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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. | ||
About the M377, [[John Addis]] says: | |||
<blockquote> | |||
The M377 was a single channel plugin on a chip with 0 V common mode input and output voltages, | |||
excellent variable gain control, two four pole bandwidth limits, three outputs which could be separately inverted and turned on or off. | |||
It was the first wideband analog IC with level shift on chip (allowing 0 V common mode input and output and without PNP transistors), | |||
first wideband amplifier with any on-chip bandwidth limit selection, first to have more than two fixed gain settings (it has six), | |||
first to require only one transient response adjustment (no thermals), and the first to have a highly linear relationship between a control voltage and gain. It also had excellent overdrive recovery. | |||
''(See also [[M777|John's comments on the M777 successor]].)'' | |||
</blockquote> | |||
Later, the M377 and M777 were also used in several other Tek instruments. | |||
If the instrument has more than 300 MHz bandwidth at 1mV/div sensitivity, | |||
it can be assumed to be using the M777 which makes use of Tek's later IC fabrication process | |||
which provides transistor with higher Ft. | |||
The M377 and M777 are in the following instruments based on the specified bandwidth at 1mV/div: | The M377 and M777 are in the following instruments based on the specified bandwidth at 1mV/div: | ||
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== Links == | == Links == | ||