EE 220

• Analog Integrated Circuits
• Semester Offered: 1st semester
• Course Credit: Lecture: 4 units (3 units lecture, 1 unit lab)

Catalog Description

Integrated circuit devices and modeling. Noise analysis and modeling. Review of basic operational amplifier design and compensation. Advanced current mirrors and operational amplifiers. Operational transconductance amplifiers. Common-mode feedback circuits. Comparators. Sample and holds. Voltage references and translinear circuits. Discrete-time signals. Switched-capacitor circuits. Co-req: CoE 143 or equiv. 6h (3 lec, 3 lab) 4 u.

Syllabus

Module	Topics	Outcomes	Resources	Activities
1	CMOS Technology and Fabrication Deep submicron issues Process variations	Identify the key characteristics and non-idealities of a CMOS fabrication process. Analyze how these key characteristics and non-idealities change the characteristics of the devices that will be built on it. Perform simple circuit simulations using a ngspice.	Video: Silicon Run I (1996) Youtube link ngspice Tutorial	220-A1.1: IC fabrication 220-A1.2: A Wideband Voltage Divider Circuit
2	Passive CMOS Devices Resistors Capacitors Inductors	Identify, model, and analyze the effects of CMOS process parameters on the characteristics of integrated resistors, capacitors, and inductors. Verify these effects via circuit simulation.	Spyder IDE website Using Python with ngspice	220-A2.1: Integrated Resistors and Capacitors
3	MOS Transistors Transistor Models Short-Channel Effects	Identify, model, and analyze the effects of CMOS process parameters on the characteristics of MOS transistors. Verify these effects via circuit simulation.	Arizona State University Predictive Technology Models (PTM) website	220-A3.1: MOS characteristic curves simulation 220-A3.2: Extracting MOS small-signal parameters 220-A3.3: The MOS transition frequency
4	Model-Based Analog Circuit Design Small-Signal Model ${\tfrac {g_{m}}{I_{D}}}$ and $V^{*}$	Design simple single-transistor amplifiers using SPICE models as an alternative to closed-form models. Verify these designs via circuit simulation.		220-A4.1: MOS Intrinsic Gain 220-A4.2: Simulating ${\tfrac {g_{m}}{I_{D}}}$ 220-A4.3: Design of a Simple Common-Source Amplifier
5	Electronic Noise Thermal Noise Shot Noise Flicker Noise Noise Analysis	Identify the fundamental types of electronic noise and differentiate one noise type from another. Model and analyze the effects and implications of electronic noise in semiconductor devices and circuits. Model and analyze the effects and implications of electronic noise in feedback circuits. Verify these effects via circuit simulation.		220-A5.1: Device noise power-spectral density and total integrated device noise 220-A5.2: Amplifier output noise and input-referred noise
6	Operational Transconductance Amplifiers (OTAs) Op-Amps vs. OTAs Switched-Capacitor Feedback	Differentiate between operational amplifiers (Op-Amps) and operational transconductance amplifiers (OTAs). Analyze OTA circuits with capacitive feedback. Verify the behavior of these circuits via simulation.		220-A6.1: Transient response of an OTA with capacitive feedback
7	Differential Circuits Differential-Mode Common-Mode CMRR, PSRR Baluns	Differentiate and identify the advantages/disadvantages and cost-benefit trade-offs between fully-differential circuits vis-a-vis single-ended circuits. Model and analyze the behavior of fully-differential circuits. Verify the behavior of these circuits via simulation.		220-A7.1: Differential-mode amplifier gains 220-A7.2: Common-mode Rejection Ratio 220-A7.3: Input-referred offset
8	Current Mirrors Cascoding Common-Mode Feedback	Model, analyze, and design current mirror circuits for biasing fully-differential and single-ended OTAs. Model, analyze, and design common-mode feedback (CMFB) circuits in differential OTAs. Verify the behavior of these circuits via simulation.		220-A8.1: Amplifier output swing 220-A8.2: Gain-boosted current mirror frequency response 220-A8.3: Basic common-mode feedback circuits
9	The Folded-Cascode OTA DC Characteristics Small-signal Characteristics Noise	Identify the advantages and disadvantages of a folded-cascode OTA. Model and analyze the DC and small-signal characteristics of a folded-cascode OTA. Verify the behavior of these characteristics via simulation.		220-A9.1: Biasing the folded-cascode OTA 220-A9.2: Folded-cascode small- and large-signal gain
10	Feedback and Stability Loop Gain Phase and Gain Margins Compensation	Model and analyze the DC and small-signal characteristics of a folded-cascode OTA with feedback. Verify the behavior of these characteristics via simulation.		220-A10.1: Folded-cascode OTA loop gain
11	Amplifier Settling Linear settling Slewing	Model and analyze the noise and settling characteristics of a folded-cascode OTA with feedback. Verify the behavior of these characteristics via simulation.		220-A11.1: Folded-cascode OTA noise analysis 220-A11.2: Folded-cascode OTA linear and non-linear settling
12	An Amplifier Design Example	Design a fully-differential OTA with capacitive feedback. Verify the OTA characteristics via simulation.		220-A12.1: Folded-cascode OTA design mini-project
13	EE 220 Project Halfway Consultations	Design a fully-differential OTA with capacitive feedback. Verify the OTA characteristics via simulation.		220-A13.1: Design project specifications
14	EE 220 Project Submissions	Design a fully-differential OTA with capacitive feedback. Verify the OTA characteristics via simulation.

References

• Gray, Hurst, Lewis, Meyer, Analysis & Design of Analog Integrated Circuits, Wiley 2001.
• Johns, Martin, Analog Integrated Circuit Design, Wiley 1997.
• Design of Analog CMOS Integrated Circuits, Behzad Razavi, McGraw-Hill, 2000.
• The Design of CMOS Radio-Frequency Integrated Circuits, Thomas H. Lee, 2nd Ed., Cambridge University Press, 2003.
• The Designers Guide to SPICE & SPECTRE, K. S. Kundert, Kluwer Academic Press, 1995.
• Operation and Modeling of the MOS Transistor, Y. Tsividis, McGraw-Hill, 2nd Edition, 1999.