Wednesday, October 31, 2007

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.

LM336-2.5 - Voltage Reference Diode

The series is useful as precision 2.5-V low-voltage references (VZ) for digital voltmeters, power supplies, or operational-amplifier circuitry. The 2.5-V voltage reference makes it convenient to obtain a stable reference from 5-V logic supplies.

LM336-2.5 - Voltage Reference Diode

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  as that was not in supply)

Related Resources -

ETX, modification of electronic circuit - By changing the 2,5 Volt reference diode from a fixed LM385 to an adjustable LM336 of 2,5 V, The DC motor voltage and therefore the motor speed can be adjusted.

Precision Op-Amp Current Source - In this circuit we tackle the error indicated in the earlier Current Source. The LM336-2.5V eliminates the tiny error of the regulated supply and resistors. Thereby increasing Precision to a higher degree.

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

delabs Schematics