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First, sorry for the bad english.
It's not the first time I've been looking for help on this circuit on the forum.
I'm from Brazil, I'm doing a university project using which basically consists of using a colpitts oscillator with differential pair, with a SAW sensor in its feedback loop. The SAW...
First, sorry for my bad english.
I'm building a project using a Colpitts Oscillator with Differential Pair, designed for ~117.6MHz. I'm using LTspice for simulation. The oscillator individually oscillates, but I need it to oscillate when I add a sensor model (as seen in the image in the...
Hello!
I have done calculations for designing a differential amplifier (DA) with differential output. I simulate (using cadence ) the DA with the calculated values and perform the DC analysis of the circuit to inquire all the transistors are operating in saturation. However, I did not get all...
Hello everyone,
I am designing LPF based differential demodulator(LPF_DDM) to retrieve differentially modulated signals, which are on-chip capacitive isolated [shown]. LPF_DDM includes a differential amplifier, LPF, and Schmitt trigger. I designed a two-stage opamp [specification below], as a...
hello!
I was wondering if anyone could take a look at my circuit for my second version of my "precision" current sensor, specifically the analog section. (TL/DR Last Paragraph). my first version, discussed , was a overall failure, although I did learn quite Abit from that so it wasn't a total...
Can I use a differential amplifier to shift the voltage level of my AC signal? Because its formula is Vout=V2-V1 . I have a negative AC signal input for my op amps negative terminal or V1 is negative. My V2 will have a DC input of 2V.
Also, another guy is telling me that because V2 is...
Hello Sir,
I am interested to one circuit that can measure resistance value.
Take a look the schematics, I need to review it and understand whole circuit.
Let me explain it little bit,
1. Seems like a constant current source has been configured using U1A. Like other simple circuits, a...
Hi there, I could use a hand getting my head around a design for a single ended signal to differential input&output amplifier.
I'm using an AC current sensor (LTSR-6NP, **broken link removed**) which gives a single ended voltage output referenced to ground with the zero current point at mid...
In my quest to design my own an audio power amplifier, I'm trying to fully understand how to design a proper BJT differential amplifier.
I faced two apparently easy questions I cannot answer by myself, even after some hours of thinking about it.
First is about long-tailed pair using resistive...
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