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Advantages of transistor working in saturation/triode in LNA

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MK28

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HELP!

hello all,,,I am using Differential LNA and for Diff. LNA...do i need to use tail current (one transistor) at the bottom of the core circuit. My question is should this transistor be working in a 'saturation/triode' region....? Whats the advantage of this ?

please answer if you can !
 

Chethan

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Re: HELP!

MK28 said:
hello all,,,I am using Differential LNA and for Diff. LNA...do i need to use tail current (one transistor) at the bottom of the core circuit. My question is should this transistor be working in a 'saturation/triode' region....? Whats the advantage of this ?

please answer if you can !
The tail current sink in a diff LNA should be working in saturation. Only when it is working in saturation the current symmetricity across both the arm is maintained.
 

sabu

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HELP!

i tnk u r using it as const curr sourse hence it has to work in saturation.
tnk over it
bye
 

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