Part Details
  • Infinite Sample-and-Hold Capability to ±0.018% Accuracy
  • High Integration: 32-Channel DAC in 12 x 12 mm CSPBGA
  • Per Channel Acquisition Time of 16 µs Max
  • Adjustable Voltage Output Range
  • Output Impedence 0.5 O
  • Output Voltage Span 10 V
  • Readback Capability
  • DSP/Microcontroller Compatible Serial Interface
  • Parallel Interface
  • Temperature Range
  • -40°C to +85°C
Additional Details
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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+2V to VDD-2V because of the headroom of the output amplifier.

The device is operated with AVCC = +5V±5%, DVCC= 2.7V to 5.25V, VSS = –4.75V to –16.5V and VDD= 8V to 16.5V and requires a stable +3V reference on REF_IN as well as an offset voltage on OFFS_IN. It is available in a 74-lead 12mm x 12mm LFBGA package.

Also see the AD5532. It is similar to the AD5533 as it is specified in the infinite sample and hold mode of operation, but it has an additional 32-channel, voltage-output 14-bit DAC.

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