Draw the Differential Sense Amplifier and explain its working. Any idea how to size this circuit? (Consider Channel Length Modulation)
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Answer Posted / Chandrakant Mani Pathak
Drawing a diagram would not be possible within this format. However, here's an explanation:nnA differential sense amplifier is used for sensing small voltage differences in a differential signal. It consists of two identical transistors connected back-to-back. When the input voltage is zero, both transistors have equal current flowing through them, which cancels out and the output voltage is high impedance. When an imbalance in input voltage occurs, one transistor conducts more than the other, creating a net current flow and output voltage changes.nnAs for sizing the circuit, consider Channel Length Modulation (CLM). CLM occurs when the channel length varies due to high current density. This can be managed by using proper layout design rules and ensuring equal current distribution among transistors.
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