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DAC7822IRTAT Datasheet(PDF) 1 Page - Texas Instruments |
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DAC7822IRTAT Datasheet(HTML) 1 Page - Texas Instruments |
1 / 24 page BurrBrown Products from Texas Instruments DAC7822 FEATURES DESCRIPTION APPLICATIONS 12-Bit R-2RDACA 12-Bit R-2RDACB LATCH R A FB I 1A OUT I 2A OUT I 1B OUT DAC /B A CS R/W V DD DB0 DATA INPUTS DB11 LDAC CLR I 2B OUT LATCH INPUT BUFFER CONTROL LOGIC R 1 2R R FB 2R R 3 2R R A 3 R A 2_3 R A 2 V A REF R A 1 R 2 2R R 3 2R R 2 2R GND POWER-ON RESET R B 3 R B 2_3 R B 2 V B REF R B 1 R FBB R 1 2R R FB 2R DAC7822 SBAS374A – JUNE 2006 – REVISED JULY 2007 Dual, 12-Bit, Parallel Input, Multiplying Digital-to-Analog Converter • ±1LSB INL The DAC7822 is a dual, CMOS, 12-bit, current output digital-to-analog converter (DAC). This device • 2.5V to 5.5V Supply Operation operates from a 2.5V to 5.5V power supply, making it • Fast Parallel Interface: suitable for battery-powered and many other 17ns Write Cycle applications. • Update Rate of 20.4MSPS The DAC7822 operates with a fast parallel interface. • 10MHz Multiplying Bandwidth Data readback allows the user to read the contents • ±15V Reference Input of the DAC register via the DB pins. On power-up, the internal register and latches are filled with zeroes • Extended Temperature Range: and the DAC outputs are at zero scale. –40 °C to +125°C The DAC7822 offers excellent 4-quadrant • 40-Lead QFN multiplication characteristics, with large signal • 12-Bit Monotonic multiplying bandwidth of 10MHz. The applied • 4-Quadrant Multiplication external reference input voltage (VREF) determines • Power-On Reset with Brownout Detection the full-scale output current. An integrated feedback resistor (RFB) provides temperature tracking and • Readback Function full-scale voltage output when combined with an • Industry-Standard Pin Configuration external current-to-voltage precision amplifier. The • Pin-Compatible with the AD5405 DAC7822 also includes the resistors necessary for 4-quadrant multiplication and other configuration modes. • Portable Battery-Powered Instruments The DAC7822 is available in a 40-lead QFN • Waveform Generators package. • Analog Processing • Programmable Amplifiers and Attenuators • Digitally-Controlled Calibration • Programmable Filters and Oscillators • Ultrasound Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. All trademarks are the property of their respective owners. PRODUCTION DATA information is current as of publication date. Copyright © 2006–2007, Texas Instruments Incorporated Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. |
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