Dear Sirs,
I’m trying to make V-I convertor using LM675 power-OPAMP looking for about 50 mA AC output.
I have tried few circuits to create but any of them won’t work.
This time, I’ve made exactly the same circuit as high current source diagram on datasheet, but won’t gave current as written. (Give 0.5mA when input is 1V)
Supply Voltage is ±18V form constant voltage supplier.
Input Voltage is 400mV~1V form Lock in Amplifier.
So, I ‘d like to ask;
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Is this circuit not works for AC?
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Does supply voltage affect output current? (Should I supply ±30V to get more current)
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Is there any easier way to create V-I convertor using LM675 which output over 50mA? (Or, should I make amplifier circuit to enhance the output.)
May be, because my English, it is difficult to understand the question, but I’ll try my best to give additional information. So, please help me to make V-I convertor.
Rigards,
Yuki
