0
ACTIVE
Resolution (Bits) |
12 |
Number of DAC channels |
2 |
Interface type |
Parallel |
Output type |
Unbuffered Current |
INL (max) (±LSB) |
1 |
Settling time (µs) |
0.2 |
Reference type |
Ext |
Architecture |
Multiplying DAC |
Rating |
Catalog |
Sample/update rate (Msps) |
10 |
Power consumption (typ) (mW) |
0.0275 |
Operating temperature range (°C) |
-40 to 125 |
WQFN (RTA)-40-36 mm² 6 x 6
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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.
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