HP 3457A Service Manual page 29

General Information
Table
1-1.
Specifications
PLUG-IN OPTION
44491A Armature Re1 ay Mu1 ti
pl
exer Assembly (Cont9d)
DC ISOLATION:
C h a n n e l s 0
-
7 ( 4 0 ° c , 95% R e l a t i v e H u m i d i t y ) 1 0 ' ' Ohms
C h a n n e l s 8 and 9 ( 4 0 ° c , 95% R e l a t i v e H u m i d i t y )
l o 9
Ohms
C h a n n e l s 0
-
7 ( 4 0 ° c , 60% R e l a t i v e H u m i d i t y ) 1 0 ' Ohms
C h a n n e l s 8 and 9 ( 4 0 ° c , 60% R e l a t i v e H u m i d i t y ) 1 0 " Ohms
AC ISOLATION:
C h a n n e l s 0
-
7 C l o s e d : 150 pF
C h a n n e l s 0
-
7 Open: 10 pF
LO t o C h a s s i s : 420 pF
PLUG-IN OPTION
44492A Reed Re1 ay
Mu1
ti
pl
exer Assembly
INPUT CHARACTERISTICS:
Ten t w o - w i r e r e e d r e l a y c h a n n e l s .
MAXIMUM VOLTAGE: ( T e r m i n a l t o T e r m i n a l o r T e r m i n a l t o C h a s s i s )
125 v o l t s peak t o peak.
THERMAL OFFSET:
3 m i c r o v o l t s
RELAY L I F E :
l o 7
o p e r a t i o n s a t maximum l o a d (125 VAC peak t o p e a k ) .
CLOSED CHANNEL RESISTANCE: ( e n d o f r e l a y L i f e )
< 4 ohms
MAXIMUM SWITCHING AND MEASUREMENT SPEED:
300 c h a n n e l s / s e c o n d
ADJACENT CHANNEL CROSSTALK: ( C h a n n e l s t e r m i n a t e d i n t o 50 ohms)
- 4 0 d b @ 100KHz
DC ISOLAT
Channe
Channe
AC ISOLAT
Channe
O N :
s 0
-
9 ( 4 0 ° c , R e l a t i v e H u m i d i t y 95%)
l o 9
Ohms
s 0 - 9 ( 4 0 ° c , 60% R e l a t i v e H u m i d i t y ) 10 Ohms
O N :
s 0
-
9 C l o s e d : 200 pF
C h a n n e l s 0
-
9 Open: 15 pF
LO t o C h a s s i s : 420 pF
44492A o p e r a t i o n i s n o t s p e c i f i e d f o r t h e 30 Ohm r a n g e o r f o r f r e q u e n c i e s above 100 KHz.