This thread has been locked.
If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.
BUF602: BUF602 as capacitive gate load driver?
Part Number: BUF602
Does anybody know the output overdrive recovery time of a buf602?
This is a case where its input might go to the negative rail (gnd for single supply), and the output can't reach the rail. What then is the recovery time?
It's not quite the same, I admit, as output overdrive recovery for a regular op amp, where input voltage times gain theoretically puts the output beyond the rails--we're always at unity gain for the 602 obviously.
Good question, not sure why I did not put that in the datasheet, normally would do that for an op amp,
Anyway, it does say it needs a 1.3V output headroom - but, if your are going to 0V input on single supply input, that input stage is saturated also and may dominate recovery time - we did not try to sort out input vs output range - perhaps on oversight.
I would try it on the bench
1. should be ok, but you may need a fault limit input current limiting R (too high there will hurt BW and noise).
2. your output loading might influence recovery time,
We never spec worst case overdrive recovery as it depends on the minority carrier lifetime in saturated junctions - not usually toleranced in a PDK. It is often not modeled either, so bench is best then guardband at lest 1.5X.
We are glad that we were able to resolve this issue, and will now proceed to close this thread.
If you have further questions related to this thread, you may click "Ask a related question" below. The newly created question will be automatically linked to this question.
All content and materials on this site are provided "as is". TI and its respective suppliers and providers of content make no representations about the suitability of these materials for any purpose and disclaim all warranties and conditions with regard to these materials, including but not limited to all implied warranties and conditions of merchantability, fitness for a particular purpose, title and non-infringement of any third party intellectual property right. No license, either express or implied, by estoppel or otherwise, is granted by TI. Use of the information on this site may require a license from a third party, or a license from TI.
TI is a global semiconductor design and manufacturing company. Innovate with 100,000+ analog ICs andembedded processors, along with software, tools and the industry’s largest sales/support staff.