Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.
Thank you for answers! I have tried to bias the current-to-voltage op amps with half of the supply voltage, but I get unexpected behavior. I tried simulating it as well and same behavior there (ofcourse..) so I am doing something wrong. I have not biased the first op amp. (U1) and maybe I...
I am trying to excite with a 2V voltage over a 1k resistor and then feed this current into a current-to-voltage converter with a 1k resistor in the feedback loop. This seems to not work as I expect. I am powering the op. amps. with single supply voltage. Maybe the current flowing from the output...
In the datasheet of the AD8333 is says that the minimum square wave "LO Frequency Range" is 10 kHz. Does this mean that it needs a minimum 10 kHz square wave to be able to do the IQ demodulation? So if I were to use a 1 kHz signal to be mixed (which is supported, DC to 50MHz) I would have to...
Hello!
I want to measure an unknown impedance using an I/Q demodulator.
Setup:
I was thinking of using a DDS (Direct Digital Synthesizer) as the sine wave signal generator. Splitting this signal to a reference signal and an excitation signal. The reference signal will go directly to the LO...
Hello.
To give some more information on what I am to use this for: I have two signals. Both are periodic sine waves with the same frequency, but with a constant phase difference. Let's call one of the signals for ref (reference) and the other sig (signal). They can look like this:
ref(t) =...
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.
