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Does the ADA4932 /PD pin function as the /Disable pin in ADA4899?

Question asked by Z.Yang on May 22, 2013
Latest reply on May 23, 2013 by Z.Yang

Hi,

 

I'm trying to build a single-ended to differential ADC driver for AD7626 with ADA4932. I would like to connect the outputs of two differential amps together and use the /PD pins as the MUX control, however I only found little information in the datasheet about the power-down mode. I would really appreciate it if someone could help me to identify the following questions:

 

1. Is the output in high impedance in the power-down mode as ADA4899?

2. The turn-off time is way longer than the turn-on time (1100 ns VS 16 ns), if the two amps are switched at the same time, will one output still be able to shutdown while the other output is already on?

3. The input of the power-down amp will remain active (0 to 4V), will that cause any leakage to the output?

 

Thanks for your help!

Yang

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