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M377: Difference between revisions
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Its initial use was in the [[11A16]], [[11A32]], [[11A33]], [[11A34]] and [[11A52]] plug-ins. | Its initial use was in the [[11A16]], [[11A32]], [[11A33]], [[11A34]] and [[11A52]] plug-ins. | ||
It was fabricated using Tek's [[SH3]] process. | It was fabricated using Tek's [[SH3]] process. | ||
John Addis largely designed the M377, but other engineers provided important parts. | |||
Addis' contributions were particularly the use of feedback circuits, the fast overdrive recovery, | |||
DC level shift, bandwidth limit circuits, and use of an internal bandgap reference. | |||
The wired OR outputs that allowed multichannel operation were [[Cliff Baker]]’s suggestion. | |||
Much of the logic on the chip was designed by [[Gary Polhemus]]. | |||
[[Art Metz]] supplied the input stage switched emitter circuitry that made it stable at 50mV/div. | |||
The high frequency gain control via current control of the output stage was originally an idea of [[Wink Gross]] | |||
that Addis heard about from someone else and implemented. | |||
[[Pat Quinn]] provided the zero input impedance for the high frequency adjust circuit. | |||
About the M377, [[John Addis]] says: | About the M377, [[John Addis]] says: | ||