Hello JIGAR,
All Op Amps need a DC path for the input bias current to flow, and in your circuit that is through R5. Think of the input bias current as the Base current of a BJT PNP flowing out of both input pins. The fact the other side of R5 is grounded…
Hello Matsumoto-san,
I recommend you describe in more detail what you are trying to accomplish and either I or my colleagues might be in a better position to recommend something that might work.
So far I know that you need gain adjustment and that…
Hello,
Unfortunately I'm not familiar with what you are proposing as a work-around for the lack of IBIS model for the LMH6642. I've forwarded your question to people more familiar and if and when they respond, I'll post here.
Regards,
Hooman
Hello,
Regarding your question on LM98725 CLP mode Enable:
When enabled, Bit CLP mode closes the input clamp switch during the reference period of every pixel in the line.
It is similar to what is shown in Figure 10, but instead of being on during…
Hello Nagasawa-san,
If I understand your question correctly, you like to know the CMRR of the final stage of LMH6619-Q1 Figure 12 (Differential Cable Driver).
I've attached a document which should help with this computation assuming a certain resistor…
Hi Ken,
There is the THS4021 in DGN package that matches the THS4031 with much higher slew rate (470 V/us). But, the problem is that the minimum stable gain is 10 V/V or higher. I don't know the gain you are using! If your gain is lower, then to use…
Hello,
If you need to use the inverting configuration but want to boost the input impedance, may be you can use a NPN emitter follower in the front (if your sensor DC bias is around mid-rail or so), as shown below:
TINA-TI file:
LM7171 Single…
Hello,
I'm trying to jump into this discussion and see if I can offer any help, but I'm not entirely sure what the issues are?
If you still need some help, I recommend that you post your entire schematic along with specific notes of what the issues…
Hello,
Sorry about the delay in getting your question answered. I've contacted the person in charge to respond to you and since he is travelling, he'd get back to you within 48 hours from now.
Regards,
Hooman
Hi Ryuji,
Is the LMH6518 a possibility? From Figure 31 below, it looks like the typical variation over temperature is within 0.3dB total shift at a given x-axis (ladder attenuation). Over the entire gain range and over temperature, the typical variation…
