The difference between P and PA types of PMOS transistors

[vongy]

i do not know how does it work , can it equal to two inverter in series?

 

[Fom]

Re: How does it work?

There is two kind of PMOS transistors P and PA. Do you know the difference?

 

[sparso]

Re: How does it work?

There is two kind of PMOS transistors P and PA. Do you know the difference?

Well I don't but would like to know. What is PA?

 

[DZC]

Re: How does it work?

There is two kind of PMOS transistors P and PA. Do you know the difference?

Pa seems a depletion MOS device.

 

[vongy]

Re: How does it work?

There is two kind of PMOS transistors P and PA. Do you know the difference?

Pa seems a depletion MOS device.

yes,but it is not pa , it is pd ,it is a depletion MOS device.
i think it can equal to a resistance and this circuit is a buffer?

 

[Btrend]

Re: How does it work?

if this schematic is correct, then I think it is like a (sensor + pre-amp+ amp ) ckt.
maybe the left part is a CMOS sensor, the pre-amp will amplify that sensor signal, then the inverter (amp or comparator) make this signal to logic level. the rightmost part is biasing ckt (but quite strage) for the sensor.....

 

[vongy]

Re: How does it work?

the input is a logic value, either 0 or 1
and i think the diode is used for impriving the NMOS's Vth voltage……

 

[walker5678]

Re: How does it work?

Try to understand the function of this circuit in its application, and that will make it clearer and easier to understand the purpose of this circuit, i think.