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1Quick Start
1.) Order Boards
- Gerber files provided at Gerbers(June.4.2024).zip in project files
- Personally used JLC for board FAB
2.) Order parts
- Here's a Digikey cart full of all the parts for 1x board https://www.digikey.ca/short/78j21jr0
- Consider using a different shunt resistor (labeled R3 in the digikey Cart)
- Output swing is primarily limited by the supply rails... depending on the shunt resistance we'll hit the rails faster
- Max input current = (Vcc_min/2)/(50 * Rshunt) = (4.5V/2)/(50*Rshunt) = 0.045/Rshunt [A]
3.) Solder the board
- See IBOM in project files
4.) Clean the board and LET IT DRY
- Any residue left on the board DOES lead to "fun" analog goodness
5.) Connect a 9V battery and start measuring... use the following process
- a) PWR the device
- b) Set the CSA gain + bandwidth
- c) Correct the DC offset
- d) MEASURE
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