Features and Benefits
- Full-featured evaluation board for the AD5544
- Graphic user interface software for board control and data analysis
- Connector to EVAL-SDP-CB1Z system demonstration platform board
- Various power supply options
The AD5544 quad, 16-bit, current output, digital-to-analog converter (DAC) is designed to operate in a 2.7 V to 5.5 V supply range. But this voltage is limited up to 3.3 V due to EVAL-SDP-CB1Z restrictions.
The applied external reference input voltage (VREFx) determines the full-scale output current. Integrated feedback resistors (RFBx) provide temperature-tracking, full-scale voltage outputs when combined with an external I-to-V precision amplifier.
A double-buffered serial data interface offers high speed, 3-wire, SPI- and microcontroller-compatible inputs using serial data in (SDI), chip select (CS), and clock (CLK) signals. In addition, a serial data out pin (SDO) allows for daisy-chaining when multiple packages are used. A common, level-sensitive, load DAC strobe (LDAC) input allows the simultaneous update of all DAC outputs from previously loaded input registers. Additionally, an internal power-on reset forces the output voltage to 0 at system turn on. An MSB pin allows system reset assertion (RS) to force all registers to zero code when MSB = 0 or to half-scale code when MSB = 1.
The AD5544 is packaged in a compact 28-lead SSOP. The EV-AD5544 board is used in conjunction with the EVAL-SDP-CB1Z system demonstration platform (SDP) board available from Analog Devices, Inc., which is purchased separately from the evaluation board. The USB-to-SPI communication to the AD5544 is completed using this Blackfin®-based demonstration board. The software offers a waveform generator.
Markets and Technologies
Documentation & Resources
UG-285: Evaluating the AD5544 Current Output/Serial Input DAC6/15/2011602 kB
Pricing displayed is based on 1-piece.
Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.