GENERAL DESCRIPTION
The AD5533 combines a 32-channel voltage translation function with an infinite output hold capability. An analog input voltage on the common input pin, VIN, is sampled and its digital representation transferred to a chosen DAC Register. VOUT for this DAC is then updated to reflect the new contents of the DAC register. Channel selection is accomplished via the parallel address inputs A0–A4 or via the serial input port. The output voltage range is determined by the offset voltage at the OFFS_IN pin and the gain of the output amplifier. It is restricted to a range from VSS + 2 V to VDD – 2 V because of the headroom of the output amplifier.

FEATURES
   Infinite Sample-and-Hold Capability to ±0.018% Accuracy
   High Integration:
      32-Channel DAC in 12 mm  12 mm CSPBGA
   Per Channel Acquisition Time of 16 μs Max
   Adjustable Voltage Output Range
   Output Impedance 0.5 Ω
   Output Voltage Span 10 V
   Readback Capability
   DSP/Microcontroller Compatible Serial Interface
   Parallel Interface
   Temperature Range –40°C to +85°C

APPLICATIONS
   Optical Networks
   Automatic Test Equipment
   Level Setting
   Instrumentation
   Industrial Control Systems
   Data Acquisition
   Low Cost I/O