L08 lecture full - Folded Cascode Good general purpose...

Info iconThis preview shows pages 1–7. Sign up to view the full content.

View Full Document Right Arrow Icon
EECS 240 Lecture 8: Folded Cascode B. Boser 1 Folded Cascode Good general purpose single-stage OTA Analysis –B i a s –G a i n – Input capacitance – Frequency response – Feedback, stability – Settling time –N o i s e
Background image of page 1

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

View Full DocumentRight Arrow Icon
EECS 240 Lecture 8: Folded Cascode B. Boser 2 Schematic Many more transistors, but overall characteristics very similar to common-source stage.
Background image of page 2
EECS 240 Lecture 8: Folded Cascode B. Boser 3 Bias Subcircuit Vbias2 Vbias1 VDD M=250m M6 100 / 1 100 / 1 M7 M8 100 / 0.5 M9 100 / 0.5 100 / 0.5 M10 dc = 200uA I1 dc = 200uA I2 dc = 200uA I3 For device sizes on page 7.
Background image of page 3

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

View Full DocumentRight Arrow Icon
EECS 240 Lecture 8: Folded Cascode B. Boser 4 DC Gain, Bias
Background image of page 4
EECS 240 Lecture 8: Folded Cascode B. Boser 5 Bias … Differential Inputs
Background image of page 5

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

View Full DocumentRight Arrow Icon
EECS 240 Lecture 8: Folded Cascode B. Boser 6 Low Frequency Gain, A dm Gain / Output Range tradeoff –A dm =120 Æ V od = 4.3V –A dm =200 Æ V od = 3.6V (nominal parameter)
Background image of page 6
Image of page 7
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 13

L08 lecture full - Folded Cascode Good general purpose...

This preview shows document pages 1 - 7. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online