Design Gopher

Product and Process Design. Electronic Projects, EE Magazines and EDA Tools. Design Reference like HandBooks, Manuals and Datasheets.

Search This Blog

Thursday, April 02, 2020

LM311 - Voltage Comparator

The LM111, LM211 and LM311 are voltage comparators that have input currents nearly a thousand times lower than devices like the LM106 or LM710. They are also designed to operate over a wider range of supply voltages: from standard ±15V op amp supplies down to the single 5V supply used for IC logic.

LM311 - Voltage Comparator

LM311 - Voltage Comparator

Both the inputs and the outputs of the LM111, LM211 or the LM311 can be isolated from system ground, and the output can drive loads referred to ground, the positive supply or the negative supply. Offset balancing and strobe capability are provided and outputs can be wire ORed.
  • Operates from single 5V supply
  • Input current: 150 nA max. over temperature
  • Offset current: 20 nA max. over temperature
  • Differential input voltage range: ±30V
  • Power consumption: 135 mW at ±15V
Related Resources -

Voltage Comparator Information And Circuits

This page provides basic information about voltage comparator integrated circuits and is to act as reference material for other circuits. The circuits shown are based on the LM339 Quad Voltage Comparator chip or the LM393 Dual Voltage Comparator chip. These devices are functionally the same. The LM311 Voltage Comparator can be used for these applications as well but it also has a number of unique features.

Comparators and Schmitt Triggers

An LM311 in a comparator circuit is shown at the right, with the pin numbers for the connections. The open-collector output is at pin 7, and the ground for this transistor is at pin 1. It is shown pulled up to the logic voltage of +5 with a 1k resistor, which is typical. The output of the LM311 can sink 8 mA. A comparator's output is essentially binary, YES or NO.

Monday, February 17, 2020

Introduction to Mechatronics

Introduction to Mechatronics and Measurement Systems. This text provides comprehensive coverage of the field of mechatronics for mechanical, electrical and aerospace engineering majors. The author presents a concise review of electrical circuits, solid-state devices, digital circuits, and motors.

Mechatronics and Measurement Systems

Mechatronics design considerations are presented throughout the text and in Design Example. The text's numerous illustrations, examples, class discussion items, and chapter questions provide an opportunity to understand and apply concepts.

Introduction to Mechatronics

Online video demonstration available for viewing. The clips show and describe electronic components, mechatronic device and system examples, and laboratory exercise demonstrations.

Mathcad and Matlab files for performing analyses throughout the book. The files can be downloaded and edited to perform similar and expanded analyses.

Dr. David G. Alciatore and Michael B. Histand of the Colorado State University in Mechanical Engineering have books and info for Robotics and Mechatronic Students.

Monday, February 10, 2020

Cadence Design Systems and OrCAD

Cadence RF Design Methodology Kit enables customers to rapidly address wireless opportunities by addressing system-level, verification and IC parasitic challenges.

Cadence Design Systems and OrCAD

Cadence PSpice A/D and Advanced Analysis - Spice-based simulator for system design. It simulates complex mixed-signal designs containing both analog and digital parts, and it supports a wide range of simulation models such as IGBTs, pulse width modulators, DACs, and ADCs.

Cadence Design Systems and OrCAD

Cadence OrCAD Capture and Capture CIS 

Schematic design solution, supporting both flat and hierarchal designs from the simplest to the most complex. Seamless bi-directional integration with OrCAD PCB Editor enables data synchronization and cross-probing/placing between the schematic and the board design.

Cadence Tutorial for VLSI Design

This site contains a complete on-line tutorial for a typical bottom-up design flow using CADENCE Custom IC Design Tools (version 97A). The examples were generated using the HP 0.6 um CMOS14TB process technology files, prepared at North Carolina State University (NCSU) and made available through MOSIS.

Monday, February 03, 2020

ADS7816 - 12-Bit High Speed Sampling AD

The ADS7816 is a 12-bit, 200kHz sampling analog to- digital converter. It features low power operation with automatic power down, a synchronous serial interface, and a differential input. The reference voltage can be varied from 100mV to 5V, with a corresponding resolution from 24mV to 1.22mV. - From TI Applications

ADS7816  - 12-Bit High Speed A/D Converter

Low power, automatic power down, and small size make the ADS7816 ideal for battery operated systems or for systems where a large number of signals must be acquired simultaneously. It is also ideal for remote and/or isolated data acquisition.

