Part Number: OPA875 Hello : )
I was wondering about the enable feature of the OPA875. From the data sheet it is not clear to me quite how things behave when the mux is disabled. Can I assume that the opamp output is HiZ and that there is an 804 Ohm pull…
Hi Sima:
Thank you for your reply
Finally, I tried to get the OPA875 working using dual power.
1. Use buck dc to dc to separate positive and negative 5V for OPA875.
2. Use a Zener diode to make pin 2 GND of OPA875 form a floating. ground
Best Regards…
Part Number: OPA875 Hello,
I am looking for the thermal metrics for the PN:OPA875, as they were not listed on the datasheet.
I am looking for Thermal resistances of junction to case (theta JC) and junction to board (Theta JB), as well as a max rated junction…
Part Number: OPA875 I am looking for some help finding a replacement for the AD 8015 (See attached spec sheet. The AD8015 is a very old die and the company I work for would like to move away from it before it goes into end of life. The ideal replacement…
Part Number: LMH6570 Other Parts Discussed in Thread: OPA875 , OPA4872 Hello,
I am looking for the spice model for the LMH6570.
Any body has it?
Regards,
Giora
Well Paul,
You may say this has worked before, but this "wired-or" mux application is not actually supported by standard CFA op amps. Ran into lots of problems with this over the years, and now you have too.
Couple of options we did in the product…
No you can't shunt off signal with a resistor, at DC the input impedance is <1ohm.
It just sound like you have a lot of dynamic range to deal with. one way to do that is make say 2parallel different fixed gain Zt stages, and then feed those into…
Other Parts Discussed in Thread: OPA875 , LMH6570 Hi,
In our design we have two CBVS/PAL Input coming from cameras and we are processing only one Video signal at a time .I need an analog video mux Ic . is OPA875 suitable for this purpose ? any suggestion…
