DAC7822 - 12-bit, Dual Channel, Parallel Input, Multiplying Digital-to-Analog Converter

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 (V_REF) determines the full-scale output current. An integrated feedback resistor (R_FB) 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.

Products containing the "DAC7822" keyword are: DAC7822IRTAR , DAC7822IRTARG4 , DAC7822IRTARG4 , DAC7822IRTAT , DAC7822IRTAT , DAC7822IRTATG4 , DAC7822IRTATG4 , DAC7822TRTAR

• ±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 BrownoutDetection
• 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

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