Difference between revisions of "POT4a"
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==revisions from POT4== | ==revisions from POT4== | ||
| + | *add 5pin, 1.25mm header for strain gague | ||
*removed unused input resistors and capacitors | *removed unused input resistors and capacitors | ||
*On POT4 a 1meg resistor was stacked on CC3 - this resistor added to SCH and PCB | *On POT4 a 1meg resistor was stacked on CC3 - this resistor added to SCH and PCB | ||
*removed 4th order filter, changed 3way jumper to 2way | *removed 4th order filter, changed 3way jumper to 2way | ||
*2nd order filter is now NON-Inverting | *2nd order filter is now NON-Inverting | ||
| − | *unused opamp OPTIONALLY used to drive input cable shield | + | *unused opamp OPTIONALLY used to drive input cable shield with input single |
| − | + | *changed PCB pattern for output driver caps to CAP200-SQ (acurately represents compoent shape) | |
*changed 0805 output cable CAP to 1206. Panasonic X5R series @ 25V 1uf to 10uF! | *changed 0805 output cable CAP to 1206. Panasonic X5R series @ 25V 1uf to 10uF! | ||
| − | + | *added 10 turn POT for variable gain (optional) | |
| − | * | + | *remove output driver inline resistors? |
Revision as of 11:57, 15 June 2005
revisions from POT4
- add 5pin, 1.25mm header for strain gague
- removed unused input resistors and capacitors
- On POT4 a 1meg resistor was stacked on CC3 - this resistor added to SCH and PCB
- removed 4th order filter, changed 3way jumper to 2way
- 2nd order filter is now NON-Inverting
- unused opamp OPTIONALLY used to drive input cable shield with input single
- changed PCB pattern for output driver caps to CAP200-SQ (acurately represents compoent shape)
- changed 0805 output cable CAP to 1206. Panasonic X5R series @ 25V 1uf to 10uF!
- added 10 turn POT for variable gain (optional)
- remove output driver inline resistors?
