{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

Handout_7_-_MOSFET_Amplifier_-_DC_Analysis

# Handout_7_-_MOSFET_Amplifier_-_DC_Analysis - EE 101A Winter...

This preview shows pages 1–4. Sign up to view the full content.

1 EE 101A / Winter 10 Handout #7 EE 101A MOSFET Amplifier – DC Analysis Reading – Sedra & Smith, Chapter 1.4, Chapter 4.4 – 4.5 1. Motivation Amplification is an essential capability of today’s electronic systems, digital and analog. voltage gain A v v o v i A v in decibel (db) = 20 log A v current gain i o i i i A A i in db = 20 log A i power gain i i o o i o p i v i v p p A = A v A i A p in db = 10 log A p Voltage Buffer A v 1 , A i >> 1 , A p >> 1 Current Buffer A v >> 1 , A i 1 , A p >> 1 i i i o + v i - + v o -

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
2 In practice, the transfer characteristic of the amplifier may not be as ideal as that shown in the previous page. A DC input voltage is needed to bias the circuit to operate at a point (bias point, operating point, quiescent point) of the transfer characteristic where the voltage gain is high (i.e., slope is steep). The input and output voltages will have both DC and AC components. v I = V I + v i v O = V O + v o The gains defined in the previous page will apply only to the AC components. e.g., voltage gain A v v o v i The voltage gain can be determined as the slope of the transfer characteristic. voltage gain I O v dv dv A
3 2. Common Source Amplifier The amplifier shown, with the source connected to ground (common), is the most basic amplifier.

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

### Page1 / 13

Handout_7_-_MOSFET_Amplifier_-_DC_Analysis - EE 101A Winter...

This preview shows document pages 1 - 4. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online