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AD7568 Datasheet(PDF) 1 Page - Analog Devices |
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AD7568 Datasheet(HTML) 1 Page - Analog Devices |
1 / 12 page FUNCTIONAL BLOCK DIAGRAM R B R F DAC A DAC A LATCH INPUT LATCH A INPUT LATCH B INPUT LATCH C INPUT LATCH D INPUT LATCH E INPUT LATCH F INPUT LATCH G DAC B LATCH DAC C LATCH DAC D LATCH DAC E LATCH DAC F LATCH DAC G LATCH DAC B DAC C DAC D DAC E DAC F DAC G V B REF V D REF R G FB V G REF V F REF V E REF FB FB R E R D R C FB FB R A FB REF V A V C REF V DD DGND LDAC CLR AD7568 12 12 12 12 12 12 12 12 12 12 12 12 12 12 V H REF A0 CONTROL LOGIC + INPUT SHIFT REGISTER CLKIN SDIN SDOUT INPUT LATCH H DAC H LATCH DAC H R H FB 12 12 FSIN I A I A I B I B I C I D I C I D I E I F I E I F I G I H I G I H AGND 12 OUT1 OUT2 OUT1 OUT2 OUT1 OUT2 FB OUT1 OUT2 OUT1 OUT2 OUT1 OUT2 OUT1 OUT2 OUT1 OUT2 a LC2MOS Octal 12-Bit DAC AD7568 One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 617/329-4700 Fax: 617/326-8703 FEATURES Eight 12-Bit DACs in One Package 4-Quadrant Multiplication Separate References Single +5 V Supply Low Power: 1 mW Versatile Serial Interface Simultaneous Update Capability Reset Function 44-Pin PQFP and PLCC APPLICATIONS Process Control Automatic Test Equipment General Purpose Instrumentation PIN CONFIGURATIONS Plastic Quad Flatpack Plastic Leaded Chip Carrier AD7568 TOP VIEW (Not to Scale) 33 32 31 30 29 28 27 26 25 24 23 1 2 3 4 5 6 7 8 9 10 11 PIN 1 IDENTIFIER NC V B REF R G FB V G REF V F REF FB R F R C FB FB R B R A FB REF V A V C REF V H REF R H FB I C I F NC NC = NO CONNECT OUT1 I C OUT2 I B OUT1 I B OUT2 OUT1 I F OUT2 I G OUT1 I G OUT2 AD7568 PQFP TOP VIEW Not to Scale NC = NO CONNECT NC VREF C VREF B RFB B IOUT1 B IOUT1 C NC VREF F VREF G RFB G RFB F IOUT2 F VREF A RFB A IOUT2 B IOUT2 G VREF H RFB H IOUT1 G 44 1 2 64 5 21 24 23 22 18 20 19 39 38 35 34 33 37 36 3 7 8 11 12 13 9 10 40 41 42 25 28 27 26 43 31 30 29 32 15 16 17 14 TOP VIEW (Not to Scale) AD7568 PLCC IOUT2 C RFB C IOUT1 F GENERAL DESCRIPTION The AD7568 contains eight 12-bit DACs in one monolithic de- vice. The DACs are standard current output with separate VREF, IOUT1, IOUT2 and RFB terminals. The AD7568 is a serial input device. Data is loaded using FSIN , CLKIN and SDIN. One address pin, A0, sets up a de- vice address, and this feature may be used to simplify device loading in a multi-DAC environment. All DACs can be simultaneously updated using the asynchro- nous LDAC input and they can be cleared by asserting the asynchronous CLR input. The AD7568 is housed in a space-saving 44-pin plastic quad flatpack and 44-lead PLCC. REV. B 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. |
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