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Output level of common-source amplifier with PMOS load

Stating why the open loop circuit does not have a well defined bias voltage at the output in my own way: the open loop circuit has a poorly defined output voltage because the output impedance is very ...
• 1,379

How to calculate the voltage gain of a circuit with P-MOS and N-MOS transistors?

There are two inverting stages. Ignoring rds, the gain of each stage is determined by gm times drain load. The load in the 1st stage is a diode connected PMOS. First stage gain is Av1 = - gm1 * 1/gm2 ...
• 826

How to calculate the voltage gain of a circuit with P-MOS and N-MOS transistors?

See M2 & M3 form a current mirror -- M3's current is equal to M2. M2's current is equal to M1. For your (homework ?) answer, be sure to include the polarity (+ or -) of the gain.
• 19.8k

PMOS switch for protection

a PMOS turns on when Vgs<Vth The definition of "turn-on" in the data sheet is usually something like 1-10μA of channel current. That's pretty far away from what is considered a turn-on ...
1 vote

PMOS switch for protection

In these types of circuits, the MOSFET is "backwards" with respect to the source and drain so you have conduction through the body diode but also a low-resistance path around the body diode ...
• 21.4k