Thank you very much for the detailed answer Kirby. I appreciate that you included the links for the pspice model and the reference to LMP2021, the input current is carefully described there.
Yes, you are correct, the gain should be 134.
Here are a copule of things to check.
Check to make sure that you do not have any problems with input or output voltage ranges. The positive input of the LMP2021 should be within the CMVR of the op amp…
Hi there,
It is difficult to suggest a solution when the constraints are not known. But here is a suggestion. The circuit is based on the simple divider and a unity gain buffer. The divider scales down the input, while the 2.5V offset source assures…
Hello Paul, Thank you for your information. I confirmed the LMP2021 datasheet. It indicates the input--referred current noise "350fA/√Hz". I think that this current noise includes pulsating currents. Is it corrct? Thanks and Regards, Kuramochi
I have checked with Tina-TI spice model and with the OPA191.cir just attached in post.
Steps followed in according to sloa070.pdf.
In my circuit I am using LMP2021 and OPA191. I could model LMP2021 and simulate successfully.
where as when I am working…
Hello Paul Grohe
Thanks a lot for your reply. My doubts have been resolved :D. Now I know how works the rail-to-rail amps.
Your advise about LMP2021 which works as a Chopper surprise me. I don't see that information on the datasheet. Thanks for this…
Hooman,
Thank you for your reply!
I believe it would meet the needs.
I am really not worried at all about quiescent power - the order of power needed for the actuator in this project is thousands of times larger, which makes the power requirements…
Other Parts Discussed in Thread: LMP2021 Hi all,
Now, i need a driver amplifier for the precision reference voltage output. in my meter,there are four 2.5mA load and max load is 10mA on the same phase, but the load is constantly changing with change…
Other Parts Discussed in Thread: OPA188 , OP07 , LMP2021 , TLE2021A , OPA277 Team,
My customer has used the OP07 and LT1097 in an application. He is worried about EMI around the 1-2GHz region. He would like to compare from a reference point he knows…
Other Parts Discussed in Thread: LMP2011 , TINA-TI , LMP2021 Hi all,
Is there anybody who can help provide me the parameters of ' Input Common-Mode Voltage Range‘ under 5V supply voltage for LMP2011 ? When i simulation it with TINA-TI, Flat-top distortion…
