From the ADI data sheet: 110 MHz gain
bandwidth (G = 1000)
8 MHz bandwidth (G = 10)
On 2025-02-25 17:22, Andy I via
groups.io wrote:
On Tue, Feb 25, 2025 at 03:06 AM, john23 wrote:
Hello
, is there an alternative I could use for AD797 , LTspice
model will be best.
Have you tried the product selection guides, which most IC
vendors and many distributors offer on their websites?
The
model I got is very bad and its oscilating for no good
reason.
There probably is a reason.? It might be worth investigating
why.? High-bandwidth amps are more susceptible.? Maybe your
circuit into which you plugged the AD797 was the cause.
Gain
bandwidth: 100 MHz
-3
dB bandwidth: 8 MHz
Certainly that figure requires qualifications.? I know of no
op-amps that would have an 8 MHz open-loop -3dB bandwidth.? So
it is likely a closed-loop measure - and? then, at what
closed-loop gain is that measured?? It makes all the difference
in the world.
?
Andy
?
?
--
OOO - Own Opinions only
If something is true:
* as far as we know - it's science
*for certain - it's mathematics
*unquestionably - it's religion
John Woodgate