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AD7233BN Datenblatt(PDF) 1 Page - Analog Devices |
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AD7233BN Datenblatt(HTML) 1 Page - Analog Devices |
1 / 8 page FUNCTIONAL BLOCK DIAGRAM AD7233 DAC LATCH V DD VSS 12 12 GND LDAC SDIN SCLK SYNC 12-BIT DAC 2R 2R VOUT INPUT SHIFT REGISTER REV. A Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. a LC2MOS 12-Bit Serial Mini-DIP DACPORT AD7233 GENERAL DESCRIPTION The AD7233 is a complete 12-bit, voltage-output, digital-to- analog converter with output amplifier and Zener voltage refer- ence all in an 8-lead package. No external trims are required to achieve full specified performance. The data format is two’s complement, and the output range is –5 V to +5 V. The AD7233 features a fast, versatile serial interface which al- lows easy connection to both microcomputers and 16-bit digital signal processors with serial ports. When the SYNC input is taken low, data on the SDIN pin is clocked into the input shift register on each falling edge of SCLK. On completion of the 16-bit data transfer, bringing LDAC low updates the DAC latch with the lower 12 bits of data and updates the output. Alterna- tively, LDAC can be tied permanently low, and in this case the DAC register is automatically updated with the contents of the shift register when all sixteen data bits have been clocked in. The serial data may be applied at rates up to 5 MHz allowing a DAC update rate of 300 kHz. For applications which require greater flexibility and unipolar output ranges with single supply operation, please refer to the AD7243 data sheet. The AD7233 is fabricated on Linear Compatible CMOS (LC 2MOS), an advanced, mixed-technology process. It is pack- aged in an 8-lead DIP package. PRODUCT HIGHLIGHTS 1. Complete 12-Bit DACPORT ®. 2. The AD7233 is a complete, voltage output, 12-bit DAC on a single chip. This single-chip design is inherently more reli- able than multichip designs. 3. Simple 3-wire interface to most microcontrollers and DSP processors. 4. DAC Update Rate—300 kHz. 5. Space Saving 8-Lead Package. FEATURES 12-Bit CMOS DAC with On-Chip Voltage Reference Output 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 APPLICATIONS Process Control Industrial Automation Digital Signal Processing Systems Input/Output Ports One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781/329-4700 World Wide Web Site: http://www.analog.com Fax: 781/326-8703 © Analog Devices, Inc., 2000 DACPORT is a registered trademark of Analog Devices, Inc. |
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