Hello,
At 3.3 V single power supply the gain-bandwidth product GBP (RL > 100 kOhm) simulates as approximately 483 kHz. This is higher than the typical GBP at 5 V. Can someone comment? Can someone provide the tolerance in this GBP?
Thanks,
Marcelo
AD8603
Production
The AD8603/AD8607/AD8609 are single/dual/quad micro-power rail-to-rail input and output amplifiers, respectively, that feature very low offset voltage...
Datasheet
AD8603 on Analog.com
Hello,
At 3.3 V single power supply the gain-bandwidth product GBP (RL > 100 kOhm) simulates as approximately 483 kHz. This is higher than the typical GBP at 5 V. Can someone comment? Can someone provide the tolerance in this GBP?
Thanks,
Marcelo
And in one part I measured it was more like 722 kHz.
Hi marcelobaru ,
May I know how you measure the AD8603's GBP?
I won't be able to guarantee the min and max of AD8603's GBP.
But may we know the application and desired configuration (Gain, Bandwidth, etc.) for the AD8603? We may be able to help out further if we have this information.
Thank you.
Best Regards,
Dann
Hi Dann,
I measured in follower configuration with a common mode input voltage at 1.65 V and a power supply of 3.3 V.
Best,
Marcelo
Hi marcelobaru ,
Are you using an evaluation board on your test?
How accurate or clean is the common mode voltage, the amplitude, Rload, etc?
Need to know all the possible contributions to these difference in results you're getting because checking an old repository.
Looking at no Load condition, I haven't seen GBP exceed 450kHz and drop below 380kHz. but this is still a typical value and not guaranteed to be the min or max for the GBP spec. What's your target bandwidth if I may ask? thank you
Best Regards,
Dann
Hi,
Assumed answered offline so I am closing this thread. Thank you!
Regards,
Mae