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AD5663 Dataheets PDF



Part Number AD5663
Manufacturers Analog Devices
Logo Analog Devices
Description Dual 16-Bit nanoDAC
Datasheet AD5663 DatasheetAD5663 Datasheet (PDF)

www.DataSheet4U.com 2.7 V to 5.5 V, 250 μA, Rail-to-Rail Output, Dual 16-Bit nanoDAC® AD5663 FEATURES Low power, dual 16-bit nanoDAC Relative accuracy: ±12 LSBs maximum Guaranteed monotonic by design 10-lead MSOP and 3 mm × 3 mm LFCSP_WD 2.7 V to 5.5 V power supply Per channel power-down Power-on reset to zero scale or midscale Hardware LDAC and CLR functions Serial interface; up to 50 MHz FUNCTIONAL BLOCK DIAGRAM VDD LDAC INPUT REGISTER INTERFACE LOGIC INPUT REGISTER DAC REGISTER STRING DAC B.

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www.DataSheet4U.com 2.7 V to 5.5 V, 250 μA, Rail-to-Rail Output, Dual 16-Bit nanoDAC® AD5663 FEATURES Low power, dual 16-bit nanoDAC Relative accuracy: ±12 LSBs maximum Guaranteed monotonic by design 10-lead MSOP and 3 mm × 3 mm LFCSP_WD 2.7 V to 5.5 V power supply Per channel power-down Power-on reset to zero scale or midscale Hardware LDAC and CLR functions Serial interface; up to 50 MHz FUNCTIONAL BLOCK DIAGRAM VDD LDAC INPUT REGISTER INTERFACE LOGIC INPUT REGISTER DAC REGISTER STRING DAC B BUFFER VOUTB DAC REGISTER STRING DAC A VREF SCLK SYNC DIN BUFFER VOUTA AD5663 POWER-ON RESET POWER-DOWN LOGIC 05855-001 LDAC CLR GND APPLICATIONS Process control Data acquisition systems Portable battery-powered instruments Digital gain and offset adjustment Programmable voltage and current sources Programmable attenuators Figure 1. Table 1. Related Devices Part No. AD5623R/AD5643R/AD5663R Description 2.7 V to 5.5 V, dual 12-/14-/16-bit DACs with internal reference GENERAL DESCRIPTION The AD5663, a member of the nanoDAC family, is a low power, dual, 16-bit buffered voltage-out DAC that operates from a single 2.7 V to 5.5 V supply and is guaranteed monotonic by design. The AD5663 requires an external reference voltage to set the output range of the DAC. The part incorporates a power-on reset circuit that ensures the DAC output powers up to 0 V or midscale (AD5663-1) and remains there until a valid write takes place. The part contains a power-down feature that reduces the current consumption of the device to 480 nA at 5 V and provides software-selectable output loads while in power-down mode. The low power consumption of this part in normal operation makes it ideally suited to portable, battery-operated equipment. The power consumption is 1.25 mW at 5 V, going down to 2.4 μW in power-down mode. The on-chip precision output amplifier of the AD5663 allows rail-to-rail output swing to be achieved. The AD5663 uses a versatile, 3-wire serial interface that operates at clock rates up to 50 MHz and is compatible with standard SPI®, QSPI™, MICROWIRE™, and DSP interface standards. PRODUCT HIGHLIGHTS 1. 2. 3. 4. Dual 16-bit DAC; relative accuracy of ±12 LSBs maximum. Available in 10-lead MSOP and 10-lead, 3 mm × 3 mm LFCSP_WD packages. Low power; typically consumes 0.6 mW at 3 V and 1.25 mW at 5 V. 7 μs maximum settling time. 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 that may result from its use. Specifications subject to change without notice. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarks and registered trademarks are the property of their respective owners. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781.329.4700 www.analog.com Fax: 781.461.3113 ©2006 Analog Devices, Inc. All r.


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