DAC7821

BurrĆBrown Products from Texas Instruments DAC7821 DAC7821 SBAS365B – OCTOBER 2005 – REVISED JULY 2007 12-Bit, Parallel Input, Multiplying Digital-to-Analog Converter FEATURES 2.5V to 5.5V Supply Operation Fast Parallel Interface: 17ns Write Cycle Update Rate of 20.4MSPS 10MHz Multiplying Bandwidth ±10V Reference Input Low Glitch Energy: 5nV-s Extended Temperature Range: –40°C to +125°C 20-Lead TSSOP Packages 12-Bit Monotonic ±1LSB INL 4-Quadrant Multiplication Power-On Reset with Brownout Detection Readback Function Industry-Standard Pin Configuration APPLICATIONS Portable Battery-Powered Instruments Waveform Generators Analog Processing Programmable Amplifiers and Attenuators Digitally-Controlled Calibration Programmable Filters and Oscillators Composite Video Ultrasound DESCRIPTION The DAC7821 is a CMOS 12-bit current output digital-to-analog converter (DAC). This device operates from a single 2.5V to 5.5V power supply, making it suitable for battery-powered and many other applications. This DAC 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 DAC7821 offers excellent 4-quadrant multiplication characteristics, with a large signal multiplying bandwidth of 10MHz. The applied external reference input voltage (VREF) determines the full-...