AD5373

www.DataSheet4U.com Preliminary Technical Data FEATURES 32-channel DAC in 56-LFCSP and 64-LQFP AD5372 Guaranteed monotonic to 16 bits AD5373 Guaranteed monotonic to 14 bits Maximum output voltage span of 4 × VREF (20 V) Nominal output voltage range of -4 V to +8 V Multiple, independent output spans available System calibration function allowing user-programmable offset and gain Channel grouping and addressing features Thermal Monitoring Function DSP/microcontroller-compatible serial interface 2.5 V to 5.5 V JEDEC-compliant digital levels DVCC VDD VSS 32-Channel, 16/14, Serial Input, Voltage-Output DACs AD5372/AD5373 Power-on reset Digital reset (RESET) Clear function to user-defined SIGGND (CLR pin) Simultaneous update of DAC outputs (LDAC pin) APPLICATIONS Level setting in automatic test equipment (ATE) Variable optical attenuators (VOA) Optical switches Industrial control systems Instrumentation FUNCTIONAL BLOCK DIAGRAM AGND DNGD LDAC VREF0 14 TO MUX 2's n A/B MUX X2A REGISTER X2B REGISTER MUX n 2 n OFS0 REGISTER n DAC 0 REGISTER OFFSET DAC 0 BUFFER DAC 0 OUTPUT BUFFER AND POWER DOWN CONTROL BUFFER GROUP 0 CONTROL REGISTER n 8 n n n n = 16 FOR AD5372 n = 14 FOR AD5373 A/B SELECT REGISTER X1 REGISTER n M REGISTER C REGISTER n 8 n VOUT0 VOUT1 VOUT2 VOUT3 VOUT4 VOUT5 VOUT6 VOUT7 SIGGND0 · · · · · · SYNC SDI SCLK SDO BUSY SERIAL INTERFACE n n n n n · · · · · · n · · · · · · n · · · · · · A/B MUX · · · · · · X2A REGISTER X2B REGISTER X1 REGISTER M REGISTER C RE...