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AD5721 Clear Signal

Thread Summary

The user asked about the behavior of the DAC output when a new value is loaded during an active (low) CLEAR signal. The final answer clarifies that the CLEAR signal is falling edge active and while it is low, any new code sent will not be loaded. The default clear code after power up or hardware reset is configurable via the control register, with options for zero-scale, midscale, or full-scale.
AI Generated Content
Category: Hardware
Product Number: AD5721

Hello,

a falling edge at the CLEAR input sets the DAC register to zero-scale, midscale, or full-scale code (user selectable) and updates the DAC output. The output remains at the clear value when the CLEAR signal is returned high.

What happens when a new value is loaded into the DAC register during active (low) CLEAR Signal? Remains the output at the clear value or is the output updated to the new value? Is the CLEAR signal falling edge active or

low active?

Many thanks in advance.

Alexander