AD7543

      The AD7543 is a precision 12-bit monolithic CMOS multiplying DAC designed for serial interface applications.
      The DCA's logic circuitry consists of a 12-bit serial-in parallel-out shift register (Register A) and a 12-bit DAC input register (Register B).Serial data at the AD7543 SRI pin is clocked into Register A on the leading or trailing edge (user selected) of the strobe input.Once Register A is full its contents are located into Register B under control of the LOAD inputs.Initialization is simplified by the use of the CLR input which provides an asynchronnous reset of Register B.Packaged in 16-pin DIP and 20-pin LCCC and PLCC,the AD7543 features excellent gain T.C.(2ppm/ typ;5ppm/ max),+5V operation and latch-free operation.(No protection Schottky Diodes required.)
      What comes next is about the absolute maximum ratings.(TA=+25 ).The minimum VDD to AGND is 0 V and the maximum is +7 V.The minimum VDD to DGND is 0 V and the maximum is +7 V.The AGND TO DGND is VDD+0.3 V.The DGND TO AGND is VDD+0.3 V.The minimum digital input voltage to DGND is -0.3 V and the maximum is VDD+0.3 V.The minimum VOUT1,VOUT2 to AGND is -0.3 V and the maximum is VDD+0.3 V.The VREF to AGND is ±25 W.The VRFB to AGND is ±25 W.The power dissipation (Platic) is 670 mW to +70 and derates above +70 by 8.3 mW/.The power dissipation (Cerdip) is 450 mW to +70 and derates above +70 by 6 mW/.The operating range is from -40 to +85 at commercial (J,K,GK versions),-40 to +85 at industrial (A,B,GB versions) and -55 to +125 at extended (S,T,GT version).The storage temperature is from -65 to +150.The lead temperature (soldering,10secs) is +300.