* my own book
Some friends asked me to write a book about circuit design. Work in progress. (Last update 2019)
* technology.pdf (222040 bytes)
Cross Sections of circuit components and their associated parasitic elements (published 2008)
* OP_part1.pdf (231489 bytes)
The most simple OPAMP circuit I know. Nice to learn some basics (published 2019)
* OP_part2.pdf (227998 bytes)
The most simple OPAMP circuit for low voltage, ground compatible input. (published 2019)
* OP_part3.pdf (194966 bytes)
This document describes how to use the folded cascode input stage to create a rail to rail opamp. It does not yet hold a description how to build the output stage. The output stage will be provided by the next post. (published 2019)
* OP_part4.pdf (371185 bytes)
This document describes how to build a rail to rail output stage and how to attach it to the rail to rail input stage discussed in OP_part3.pdf. (published 2019)
* OP_part5.pdf (172992 bytes)
How a chopper stabilized OPAMP works. (published 2019)
* OP_part6.pdf (324234 bytes)
Auto zero amplifiers and the limits imposed by the Seebeck effect. (published 2019)
* comparators_part1.pdf (353821 bytes)
Basics of building comparators for continuous time applications. (published 2019)
* comparators_part2.pdf (217204 bytes)
Calculation of the propagation delay of a single stage comparator. (published 2019)
* comparators_part3.pdf (270835 bytes)
Clocked comparators avoid part of the propagation delays of continuous time designs. This paper shows some basic circuits. (published 2019)
* comparators_part4.pdf (167975 bytes)
Circuits required to interface asynchronous signals with synchronous logic. (published 2019)
* relaxation_oscillators.pdf (366027 bytes)
Relaxation oscillators used for low precision clock signals. (published 2019)
* reference_generators_part1.pdf (353209 bytes)
Widlar bandgap and Brokow bandgap. (published 2019)
* reference_generators_part2.pdf (279996 bytes)
Bandgaps using vertical PNP transistors used in CMOS technologies. (published 2019)
* reference_generators_part3.pdf (192523 bytes)
Bandgaps using CMOS transistors operating in weak inversion. (published 2019)
* system_part1.pdf (236627 bytes)
Supply considerations for system on a chip and system in a package. (published 2019)
* therm.pdf (2002) (104701 bytes)
Thermal considderations designing power ICs (published 2002)
* howto_1.pdf (34235 byte)
Description how to measure pulse amplitudes with high accuracy (published 2002)
* Vreg_spec.pdf (104541 byte)
Voltage regulators are high precision components although the specifications
look very unexciting. This presentation shows what considderations
are behind these "unexciting" numbers. (published 2003)
* reset_parameters.pdf (25774 bytes)
This document describes the meaning of parameters used to describe the reset thresholds of voltage regulators with reset. (published 2004)