FEATURES
· ±1LSB INL
· 2.5V to 5.5V Supply Operation
· Fast Parallel Interface:
17ns Write Cycle
· Update Rate of 20.4MSPS
· 10MHz Multiplying Bandwidth
· ±15V Reference Input
· Extended Temperature Range:
–40°C to +125°C
· 40-Lead QFN
· 12-Bit Monotonic
· 4-Quadrant Multiplication
· Power-On Reset with Brownout Detection
· Readback Function
· Industry-Standard Pin Configuration
· Pin-Compatible with the AD5405

APPLICATIONS
· Portable Battery-Powered Instruments
· Waveform Generators
· Analog Processing
· Programmable Amplifiers and Attenuators
· Digitally-Controlled Calibration
· Programmable Filters and Oscillators
· Ultrasound

DESCRIPTION
The DAC7822 is a dual, CMOS, 12-bit, current
output digital-to-analog converter (DAC). This device
operates from a 2.5V to 5.5V power supply, making it
suitable for battery-powered and many other applications.
The DAC7822 operates with a fast parallel interface.
Data readback allows the user to read the contents
of the DAC register via the DB pins. On power-up,
the internal register and latches are filled with zeroes
and the DAC outputs are at zero scale.
The DAC7822 offers excellent 4-quadrant
multiplication characteristics, with large signal
multiplying bandwidth of 10MHz. The applied
external reference input voltage (VREF) determines
the full-scale output current. An integrated feedback
resistor (RFB) provides temperature tracking and
full-scale voltage output when combined with an
external current-to-voltage precision amplifier. The
DAC7822 also includes the resistors necessary for
4-quadrant multiplication and other configuration
modes.
The DAC7822 is available in a 40-lead QFN
package.