Mar 17, 2016 #1 S shanmei Advanced Member level 1 Joined Jul 26, 2006 Messages 430 Helped 8 Reputation 16 Reaction score 8 Trophy points 1,298 Location USA Activity points 4,496 This circuit realize the output current: IR=Vs/R, but it needs two opamps to achieve. In my design, I can't use opamp, anyone has idea to get IR=(Vref-Vin)/R=Vs/R? Thanks
This circuit realize the output current: IR=Vs/R, but it needs two opamps to achieve. In my design, I can't use opamp, anyone has idea to get IR=(Vref-Vin)/R=Vs/R? Thanks
Mar 17, 2016 #2 KlausST Advanced Member level 7 Joined Apr 17, 2014 Messages 25,170 Helped 4,868 Reputation 9,757 Reaction score 5,540 Trophy points 1,393 Activity points 168,412 Hi, A bit of information, please. What voltage range, what current range, what supply voltage, wgat supply current available, frequency.... Klaus
Hi, A bit of information, please. What voltage range, what current range, what supply voltage, wgat supply current available, frequency.... Klaus
Mar 17, 2016 #3 S shanmei Advanced Member level 1 Joined Jul 26, 2006 Messages 430 Helped 8 Reputation 16 Reaction score 8 Trophy points 1,298 Location USA Activity points 4,496 For example, Vdd=1.8V, input voltage range as large as possible, 0.5-1.3 input voltage range is okay. current 5u-300uA, frequency minimal is 10MHz. Thanks.
For example, Vdd=1.8V, input voltage range as large as possible, 0.5-1.3 input voltage range is okay. current 5u-300uA, frequency minimal is 10MHz. Thanks.