M377: Difference between revisions

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77 bytes removed ,  22 September
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If the instrument has more than 300 MHz bandwidth at 1 mV/div sensitivity,  
If the instrument has more than 300 MHz bandwidth at 1 mV/div sensitivity,  
it can be assumed to be using the M777 which makes use of Tek's later IC fabrication process  
it can be assumed to be using the M777 which makes use of Tek's later IC fabrication process  
that provides transistor with higher f<sub>t</sub>.
that provides transistors with higher f<sub>t</sub>.


The M377 and M777  are in the following instruments based on the specified bandwidth at 1 mV/div:  
The M377 and M777  are in the following instruments based on the specified bandwidth at 1 mV/div:  
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TDS series oscilloscopes use a J lead package with a tall heat sink.  The package is soldered to the circuit board.
TDS series oscilloscopes use a J lead package with a tall heat sink.  The package is soldered to the circuit board.


The ceramic-packaged M377 die has the following Tek part numbers:
The 200 Ω output impedance of the version for the four-channel 11A34 (50 Ω resulting with four paralleled outputs) is achieved in the laser trimming stage of wafer production.
* [[165-2129-03]]
 
* [[165-2089-06]]
Tek part numbers:
* [[155-2089-05]] (11A33)
* [[165-2456-00]] (AM503A as [[M694]], M377 with relaxed DC balance specs)
* [[165-2456-00]] (AM503B as [[M694]], M377 with relaxed DCbalance specs)


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