Dear Support, Designers,
I am not so familiar with Opamps, but I would like to combine the following circuits with each other. and would greatly appreciate the help I can get in designing this. I have red some theories about opamps, books like opamps for everyone, simulated with Qucs and I aint getting the results I expected using the program, I tried configurations with Differential and selfbuild Operational amplifiers but to no avail, you are probably familiar with this.
Information
What I do know is that the input and the output are connected to a 50 Ohm BNC cable.
0.15V TTL input unipolar and like to amplify it towards maximum 5V with an Potentiometer, and should have a variable offset also connected with a potentiometer.
Configuration(required)
AC to DC Adapter 12V 400mA
LTC3265 Voltage Pump for stable 15+-V
Low pass filter 6 order, gain, offset, voltage follower.
5x TLV074 for the opamps
Question:
is the configuration in correct order? filter, gain, offset, voltage follower?
I havent found that much on google about this.
Does the configuration of the opamps need to be all inverted due to negative feedback?
what do I need to keep in mind? as in where to start with, and the steps to follow?
is there a general rule for configurations like this?
as a last thought, is it advisable to place extra ELKO's between the 15+- to common? to prevent disturbances from common mode?
sincerely yours
Bastiaan
I am not so familiar with Opamps, but I would like to combine the following circuits with each other. and would greatly appreciate the help I can get in designing this. I have red some theories about opamps, books like opamps for everyone, simulated with Qucs and I aint getting the results I expected using the program, I tried configurations with Differential and selfbuild Operational amplifiers but to no avail, you are probably familiar with this.
Information
What I do know is that the input and the output are connected to a 50 Ohm BNC cable.
0.15V TTL input unipolar and like to amplify it towards maximum 5V with an Potentiometer, and should have a variable offset also connected with a potentiometer.
Configuration(required)
AC to DC Adapter 12V 400mA
LTC3265 Voltage Pump for stable 15+-V
Low pass filter 6 order, gain, offset, voltage follower.
5x TLV074 for the opamps
Question:
is the configuration in correct order? filter, gain, offset, voltage follower?
I havent found that much on google about this.
Does the configuration of the opamps need to be all inverted due to negative feedback?
what do I need to keep in mind? as in where to start with, and the steps to follow?
is there a general rule for configurations like this?
as a last thought, is it advisable to place extra ELKO's between the 15+- to common? to prevent disturbances from common mode?
sincerely yours
Bastiaan