HP 98640A Installation And Reference Manual page 91

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A
Analog Input Interface
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PACDA C18
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________________________________________________________
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12 EN 15
IR4~1~5~------------
__ --------------------------__
--------------~
IR5~1~8~------------------------------------------------------~
IR6~1w7~------------------------------------------------------~~
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C7 BUS AMP
C 1 BUSAMP
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4
- - - - I
A r - -
C23 LACH
0~2
GROUND PLANE FOR THE ANALOG
PORTION OF THE CIRCUIT.
GROUND PLANE THAT EX~STS OUTSIDE
THE ANALOG PORTION OF THE CIRCUIT.
A
Figure 7-4. A -to-D card schematic diagram, sheet 1 of 3.
7-5/7-6