Practical Circuit Design and Simulation Tips - ADC, LDO, BGR

Practical circuit design and simulation tips to be used in DC Biasing, LDO/BGR, ADC Opamp design.

This course addresses those topics which are practical in nature and used by practicing engineers. The 3-hour course material is based on my CMOS Analog IC Design Q&A Refresher Course offered in Spring 2020, where practicing designers from the industry and academia brought out questions that they needed answers for.

There might not be a continuity of topics. I will try to cover the topics with in the scope of designing an ADC. These principles are applicable to most of the ADC designs.

Learn more about

1. Design Thinking in IC Design

2. DC Biasing of the circuits

3. Circuits for reference voltage and current generation

   1. Voltage Regulator

   2. BGR

   3. LDO

   4. V-to-I

   5. Precision Current References

4. .Opamp design for Analog to digital converters

   1. OTA

   2. Buffer

   3. Unity Feedback OTA

   4. Layout design strategies – 2stage opamp + CMFB

5. Sense and Return mechanisms in Feedback circuits

   1. Current and Voltage circuits

6. Sub-Threshold Conduction

   1. Low voltage Operation

7. ADC Design and Simulation

   1. Near Nyquist performance of Opamp for ADC Circuits

   2. Spectral Analysis and No. of FFT Points for simulation

   3. Simulation time for performance

   4. Resistors – their variation and Calibration

   5. Switch design for S/H

   6. CDAC - Capacitive DAC for Sigma Delta ADC

8. Data Transport Applications

   1. High Speed Latch design

   2. 2:1 MUX and 1:2 DEMUX

   3. Serializer design for 20Gbps