Questions tagged [differential]
Differential refers to any kind of signaling where the signal information is carried by two or more paths and both are required to properly reconstruct the signal. For example, USB D+ and D-
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M-LVDS differential signals through multiplexers
I'm experimenting with M-LVDS via USB 3.1 cables, passing the differential signals through the SuperSpeed lanes. I'm using the DS91M040 for driving M-LVDS. So far no issues, however, I need now to ...
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I would like to know what type of op-amp this circuit is
This circuit is connected to 250V AC power and I would like to calculate the values of the resistor and capacitor, but I don't know which formula to use to calculate it.
I think this circuit is ...
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Differentialy Fed Antenna Feeding Network
I need help with the feeding line for the following scenario. I have a dipole-like antenna for which I need balancing the input, see picture (dipole antenna used just for illustration; it does not ...
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Using Operation-Amplifier circuit to apply differential equation
$$ 6b(t)+\frac{8d}{dt}b(t)+\frac{10d^2}{dt^2}b(t)+\frac{4d^3}{dt^3}b(t)=12a(t) $$
I would like to implement this linear equation by using any type of op-amps. The solution will be the function b(t), ...
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Differential amplifier, calculation of differential and common gain
Maybe someone can help and knows how to calculate the differential gain and common-mode gain in a differential amplifier.
Will the formula for differential gain be Ad=Rc/2Re, i.e. in my case 50/40=1....
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Proof of half-circuit analysis of perfectly-balanced differential amplifiers
I have seen various approaches to the half-circuit analysis of perfectly-balanced differential amplifiers (see a particular example of a differential circuit at end if desired, but note that this ...
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Interfacing ratiometric sensor to precision differential ADC
Please consider following simplified schematic:
I'm currently in process of designing the analog interface for prototype heat pump driver/controller. It's job is to measure multiple analog inputs ...
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Why would a low-pass filter be connected to +5V on an RS422 differential line?
I am interested in a datasheet's schematic for my own PCB design of a similar system.
In my system, I am receiving an RS-422 differential line, and would simply be tempted to put a 100 Ohm terminating ...
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How to connect cable shield when receiver side powers signal source?
I have element 'A', the receiver, connected to earth, which powers modules 'B' and 'C', the signal sources, unconnected to earth. 'B' sends a differential line signal, and 'C' sends an analog signal. ...
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Why does the offset voltage have this polarity?
Consider the following from Chapter 3.5.6 of Analysis and Design of Analog Integrated Circuits by Gray, Hurst, Meyer, and Lewis:
As I ask about in a separate question, the authors claim that for some ...
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Why is an offset voltage and an offset current sufficient to represent mismatches in a differential amplifier?
Chapter 3.5.6 of Analysis and Design of Analog Integrated Circuits by Gray, Hurst, Meyer, and Lewis (GHLM) discusses the effect of device mismatches on the behavior of emitter- or source-coupled ...
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Low-Voltage Differential Signalling (LVDS) not working
I have updated the schematic and hopefully included all the suggestions.
The problem of the LED strip flickering is still there, however, I have noticed a slight improvement after altering the circuit ...
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How can I get a differential output as an input for another circuit on ADS?
I'm currently making a project on ADS for a differential pair oscilator:
The desired output for this circuit is Vout2-Vout1.Now, I want to plug a buffer on this circuit, but I don't know how to ...
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Is the voltage on the negative of a differential pair actually below the ground voltage used to generate the signals?
Apologies if it’s obvious but I always hear that differential pairs have a negative and positive waveform (one on each line) that’s opposite. Now I get that you could choose whatever value or point “...
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Low Side Bus One Shot
I'm confused on what exactly a one shot is and how to identify it on prints. For this example I know there is supposed to be a one shot on the low side of a 69 kV / 12 kV bus, but I'm not sure how ...
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