7612D

The Tektronix 7612D is a digitizer that takes two vertical 7000-series plug-ins, typically the digitally programmable 7A16Ps.

Tektronix 7612D
200 MS/s sampler 7612D with 620 Monitor Produced from 1980 to 1988 Manuals Tektronix 7612D Manual 7912 and related digitizer docs Tektronix 7612D Programmable Digitizer Product Brochure Article in Electronics Design on 7612D (All manuals in PDF format unless noted otherwise)

Manuals – Specifications – Links – Pictures

It has a vertical bandwidth of 80 MHz. The sample rate is 200 Msamples/s. It uses a T7610 tube with an electron-bombarded semiconductor sensor as the digitizer, a form of scan converter.

Key Specifications

Sampling Clock	200 MHz ±0.0035%
Sampling Rate	1 S/s – 200 MS/s
Bandwidth	90 MHz
Resolution	8 bit
Effective number of bits	7.8 @ 300 kHz 6.0 @ 20 MHz 4.0 @ 80 MHz
Memory	2048 8-bit words/channel

Links

7612D @ KC0WOX

Documents Referencing 7612D

Document	Class	Title	Authors	Year	Links
Tekscope 1980 V12 N2.pdf	Article	New Products		1980	7854 • 468 • AA501 • SG505 • CG551AP • 1900 • 7612D
Handshake spring 1986.pdf	Article	Digital pulse-echo techniques for advanced composites	John L. Cline • R.L. Carlsen	1986	7A16P • 7612D • 624 • 4041 • 4907 • MI5010 • 50M30 • TM5003

Digitizing

The main advantage of the instrument is the capability of changing the sample rate during digitizing, see the returned raw data of the example pictured below.

Digitizing two waveforms on the 7612D...
...Channel A digitizes the waveform with a constant samplerate...
...On channel B the waveform is digitized with five different samplerates.

Pictures

7612D with 620 Monitor
Principle of tube
7612D digitizer tube
7612D digitizer tube
7612D digitizer tube
7612D digitizer tube
Digitizer Tubes
CPU Card
Timebase Card
Storage Card
Oscillator Board
Amplifier board top view
Amplifier board bottom view
Clock buffer board top view
Clock buffer board bottom view
Front panel top view
Front panel bottom view
GPIB (IEEE) board top view
GPIB (IEEE) board bottom view
MPU (CPU) board, later revision, top view
MPU (CPU) board, later revision, bottom view
Power supply
Power supply
Power supply
Power supply
Data storage board top view
Data storage board bottom view
Data storage board variant 1
Data storage board variant 2
Data storage board variant 3
Timebase board top view
Timebase board bottom view
Translator board top view
Translator board bottom view
Trigger board top view
Trigger board bottom view

Components

Some Parts Used in the 7612D

Part	Part Number(s)	Class	Description	Used in
155-0109-00	155-0109-00 • 155-0109-01	Monolithic integrated circuit	trigger	5B25N • 5B31 • 5B40 • 5B42 • 5B44 • 5S14N • 7B50A • 7B53A • 7B80 • 7B85 • 7B87 • 7B81P • 7B90P • 7S14 • 7612D • SC502 • SC503 • SC504
203-0175-90	203-0175-90	Monolithic integrated circuit	dual strobed voltage comparator	7612D
T7610	154-0784-00 • 154-0784-01	CRT	coding tube	7612D