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8 Threads found on edaboard.com: Cross Differential Pair
You could use a cross coupled pair for amplification like a strongARM latch.
what are the benefits of using differential pair cross coupled oscillator or back to back connected oscillator?
1. As the input voltage changes, the voltage at source node of m5 starts to change. If the ouput impedance of current source is low, then current of m5 will change and therefore vb will change. Also, here is preferred to connect the bulk of m5 to it's source to get rid of nonlinearity of vth as z function of vin. For this you isolated p-well for m
Hi, I am just a beginner in layout field. I want to make layout of a differential pair by Common centroid cross-coupled approach. Each of the two transistors have 4 figures. which one of the following is best: ABAB BABA or ABBA BAAB or ABBA ABBA Thnx
Theoretically, yes, if the input stages gets saturated by DC, then the whole mechanism collapse. In practice, comparator are not totally the same as opamp in that we often add differential type cross-coupled latch stage before digital output buffer. And even in cases where input differential pair is not really in linear (...)
You can use a differential cross coupled pair, i.e 2 transistors with their sources connected together and biased with same current source and the drain of each transistor connected to the base of the other one. You can refer to "RF microelectronics" by Razavi, the oscillators chapter for more details.
i think always everyone design the VCO to be differential , coz it will be integrated thus the differential signals will be ok , the cross coupled pair is very easy khouly
Hi, This is fairly standard. 1) The routes should be as close as possible. ( cross talk is not a issue. Common mode interference is desired. ) 2) At higher frequencies the difference in length matters. 3) Impedance should be properly matched. BRMadhukar