Our customer simulate AD8646 with OrCad.
The schematic is voltage follower.
The result is strange?? The gain waveform turns the other way from 150MHz.
Is this the AD8646 performance or spice model bug or wrong simulation?
Should we ignore…
i am using AD8646 for voltage follower as illustrated in following schematic. the output of AD8646 shall be connected to 12Bit ADC for voltage measurement UDC (range 0 to 820V). The supply of AD8646 is V2 (4,5V), which can be manually turned off…
Customer would like to know how much variation slew rate AD8646 has. (by Process/Temperature.)
in the data sheet, typ=11V/usec @RL=2kohm.
They would like to know slower case because they are considering to use AD8646 high speed application and Vs…
We are now studying to replace LMV84x on existing system by AD8646 or AD8648, then having questions as follows.
1) Absolute Maximum Ratings of input voltage at AD8646/8648 is defined as "GND to Vsy".
I could not find any clear definition…
You could look at using something like the AD8646. The specs are fairly similar, but it is higher quiescent current, meaning it wont be as low power for the entire solution. It does come in a SOIC package.
We discovered a problem in a data sheet of AD8646.
Figure 39 "Maximum Output Swing vs. Frequency" of Page12.
In this graph, center frequency is 1kHz…
The data sheet says "featuring... low current noise" and then never says what it is. Also, "featuring... low input voltage" should probably read "featuring... low input voltage noise."
Thank you for your reply.
The situation has been changed. customer is considering to use other device "AD8646" for their application now.
So could you close this question?
For your information, their application is low side…