Hello, I am a student who is using AD630 to build a Lock-in Amplifier. I would like to ask whether AD630 can be supplied with +/-5V? While in the datasheet there is no information about it.
Yes. The d.s. says supply voltage range is +/-5V to +/-16.5V.
But look at the Vin operational line: You would have an input range of -1V to 4V.
Did you look at the ADA2200??
Hello Harry, Thank you for your answer!
I have also looked the datasheet of ADA2200 before but its supply voltage is too low: it is only 3.3V single supply. However the signal can reach +/-2.5V. So I decided to take AD630.
So when the Input Voltage is +/-2.5V I should take a supply voltage more than +/-6.5V. What a pity!
You can process at a low level, and add an op amp running a higher voltages to take a gain of 3, 5, 10, or whatever you want.
Yes you are right. I will follow your advice and decide to lower the gain of the pre-amplifier so that I wont get the signal so high.
Thank you for your advice!
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