AD7546

0 B${) ~lrL ~ ANALOG W DEVICES CMOS16-Bit VoltageOut DAC* I AD7546 I FEATURES AD7546 FUNCTIONAL BLOCK DIAGRAM Monotonic to 16 Bits Over Temperature On-Chip Deglitch Switch Unipolar and Bipolar Operation Microprocessor Compatible TIl/CMOS Compatible latched Inputs Voltage Output (Constant Output Impedance) VA'" low Cost RI low Power Consumption: 50mW typ RI OBS IIGENERAL DESCRIPTION OThe AD7546 is a 16-bit voltage-output DAC with input data latches for interfacing to 16-bit microprocessors. It uses a Lnovel design consisting of a 12-bit R-2R DAC, operated in the Evoltage switching mode, which is supplied with a reference voltage from a 4-bit segment DAC under the control of the TEfour most significant bits. A monolithic CMOS device. the VOUT AD7546 offers outstanding differential nonlinearity specifica- R2 (35: tions and monotonicity from 14 to 16 bits. An on-chip deglitch switch which is synchronized with the latch loading signal is provided for use with track/hold c...