T thiam New Member Aug 26, 2009 #1 Hi, i need a guideline to construct a precision amplifier circuit to a motor driver(OPA 541). my input voltage is from -5V to 5V whic from PIC18F4331. Anyone can help me?? pls reply thanks.
Hi, i need a guideline to construct a precision amplifier circuit to a motor driver(OPA 541). my input voltage is from -5V to 5V whic from PIC18F4331. Anyone can help me?? pls reply thanks.
B bountyhunter Well-Known Member Aug 26, 2009 #2 You would need to specify a whole lot more than that to come up with a circuit. "Precision" means what? What are you trying to do exactly?
You would need to specify a whole lot more than that to come up with a circuit. "Precision" means what? What are you trying to do exactly?
T thiam New Member Aug 29, 2009 #3 Since i using PIC18F4331, i have been told that its output current is not constant. as i know, a precision amplifier can constant the current. i have question about the PIC18F4331 Do the chip have 5 to -5 output? i mean the chip have negative output signal?
Since i using PIC18F4331, i have been told that its output current is not constant. as i know, a precision amplifier can constant the current. i have question about the PIC18F4331 Do the chip have 5 to -5 output? i mean the chip have negative output signal?
Nigel Goodwin Super Moderator Most Helpful Member Aug 29, 2009 #4 thiam said: Since i using PIC18F4331, i have been told that its output current is not constant. as i know, a precision amplifier can constant the current. Click to expand... You're still making no sense at all - tell us EXACTLY what you want to do, not how you imagine it needs to be done. i have question about the PIC18F4331 Do the chip have 5 to -5 output? i mean the chip have negative output signal? Click to expand... As it's only fed from a +ve 5V supply, obviously not.
thiam said: Since i using PIC18F4331, i have been told that its output current is not constant. as i know, a precision amplifier can constant the current. Click to expand... You're still making no sense at all - tell us EXACTLY what you want to do, not how you imagine it needs to be done. i have question about the PIC18F4331 Do the chip have 5 to -5 output? i mean the chip have negative output signal? Click to expand... As it's only fed from a +ve 5V supply, obviously not.