A vintage 12 Bit 100 kHz ADC PCI card i built during my studies (last century, around 1993).

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Hardware:

  • ADC Chip is a Analog Devices AD1674KN, 12 Bit, 100 kHz
  • Three 74LS224AN chips to create a 16x12bit FIFO
  • UM8253-5 - Programmable Interval Timer for clocking
  • D8255AC general purpose programmable input/output devices
  • Two GAL20V8AS gate array logic chips doing sequence control
  • Other misc chips like line buffers/drivers, flip-flops

Software:

  • Custom SCO-linux driver
  • Custom SCO linux software and scripts for data evaluation an plotting (C++, gnuplot)
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External box for input signal processing and output of testsignals:

  • +- 12 V power supply
  • Signal input with anti-alias filter
  • Trigger input
  • Output of programmable rectangle waveform
  • Some status led's
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Test signal power amplifier:

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