7912

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Tektronix 7912
500/750 MHz digitizer
Tektronix 7912AD with 7A26 and 7B90P

Produced from 1973 to 1989

Manuals
  • see individual model pages
(All manuals in PDF format unless noted otherwise)
Manuals – Specifications – Links – Pictures

The Tektronix 7912 is a series of high-speed digitizers that take one 7000-series vertical plug-in and one 7000-series horizontal plug-in. The primary markets for the 7912 series were nuclear and laser research.

All 7912 models use the same internal CRT-based, digitizing scan converter tube (T7912, 154-0698-00) that is not visible from the outside. The signal from the vertical plug-in deflects a writing beam through distributed deflection plates. The electrons hit a small flat rectangular solid state target, conceptually similar to the image sensor in a digital camera. The resolution of the target is 512×512, giving 512 points in the time domain and 9-bit linear quantization of the input voltage. With a 7B92 sweeping the whole X-axis in 5 ns, and the 7912 capturing 512 samples in that sweep, the 7912 performs the function of a 100 GSample/s A/D converter.

7912 Series Models

  • The R7912, introduced in September 1973 (Ref.1), achieved a bandwidth of 500 MHz with a 7A19 vertical amplifier plug-in.
  • The 7912AD (1978) had 500 MHz bandwidth and introduced a standard GPIB interface.
  • The 7912HB (1987) extended bandwidth to 750 MHz (using a 7A29P amplifier).
  • The LM7912 is a Tektronix R7912 modified by Lockheed Palo Alto Research Lab for extended bandwidth.

Project Staff

Links

Patents that may apply to 7912

Page Title Inventors Filing date Grant date Links
Patent US 3796910A Electron beam deflection system Ed Ritz 1972-08-04 1974-03-12
Patent US 3970889A Erasure means for charge storage device Hal Cobb 1973-11-21 1976-07-20