ADC Guide, Part 13: Input Impedance - Planet Analog
WEBMar 18, 2013 · Learn how input impedance affects the conversion accuracy of an ADC and how to match it with the signal source. Compare buffered and unbuffered ADCs and their input impedance models, variations, and effects.
Using Deep N Wells in Analog Design
WEBMay 7, 2015 · Learn how deep n wells can reduce substrate noise and isolate NMOS devices in mixed-signal circuits. See cross sections, examples and layout tips for deep n well CMOS processes.
Layout Dependent & LOD Effects in Analog Design
WEBOct 9, 2014 · Learn how length of diffusion (LOD) effect, one of the layout dependent effects (LDE), affects the performance of analog devices. Find out how to design with LDE effects using various layout techniques and simulation tools.
Peak Detector: A Classic Analog Circuit Still in Wide Use
WEBDec 5, 2013 · Learn how a simple peak detector circuit monitors and holds the maximum value of a voltage signal, and how it is used for RF power measurement. Compare it with software-based alternatives and see its historical predecessor, the crystal radio.
Matching in Analog Layout
WEBMay 20, 2014 · Learn how to design analog circuits with matching techniques such as common centroid layout to reduce device threshold differences. See examples, references, and tips for automatic placement and routing.
Operational Transconductance Amplifier (OTA) - Planet Analog
WEBAug 17, 2022 · Learn what an OTA is, how it differs from an OP amp, and what applications it has in analog and mixed signal circuits. An OTA is a voltage-controlled current source with high output impedance, while an OP amp is a voltage-controlled voltage source with low output impedance.
ADC Guide, Part 12: Input Configurations; Single-Ended
WEBMar 12, 2013 · Learn the differences and advantages of single-ended and differential input ADCs, and how to choose the best configuration for your system. Differential ADCs have high noise immunity, dynamic range, and common-mode rejection, but …
The Basics of SerDes (Serializers/Deserializers) - Planet Analog
WEBSep 16, 2010 · Learn how SerDes devices can compress wide parallel data buses to a single differential signal for high-speed data transmission. Understand the basic operation, functions, and coding schemes of SerDes, such as 8B/10B encoding.
An Analog Tutorial: Current sources - Planet Analog
WEBMar 28, 2019 · Learn about different types of current sources, including the Widlar current source, in this article by Steve Taranovich. The Widlar current source is a low-value resistor circuit that is commonly used in the front end of differential transistor pairs in op amps.
Planet Analog - All Signal No Noise
WEB5 days ago · Planet Analog provides an online community for semiconductor and system designers/engineers interested in advancing analog design techniques.