1 Features
1• Relative Accuracy: 1 LSB Max
• Differential Nonlinearity: 1 LSB Max
• 2-mA Full-Scale Current ±20%,
With VREF = ±10 V
• 0.5-μs Settling Time
• Midscale or Zero-Scale Reset
• Separate 4Q Multiplying Reference Inputs
• Reference Bandwidth: 10 MHz
• Reference Dynamics: –105-dB THD
• SPI™-Compatible 3-Wire Interface:
50 MHz
• Double Buffered Registers to Enable
Simultaneous Multichannel Update
• Internal Power-On Reset
• Industry-Standard Pin Configuration

2 Applications
• Automatic Test Equipment
• Instrumentation
• Digitally Controlled Calibration

3 Description
The DAC8812 is a dual, 16-bit, current-output digitalto-
analog converter (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 double-buffered, serial data interface offers highspeed,
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 turnon. An MSB pin
allows system reset assertion (RS) to force all
registers to zero code when MSB = 0, or to midscale
code when MSB = 1.