AD7233AN Datasheet

Data Acquisition - Digital to Analog Converters (DAC)


The AD7233AN is a complete 12-bit, voltage-output, digital-toanalogconverter with output amplifier and Zener voltage referenceall in an 8-lead package. No external trims are required toachieve full specified performance. The data format is two’scomplement, and the output range is –5 V to +5 V.The AD7233AN features a fast, versatile serial interface which allowseasy connection to both microcomputers and 16-bit digitalsignal processors with serial ports. When the SYNC input istaken low, data on the SDIN pin is clocked into the input shiftregister on each falling edge of SCLK. On completion of the16-bit data transfer, bringing LDAC low updates the DAC latchwith the lower 12 bits of data and updates the output. Alternatively,LDAC can be tied permanently low, and in this case theDAC register is automatically updated with the contents of theshift register when all sixteen data bits have been clocked in.The serial data may be applied at rates up to 5 MHz allowing aDAC update rate of 300 kHz.For applications which require greater flexibility and unipolaroutput ranges with single supply operation, please refer to theAD7243 data sheet.The AD7233 is fabricated on Linear Compatible CMOS(LC2MOS), an advanced, mixed-technology process. It is packagedin an 8-lead DIP package. AD7233AN Features • 12-Bit CMOS DAC withOn-Chip Voltage ReferenceOutput Amplifier–5 V to +5 V Output Range• Serial Interface• 300 kHz DAC Update Rate• Small Size: 8-Pin Mini-DIP• Nonlinearity: 1/2 LSB TMIN to TMAX• Low Power Dissipation: 100 mW typ AD7233AN Applications • Process Control• Industrial Automation• Digital Signal Processing Systems• Input/Output Ports


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