ADS7816 - 12-Bit High Speed Sampling AD

12-Bit High Speed Micro Power Sampling Analog-to-Digital converter

The ADS7816 is a classic successive approximation register (SAR) analog-to-digital (A/D) converter. The architecture is based on capacitive redistribution which inherently includes a sample/hold function.

The converter is fabricated on a 0.6ยต CMOS process. The architecture and process allow the ADS7816 to acquire and convert an analog signal at up to 200,000 conversions per second while consuming very little power

Saturday, January 18, 2020

Beyond Logic - Interfacing the PC

The site started in 1995 under the name of Interfacing the PC and was moved to beyondlogic.org on the 29th February 2000 where it has cemented itself as an established, up to date source of non-biased information.

Beyond Logic - Interfacing the PC

Beyond Logic includes detailed information on Universal Serial Bus, Serial Ports (RS232), Parallel Ports (SPP/ECP/EPP/IEEE1284), Device Drivers and more.

Beyond Logic - Interfacing the PC

Falcom FSA03 Smart Antenna with uBlox 5 GPS Chipset

The Falcom FSA03 GPS module is an extremely cost effective GPS solution for embedded systems. the FSA03 includes an uBlox 5 single chip GPS module integrated with a Sarantel quadrifilar helix antenna to make a tidy single board solution.

The Old Beyond Logic Site - Ethernet & TCP/IP Interfaces, RS-232 Interfacing and Universal Serial Bus Reference pages.

Feedback and Temperature Control

Excellent Online Educational Pages at Exeter. Students and Teachers can get ideas on how to enhance and enrich the Science Education Process.

e-Learning Resources - Physics at Exeter

A Sound understanding of Physics and Chemistry is needed for stepping into “Electricity and Magnetism”. We have to move young minds into Electronics even before High School, as a part of Science itself.

e-Learning Resources – Physics at Exeter
  • Practical Electronics II and Electronics for Measurement Systems
  • Feedback and Temperature Control
  • Computer Interfaces for Instrumentation Systems
  • Troubleshooting Op-Amp Circuits
Troubleshooting Op-Amp Circuits

The ability to diagnose and cure problems in a systematic manner is an exceptionally valuable skill. In PHY2028 students are given a heap of components, a breadboard, and measuring equipment.

Feedback and Temperature Control

System Model, Types of Feedback Control, On-Off Control, Proportional+Derivative Control, Proportional+Integral+Derivative Control, Proportional+Integral Control, Third-Order Systems..

Joar Falstad - Low cost industrial IO

Combine standard Industrial I/O cards and a PC - The idea is to make the use of low-cost , massproduced industrial I/O cards in conjunction with a multimedia PC easy , yet powerful and flexible.

Joar Falstad - Low cost industrial IO

Joar Falstad - " I'm a self employed service engineer in my own company Jo Tech Service  in Norway " , working with the same products & more ."
  • Advanced automatic spot announcing machine
  • Time & masterfile controlled analog conversion
  • Alarm generator for ships , schematic
  • PLC add on / PLC controlled analog multiplexer schematic
Composing examples using lowcost massproduced industrial standard analog / digital I/O cards

Joar Falstad - Low cost industrial IO

AD/DA Conversion and Data Acquisition 

Latest USB interface and the one of the first ISA interface boards we used in mid 90's  made easy. Users : laboratories & more. 

Jo Tech Service
Lykkmarka 53, 7081 Sjetnemarka, 047 Norway

Sunday, November 17, 2019

Elektronik und Mikrocontroller

Author of books and CDs, Microcontroller, interface programming or new ideas for hobby projects. The Electronics Fundamentals for hobby and education helps the beginner with valuable information.

The electronic logbook is amazing, you can have a look at so many circuits and projects with photos. You will learn many things and make you develop skills.

Elektronik und Mikrocontroller - Burkhard Kainka

For the advanced Hobbyist there are projects on Microcontroller and Measuring and control devices with the USB and PC Interfacing,

Burkhard Kainka - SDR Radio

SDR Radio with USB

Electronics experiments for children - "For children it is easier than for adults. Since it is enough, if someone applied sufficient time and a little tinkering with them. Often all it takes is a little push to arouse interest and skills."

Extra Extra !