CMOS Operational Amplifier Design
Lesson 2pp. 1-36
13/11/2006 D. De Venuto 1
Two stage op amp design
13/11/2006 D. De Venuto 2
DC Balance conditions for the two stage op amp
13/11/2006 D. De Venuto 3
Design relationships for the two stage op amp
13/11/2006 D. De Venuto 4
Op Amp specification
13/11/2006 D. De Venuto 5
Unbuffered Op Amp Design Procedure
13/11/2006 D. De Venuto 6
Unbuffered Op Amp Design Procedure
13/11/2006 D. De Venuto 7
Unbuffered Op Amp Design Procedure
13/11/2006 D. De Venuto 8
Example 1 Design of a two-stage op amp
13/11/2006 D. De Venuto 9
Example 1
13/11/2006 D. De Venuto 10
Example 1
13/11/2006 D. De Venuto 11
Example 1
13/11/2006 D. De Venuto 12
Example 1
13/11/2006 D. De Venuto 13
Incorporating the nulling resistor into the Miller compensated two-stage op amp
13/11/2006 D. De Venuto 14
Design of the nulling resistor (M8)
13/11/2006 D. De Venuto 15
Example 2 – RHP Zero Compensation
13/11/2006 D. De Venuto 16
Example 2
13/11/2006 D. De Venuto 17
An alternate form of nulling resistor
13/11/2006 D. De Venuto 18
Programmability of the two-stage op amp
13/11/2006 D. De Venuto 19
Simulation of the electrical design
13/11/2006 D. De Venuto 20
5-to-1 Current Mirror with different physical performances
13/11/2006 D. De Venuto 21
Reduction of Parasitics
13/11/2006 D. De Venuto 22
Technique for reducing the overlap capacitance
13/11/2006 D. De Venuto 23
Chip voltage bias distribution scheme
13/11/2006 D. De Venuto 24
PSRR of the two-stage op amp
13/11/2006 D. De Venuto 25
Positive PSRR of the two-stage op amp
13/11/2006 D. De Venuto 26
Positive PSRR of the two-stage op amp
13/11/2006 D. De Venuto 27
Positive PSRR of the two-stage op amp
13/11/2006 D. De Venuto 28
Concept of the PSRR+ for the two-stage op amp
13/11/2006 D. De Venuto 29
Negative PSRR of the two-stage op amp with Vbias, grounded
13/11/2006 D. De Venuto 30
Negative PSRR of the two-stage op amp with Vbiasgrounded
13/11/2006 D. De Venuto 31
Negative PSRR of the two-stage op amp with Vbiasconnected to VSS
13/11/2006 D. De Venuto 32
Negative PSRR of the two-stage op amp with Vbiasconnected to VSS
13/11/2006 D. De Venuto 33
Frequency response of the negative PSRR of the two-stage op amp with VBias connected to VSS
13/11/2006 D. De Venuto 34
Approximate model for negative PSRR with VBiasconnected to ground
13/11/2006 D. De Venuto 35
Approximate model for negative PSRR with VBiasconnected to VSS
13/11/2006 D. De Venuto 36