FAQ

• ### RE: AD8564 SPICE model

I came across the same problem. I want to operate the AD8564 with considerably higher V+ANA than V+DIG.

### Q

I want to use the fast Comparator AD8564 for my Design. In the datasheet is the
parameter Vcm  declared. The Voltage Range is limited to +2.75V. But the
absolute maximum range of the anlaog input channel is much higher (+/-7V).
Has the…
• ### Absolute supply voltage between Analog positive supply and Digital positive supply in AD8564

Hi

Below is absolute voltage table in AD8564 D/S.

I would like to confirm the red marker specification.

It means that V+ana-600mV＜V+DIG is correct operation, doesn't it?

(Can we supply V+DIG=17V if V+ana is 5V? or Can't we supply V+DIG=3.3V if…

Hello,

I have my AD8564 set up with Vana+ = 8V, Vana- = -5V, and Vdig = 3.3V. With that set up, what is the voltage level of AD8564 outputs? Will the outputs have 3.3V logic level? The datasheet does not show Vdig = 3.3V.

Thanks,

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Thank you,

Hello,

In the datasheet of AD8564, there is the following descriptions. An analog power supply voltage describes 14V.

The input voltage describes ±7V.

Is the input voltage ±7V related…

Hello,

Q1:

Can this IC use an analog power-supply voltage for an actual operation voltage by the maximum rating of V+ANA=14V and V-ANA=0V?

Q2:

When using it with V+ANA=12V, can V+dig of this IC be used by +12V…