Hello,
I've been assigned a project to design a charge amplifier who's LTSPICE circuit schematic has been shown in the attachment.
So basically in here for 100Mohm resistor, I have two 50ohm SMD resistors connected in series and 1nF capacitor is a ceramic one. The i/p capacitor and the i/p supply voltage is actually a representation for a piezo sensor.
The +-9V supply is being provided by two 9V batteries (the cap set up helps virtual ground).
So basically I have implemented it using breadboard but I need to design a PCB but truly speaking, I have no idea about how to design. I should be using eagle software and i cannot change the components since my college is providing them.
And the major doubt I have is as to how Im supposed to do the virtual ground of the batteries in the PCB layout.
Also I want to know how my sensor (which has its two terminals wired) and the output (basically Im supposed its to be a BNC-BNC cable as I need to connect it to an oscilloscope/DAC) will be connected with the PCB
Please help me out.
Thank You
I've been assigned a project to design a charge amplifier who's LTSPICE circuit schematic has been shown in the attachment.
So basically in here for 100Mohm resistor, I have two 50ohm SMD resistors connected in series and 1nF capacitor is a ceramic one. The i/p capacitor and the i/p supply voltage is actually a representation for a piezo sensor.
The +-9V supply is being provided by two 9V batteries (the cap set up helps virtual ground).
So basically I have implemented it using breadboard but I need to design a PCB but truly speaking, I have no idea about how to design. I should be using eagle software and i cannot change the components since my college is providing them.
And the major doubt I have is as to how Im supposed to do the virtual ground of the batteries in the PCB layout.
Also I want to know how my sensor (which has its two terminals wired) and the output (basically Im supposed its to be a BNC-BNC cable as I need to connect it to an oscilloscope/DAC) will be connected with the PCB
Please help me out.
Thank You