WELLOG APPLICATION SPECIFIC IC’s
Revised
© 2008 WELLOG
All Rights Reserved
WHAT IS AN ASIC?
Many complex functions in electronics are performed using integrated circuits. In the Geophysics industry, hundreds of functions are
repeated from one segment of the industry to another. Complex circuits involving numerous integrated circuits in prior art systems are
being reduced to single chip Application Specific Integrated Circuits (ASIC’s).
WELLOG has been involved in simplifying older circuits using modern ASIC designs. ASIC’s have many advantages when compared to old
methods of integrated circuit design. In mixed signal (analog and digital) systems, very precise timing can replace circuits that are prone
to change operation and often fail when temperature changes or aging of components occur.
ASIC APPLICATIONS:
DISPLAY:
An application may need to display serial data on a Liquid Crystal Display (LCD). WELLOG has an ASIC that will receive serial data and display
the ASCII formatted data on a common LCD display. The ASIC is called an LCD ASIC.
QUADRATURE DECODING:
Depth sensing applications use a Quadrature encoder to measure the rotation of a calibrated depth measurement wheel. As the wheel rotates,
It generates two signals that indicate the amount of rotation and the direction of rotation. WELLOG has developed an ASIC that will convert
The Quadrature signal into a four digit depth in ASCII format. The depth can be displayed on a laptop computer using a standard RS-232 or
RS-422 serial data input. A second option is to display the depth
reading on a LCD display using the LCD ASIC above. The Quadrature decoder
is called a QUADRATURE ASIC.
DATA LOGGING:
Logging applications may require sensing and conversion of temperature into a binary value. The binary value may need to be transmitted
over a serial communication cable in ASCII format, by radio frequency, or directly to a laptop or LCD for display purposes. WELLOG has developed an ASIC that combines all of these functions into one chip called a TEMP LOGGING ASIC.
For two channel logging applications, WELLOG has developed an ASIC that measures two analog signals, converts the signals into binary form
And transmits the data in serial ASCII format for display on a standard laptop or serial LCD display. An application example is measurement of borehole inclination on two axes The ASIC is called an INCLINATION LOGGING ASIC.
WELLOG is continually developing new ASICs as more applications present themselves!
Ask WELLOG about how ASIC designs can help you modernize an old system or develop a new one!