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Data Acquisition / Data Logging Circuits, Page 1
Data Acquisition / Logging: 
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Last Updated on: Thursday, April 07, 2016 01:03 PM

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Links to electronic circuits, electronic schematics, designs for engineers, hobbyists, students & inventors:

12-Bit 8-Channel Data Acquisition System Interfaces to IBM PC Serial Port -  DN35 Design Notes (Linear Technology). . .  [Linear Technology]

 

16-Bit, 250 kSPS, 8-Channel, Isolated Data Acquisition System  -  System Performance Figure 4 shows a plot of the ADC code occurrences for 10, 000 samples (1 sec at 1 kSPS) when CH0 through CH7 are shorted to GND on the terminal block of the evaluation board. Note that 95% of the codes fall within 4 LSBs, and the peak-to-peak spread is approximately 7 LSBs. The sampling rate 250 kSPS is controlled by the system demonstration platform ( EVAL-SDP-CB1Z ), and the digital signal processing including the signal windowing and FFT is calculated on a PC by the CN-0254 evaluation software. . .  [Analog Devices-Circuits from the Lab]

16-Channel 24-Bit Delta Sigma ADC Provides Small Flexible & Accurate Solutions for Data Acquisition -  DN297 Design Notes (Linear Technology). . .  [Linear Technology]

 

18-Bit, 1.33 MSPS, 16-Channel Data Acquisition System  -  Information and details regarding test setup and calibration, and how to use the evaluation software for data capture can be found in the CN-0269 Software User Guide In order for another controller to be used with the EVAL-CN0269-SDPZ evaluation board, software must be developed by a third party. . .  [Analog Devices-Circuits from the Lab]

 

1-Wire Barometer -  This article describes details for constructing a 1-Wire Barometer which will work on a Dallas Semiconductor Corporation 1-Wire network. The reason for this second version is that the transistor level-changer of the original design was found to be temperature sensitive. If you have constructed the original version (V1. 0) you can modify it according to the diagram shown below. This involves removing the transistor and 5 resistors, then rewiring it with 6 new resistors. . . .  [David W. Bray]

 

1-wire barometer -  This is a description and the ongoing story of my project to build a 1-wire barometer based on the MPX4115A. . .  [Philip Gladstone]

 

1-Wire Barometer project -  The 1-wire weather group is always looking for new sensors and ideas that will allow them to monitor more and more elements, the 1-wire barometer is just one of these sensors. Based around the Motorola MPX4115A absolute pressure sensor, the group has been trying to design / decide on a good interface circuit for quite a long time. . . .  [Simon Atkin's website]

 

1-Wire Barometer--5/10 Volt Design vrs 2 -  This article describes details for constructing a 1-Wire Barometer which will work on a Dallas Semiconductor Corporation 1-Wire network. It differs from the popular Version 1. 1a in that it has more than twice the resolution. As with 1-Wire Barometer Version 1. 1a, this design uses a Motorola MPX4115 Silicon Pressure Sensor, a Dallas Semiconductor DS2438 Smart Battery Monitor (to perform 1-Wire analog to digital conversion), an operational amplifier, two voltage regulators, two diodes, a LED, and several resistors and capacitors. . . .  [David W. Bray]

 

1-Wire Barometer--5/10 Volt Design Vrs 3 -  This article describes details for constructing a 1-Wire Barometer which will work on a Dallas Semiconductor Corporation 1-Wire network. This design differs from the popular Version 1. 1a in that it has more than twice the resolution. . . .  [David W. Bray]

 

2 Way IR Terminal -  This unit provide 2 way IR communications using a numeric keypad and an LCD display. Data is sent and received in ASCII with no regard to what the data means to any particular device. . .  [Luhan Monat - Mesa Arizona ]

 

3 New S/H Chips for Fast, Accurate Data Acquisition, and 8-Channel Distribution  -  This file contains many designs, please scroll to locate this circuit. . . .  [Analog Devices-Analog Dialogue by Predella, Pete]

 

3-Volt-Supply 12-Bit Multichannel Data-Acquisition System Samples at 50 kHz -  Analog Devices-Analog Dialogue. . .  [by Curtin, Mike and Smith, Matt]

 

4 Bit Digitizer / flash ADC using discrete components -  This 4 bit digitizer originally appeared in my Lab Notes column in Polyphony magazine. This type of analog to digital converter is usually called a flash converter because conversion happens asynchronously, with no clocks or strobes. Input a voltage and the digital output appears in a flash :-) This design is fast enough to digitize signals into the low audio frequency range, less than 1kHz. or so. . . .  [by John Simonton]

 

4 Sample/Holds on a Chip with 1-s max Acquisition Time -  File contains several designs, please scroll to find this circuit. . . .  [Analog Devices-Analog Dialogue by Fluke, Brad and Predella, Pete]

 

8-channel data-acquisition system -  PDF contains several designs, scroll to find this one. . .  [Analog Devices-Analog Dialogue by Szymczak, Jakub]

 

8-channel data-acquisition system features auto calibration -  12/03/98 EDN Design Idea   (File has several circuit ideas. Scroll to find this one. ) The circuit in Figure 1 is a versatile, eight-channel, differential-input, 16-bit data-acquisition system. A PC controls the circuit via the computer's parallel port. Under control of the PC, you can select one of eight differential voltage inputs, each with a programmable input-voltage range of 1. 25, 2. 5, 5, or 10V. In addition, calibration factors stored in the controlling PC's software calibrate each input range for gain and offset errors. . . .  [by Mark Shill, Burr-Brown Corp, Tucson, AZ]

 

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Data Acquisition / Logging:  #'s -A      B - C      D - K       L - N    O - S     T - Z


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