AD5663RBRMZ: What is conversion rate/Sampling rate of the DAC? it is not available in datasheet.

Question

What is conversion rate/Sampling rate of the DAC? it is not available in datasheet. Due to supply issue we are looking for the alternate component with the same specifications. Please suggest.

iandal · Accepted Answer

Hi, 
 The fastest digital update rate varies per DAC device, it is equivalent to the time it takes to complete a single write sequence. In the case of AD5663, a single write sequence is equal to t8 +t4 + 23xt1 +t7 ~= 500ns or 2MUPS (updates per second). However, we need to factor in the settling time of the output. It takes a maximum of 7us for a 1/4 to 3/4 scale output change with +/-2 LSB accuracy. This can be found on datasheet table 3. 
 Other alternatives to the AD5663, 0 to 5V capable output, SPI, 2 channels and above, see this table. My recommendation is the AD5676R which comes in a 2.5mm2 WLCSP package. 
 For additional information on pricing or product availability, we recommend contacting your FAE or local ADI salesperson. 
 Contact details for your local ADI salesperson are available via the following page on the Analog Devices website: Sales and Distribution | Analog Devices 
 Regards, 
 ~ian

iandal · Answer

Hi, 
 I couldn't find a pin and pkg compatible replacement for the AD5663. Have you talked with our sales and distribution guys regarding supply concerns? you could also consider the other devices in the family, if not critical in your application, we have a 14-bit AD5643 and 12-bit AD5623 with A and B grade variants. 
 Regards, 
 ~Ian

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AD5663RBRMZ: What is conversion rate/Sampling rate of the DAC? it is not available in datasheet.

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