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AD5552BR Folha de dados(PDF) 1 Page - Analog Devices |
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AD5552BR Folha de dados(HTML) 1 Page - Analog Devices |
1 / 12 page REV. 0 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 AD5551/AD5552 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 5 V, Serial-Input Voltage-Output, 14-Bit DACs FUNCTIONAL BLOCK DIAGRAMS SERIAL INPUT REGISTER VREF CS DIN SCLK AGND VOUT VDD DGND AD5551 14-BIT DAC 14-BIT DATA LATCH CONTROL LOGIC SERIAL INPUT REGISTER VREFF CS DIN SCLK AGNDF VOUT VDD DGND AD5552 14-BIT DAC 14-BIT DATA LATCH CONTROL LOGIC VREFS LDAC AGNDS RFB INV RFB RINV FEATURES Full 14-Bit Performance 5 V Single Supply Operation Low Power Fast Settling Time Unbuffered Voltage Output Capable of Driving 60 k Loads Directly SPI™/QSPI™/MICROWIRE™-Compatible Interface Standards Power-On Reset Clears DAC Output to 0 V (Unipolar Mode) Schmitt Trigger Inputs for Direct Optocoupler Interface APPLICATIONS Digital Gain and Offset Adjustment Automatic Test Equipment Data Acquisition Systems Industrial Process Control GENERAL DESCRIPTION The AD5551 and AD5552 are single, 14-bit, serial input, voltage output DACs that operate from a single 5 V ± 10% supply. The AD5551 and AD5552 utilize a versatile 3-wire interface that is compatible with SPI, QSPI, MICROWIRE, and DSP inter- face standards. These DACs provide 14-bit performance without any adjust- ments. The DAC output is unbuffered, which reduces power consumption and offset errors contributed by an output buffer. With an external op amp the AD5552 can be operated in bipo- lar mode generating a ±VREF output swing. The AD5552 also includes Kelvin sense connections for the reference and analog ground pins to reduce layout sensitivity. For higher precision applications, please refer to 16-bit DACs AD5541, AD5542, and AD5544. The AD5551 and AD5552 are available in an SO package. PRODUCT HIGHLIGHTS 1. Single Supply Operation. The AD5551 and AD5552 are fully specified and guaranteed for a single 5 V ± 10% supply. 2. Low Power Consumption. Typically 1.5 mW with a 5 V supply. 3. 3-Wire Serial Interface. 4. Unbuffered output capable of driving 60 k Ω loads, which reduces power consumption as there is no internal buffer to drive. 5. Power-On Reset Circuitry. SPI and QSPI are trademarks of Motorola, Inc. MICROWIRE is a trademark of National Semiconductor Corporation. |
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