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1 / 28 page 40-Channel, 14-Bit, Parallel and Serial Input, Bipolar Voltage-Output DAC AD5379 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: 781.326.8703 © 2004 Analog Devices, Inc. All rights reserved. FEATURES 40-channel DAC in 13 mm × 13 mm 108-lead CSPBGA Guaranteed monotonic to 14 bits Buffered voltage outputs Output voltage span of 3.5 V × VREF(+) Maximum output voltage span of 17.5 V System calibration function allowing user-programmable offset and gain Pseudo differential outputs relative to REFGND Clear function to user-defined REFGND (CLR pin) Simultaneous update of DAC outputs (LDAC pin) DAC increment/decrement mode Channel grouping and addressing features Interface options: Parallel interface DSP/microcontroller-compatible 3-wire serial interface 2.5 V to 5.5 V JEDEC-compliant digital levels SDO daisy-chaining option Power-on reset Digital reset (RESET pin and soft reset function) APPLICATIONS Level setting in automatic test equipment (ATE) Variable optical attenuators (VOA) Optical switches Industrial control systems FUNCTIONAL BLOCK DIAGRAM VCC VDD VSS AGND RESET POWER-ON RESET DGND LDAC VBIAS VREF1(+) VREF1(–) REFGND A1 VBIAS DAC 0–1 DAC REG 0–1 DAC REG 2 DAC REG 7 DAC REG 8–9 INPUT REG 0–1 INPUT REG 2 INPUT REG 7 INPUT REG 8–9 DAC 2 DAC 7 DAC 8–9 AD5379 DCEN/WR SYNC/CS REG0 REG1 DB13 SCLK/DB12 DIN/DB11 DB0 A7 A0 SER/PAR DIN SCLK SDO FIFOEN REFGND B1 REFGND B2 REFGND C1 REFGND C2 REFGND D1 REFGND D2 BUSY VREF2(+) VREF2(–) REFGND A2 CLR VOUT 0 VOUT 1 VOUT 2 VOUT 3 VOUT 4 VOUT 5 VOUT 6 VOUT 7 VOUT 8 VOUT 9 VOUT 10 VOUT 39 ×4 14/ 14/ 14/ 14/ 14/ 14/ 14/ 14/ 14/ 14/ 14/ 14/ 14/ 14/ m REG0–1 c REG0–1 m REG2 c REG2 m REG7 c REG7 m REG8–9 c REG8–9 14/ 14/ 14/ 14/ 14/ 14/ 14/ Figure 1. AD5379—Protected by U.S. Patent No. 5,969,657; other patents pending. |
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Mô tả tương tự - AD5379ABC |
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