The AD5544 / AD5554 quad, 16-/14-bit, current output, digital-to-analog converters (DACs) are designed to operate from 2.7 V to 5.5 V supply range. The applied external reference input voltage (VREFx) determines the full-scale output current. Integrated feedback resistors (RFB) 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), a 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 the compact 28-lead SSOP and 32-lead LFCSP. The AD5554 is packaged in the compact 28-lead SSOP APPLICATIONS * Automatic test equipment * Instrumentation * Digitally controlled calibration * 14-bit resolution * INL of ±0.5 LSB (B Grade) * 2 mA full-scale current ± 20%, with VREF = ±10 V * 0.9 μs settling time to ±0.1% * 12 MHz multiplying bandwidth https://elecena.pl/product/692376/quad-current-output-serial-input-16-14-bit-dacs 2008-07-05 https://elecena.pl/product/692376/quad-current-output-serial-input-16-14-bit-dacs 2018-03-29 https://elecena.pl/product/692376/quad-current-output-serial-input-16-14-bit-dacs 2025-01-18