K1) controller board. The ACE software is available for download on the EVALAD5144- 2DBZ product page. This software enables the user to program the AD5144. A peripheral module interface (PMOD) connection is also available that allows the connection of different microcontrollers to the EVAL-MB-LV-ARDZ without the SDP-K1 controller board. Note that when a microcontroller is used through the PMOD connection, the SDP-K1 board must be disconnected, and the user cannot use the ACE software.
Complete specifications for the AD5144 part can be found in the AD5144 data sheet, which is available from Analog Devices and must be consulted in conjunction with this user guide when using the evaluation board.