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Data Logging / Acquisition Circuits  Page 2
   
  Data Acquisition / Logging:  #-A      B-C      D-K       L-N    P-S     T-Z    
Last Updated on: Monday, November 02, 2009 03:40 PM

Circuits Designed by Dave Johnson, P.E. :
  • C-MOS INVERTER MAKES LOW POWER AMP
    With the addition of one resistor and a capacitor, some common logic ICs can be transformed from digital to analog duties.  This circuit outlines some the features to expect from different inverter ICs.
  • CIRCUIT FORMS DIVIDE BY 1.5 COUNTER
    Two inexpensive ICs divide a TTL clock signal by 1.5. By following the circuit with another flip/flop, you could also generate a divide by three function.

Links to electronic circuits, electronic schematics, designs for engineers, hobbyists, students & inventors:
Bang Bang Thermostat is Simple and Efficient - 11/06/97 EDN-Design Ideas:  Perhaps  simplest and oldest feedback loop is  nonproportional, all-or-nothing, "bang-bang" rmostat. Fully turning on a heater when  temperature is below setpoint and off when it's above setpoint is a straightforward example of a servomechanism. Yet, elementary and crude as servomechanisms are, examples surround.....(design idea added 10/04)
Bench Characterization of ADCs Using a Low Cost PC Based Data Acquisition Board - Maxim Application Notes / 633 / Jul-04  (app note added 5/08)
Better Than Bessel Linear Phase Filters for Data Communications - AN56 Linear Technology The pace of  world of digital communications is increasing at a tremendous rate. Each day  engineer is requested to compact more data in  same channel bandwidth with closer channel spacing. This application note discusses some of  requirements and techniques for using  new LTC1064/1164 and LTC1264-7 filters which were designed specifically....
Big Endian to Little Endian Data Conversion using 3.3V Bus Switches - Pericom Semiconductor Application Brief # 034 (app note added 2/05)
Brain Wave Machine - (electronic circuit added 7/03)

Centronics port D/A converters and low-pass filter - (circuit added 1/07)
Centronics Port DA Converters and Lowpass Filter - (electronic diagram added 6/03)
CHANNEL LINK Moving and Shaping Information in Point-To-Point Applications - National Semiconductor Application Note  (app note added 2/06)
Circuit forms Divide by 1.5 Counter - Two inexpensive ICs divide a TTL clock signal by 1.5. By following the circuit with another flip/flop, you could also generate a divide by three function. ….(designed by David A. Johnson)
Circuit forms Divide by 1.5 Counter - Two inexpensive ICs divide a TTL clock signal by 1.5. By following the circuit with another flip/flop, you could also generate a divide by three function. ….(designed by David A. Johnson)
Closed Loop Control with the LTC1090 Series of Data Acquisition Systems - DN13  Design Notes (Linear Technology) (app note added 1/06)
CMOS Inverter Makes Low Power Amp - With the addition of one resistor and a capacitor, some common logic ICs can be transformed from digital to analog duties.  This circuit outlines some the features to expect from different inverter ICs. ….(designed by David A. Johnson)
CMOS Inverter Makes Low Power Amp - With the addition of one resistor and a capacitor, some common logic ICs can be transformed from digital to analog duties.  This circuit outlines some the features to expect from different inverter ICs. ….(designed by David A. Johnson)
Collection of Differential to Single-Ended Signal Conditioning Circuits for Use with the LTC2400 a 24-Bit No Latency ΔσADC in an SO-8 - AN78 Linear Technology This application note describes six low power differential-tosingleended signal conditioning circuits for the LTC2400 No Latency ΔΣTM 24-bit ADC. These circuits offer the customer a number of choices for conditioning differential input signals as low as 5mV to as high as ±2.5V, as well as operation on a single 5V or ±5V supplies....
Common Data Transmission Parameters and Their Definitions - National Semiconductor Application Note  (app note added 2/06)
Compass Schematic - (electronic diagram added 6/03)
Complex Data Acquisition System uses Few Components - DN24  Design Notes (Linear Technology) (app note added 1/06)
Component and Measurement Advances Ensure 16-Bit DAC Settling Time - AN74 Linear Technology DAC DC specifications are relatively easy to verify. AC specifications require more sophisticated approaches to produce reliable information. In particular, the settling time of the DAC and its output amplifier is extraordinarily difficult to determine to 16-bit resolution. This application note presents methods for 16-bit DAC settling time measurement....
Convert binary data to BCD in just 92 µsec  - 05/21/98 EDN-Design Ideas:   The subroutine "FASTBCD" (Listing 1)for 8051 µPs quickly converts 16-bit binary to 24-bit BCD data. The conversion algorithm involves left-shifting bits from the high-order bit of the binary number into the carry bit while left-shifting the carry bits into the low-order bit of a BCD shift register using BCD left-shift operations.....(design idea added 6/06)
Creating Data Logging Applications in Microsoft Excel - Agilent Application Note  (added 6/06)

 

      Data Acquisition / Logging:  #-A      B-C      D-K       L-N    P-S     T-Z    
 

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