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AD5542BR 데이터시트(PDF) 1 Page - Analog Devices |
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AD5542BR 데이터시트(HTML) 1 Page - Analog Devices |
1 / 12 page 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 AD5541/AD5542 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., 1999 5 V, Serial-Input Voltage-Output, 16-Bit DACs FUNCTIONAL BLOCK DIAGRAMS SERIAL INPUT REGISTER REF CS DIN SCLK AGND VOUT VDD DGND AD5541 16-BIT DAC 16-BIT DATA LATCH CONTROL LOGIC SERIAL INPUT REGISTER REFF CS DIN SCLK AGNDF VOUT VDD DGND AD5542 16-BIT DAC 16-BIT DATA LATCH CONTROL LOGIC REFS LDAC AGNDS RFB INV RFB RINV FEATURES Full 16-Bit Performance 5 V Single Supply Operation Low Power Short 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 AD5541 and AD5542 are single, 16-bit, serial input, voltage output DACs that operate from a single 5 V ± 10% supply. The AD5541 and AD5542 utilize a versatile 3-wire interface that is compatible with SPI, QSPI, MICROWIRE, and DSP inter- face standards. These DACs provide 16-bit performance without any adjust- ments. The DAC output is unbuffered, which reduces power consumption and offset errors contributed to by an output buffer. The AD5542 can be operated in bipolar mode generating a ± V REF output swing. The AD5542 also includes Kelvin sense connections for the reference and analog ground pins to reduce layout sensitivity. The AD5541 and AD5542 are available in an SO package. PRODUCT HIGHLIGHTS 1. Single Supply Operation. The AD5541 and AD5542 are fully specified and guaranteed for a single 5 V ± 10% supply. 2. Low Power Consumption. These parts consume typically 1.5 mW with a 5 V supply. 3. 3-Wire Serial Interface. 4. Unbuffered output capable of driving 60 k Ω loads. This 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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