Wednesday, October 31, 2007

LM336-2.5 - Voltage Reference Diode

LM336-2.5 - Voltage Reference Diode

The LM136-2.5/LM236-2.5 and LM336-2.5 integrated circuits are precision 2.5V shunt regulator diodes. These monolithic IC voltage references operate as a low-temperature-coefficient 2.5V zener with 0.2 dynamic impedance. A third terminal on the LM136-2.5 allows the reference voltage and temperature coefficient to be trimmed easily.

Features

  • Low temperature coefficient
  • Wide operating current of 400 µA to 10 mA
  • 0.2 dynamic impedance
  • ±1% initial tolerance available
  • Guaranteed temperature stability
  • Easily trimmed for minimum temperature drift
  • Fast turn-on

(This was used by me in the manufacture of Indicators and Controllers and was used in place of ICL8609 (not sure) as that was not in supply)

Related Resources -

Tuesday, October 23, 2007

Electronic Projects by Martin Clausen

Electronic Projects by Martin Clausen

This is the combined homepage of  Hannes , Jonas and Martin

Electronic Projects for 8051 Development

Virtual walk through my 8051 development suite

Virtual walk through my 8051 development suite is a virtual sightseeing tour through my 8051 lab. Dual Slope ADC for 8051 -   A low cost circuit to measure voltages with a precission up to 14 bit.

Some of the Projects here are
  • 8051 Development - Code, schematics and hints for development with 8051
  • Digital Frequency Generator -Frequency generator with DDS technology
  • µC ADC - RS232 controlled 16 bit data aquisition
  • Low-cost ADC - PC to take a look at signals up to 1 KHz
  • Datalogger- 8 channel, 2 counter, 64K RAM, LCD, RS232
  • MiniDS- Mini Digital Storage Scope, one channel, low cost ADC.

Wednesday, October 17, 2007

Control HD44780-based Character LCD

Control HD44780-based Character LCD

The Industry Standard Character LCD

by Peter Ouwehand from Netherlands

Where

Tuesday, October 02, 2007

Integrated Publishing - Electronics Training

Integrated Publishing - Electronics Training

Your source for manuals, engineering reference manuals, and all training material.

  • Antenna and Masts - operation manuals for Antennas and Masts.
  • Electronic Calibrators - operation manuals for Electronic Calibrators
  • Inverters - operation manuals for Inverter equipment
  • Oscilloscopes - operation manuals for Oscilloscopes equipment
  • Power Supplies - operation manuals for Power Supply equipment

Monday, October 01, 2007

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.

Blocks

80C51 Analog Analog-Design Analytical-Instrumentation Android Application-Notes-2 ASIC-Design ASIC-SOC-FPGA Bipolar-Transistors Capacitors Circuit-Archive Circuit-Design Circuit-Design-2 Communications Communications-Chips Component-Testing Computer-IC-Module Computer-Interfacing Control-Systems Design-Service Design-Service-2 Design-Service-3 Digital Discrete-Semiconductors DSP EDA EDA-2 EDA-3 EDA-4 EDA-5 Educational Educational-2 Electrical Electromechanical Embedded Embedded-2 Embedded-Applications Embedded-Systems-Tools Energy-Power Engineering-Services Engineering-Services-2 Engineering-Services-3 ESD-EMI-RFI Firmware Home-Automation Industrial-Automation IoT-WSN-M2M LED-Lighting Magazines Manufacturing-Services Materials-Nanotech Mechanical-3D-CAD Mechatronics Medical-Electronics MEMS Microcontroller Microelectronics Mixed Mixed-Semiconductor Mixed-Signal-Design Opamps Open-Hardware Optoelectronics Organizations-Associations Passive-Components PCB-Layout Photonics-Optics PIC Power-Devices Power-Electronics Power-Electronics-Design Process-Control Process-Control-2 Product-Safety Product-System-Design Projects Quality Reference Research-Institutes RF-Components RF-Design RF-Engineering-Services RF-Microwave RF-Semiconductor RF-Wireless-Networking Robotics Scientific-Software Semiconductors Sensors SMPS-Power-Supply Software-Code Spice-Simulation Standards Standards-2 Tech-Docs Tech-Media Technical-Computing Test-Measurement TM-Applications Training-Consulting Virtual-Instrumentation