The DAC8802 is a dual, 14-bit, current-output digital-to-analogconverter (DAC) designed to operate from a single 2.7 V to 5.5 V supply.
The applied external reference input voltage VREF determines the full-scale output current. An internal feedback resistor (RFB) provides temperature tracking for the full-scale output when combined with an external I-to-V precision amplifier.
A doubled-buffered, serial data interface offers high-speed, 3-wire, SPI and microcontroller compatible inputs using serial data in (SDI), clock (CLK), and a chip-select (CS). A common level-sensitive load DAC strobe (LDAC) input allows simultaneous update of all DAC outputs from previously loaded input registers. Additionally, an internal power-on reset forces the output voltage to zero 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 DAC8802 is available in an TSSOP-16 package.
SPI is a trademark of Motorola, Inc.
All other trademarks are the property of their respective owners.
|Part number||Order||Resolution (Bits)||Architecture||DAC channels||Interface||Output range (Max) (mA/V)||Output range (Min) (mA/V)||Settling time (µs)||Output type||Reference: type||Rating||Operating temperature range (C)||Features|
||14||Multiplying DAC||2||SPI||2||0||0.5||Unbuffered Current||Ext||Catalog||-40 to 85||Reset to Mid-Scale|