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Specifications
MATRIX CONFIGURATION:
8 rows by 12 columns.
CROSSPOINT CONFIGURATION:
2-pole Form A (HI, LO).
CONNECTOR TYPE:
BNC (HI, LO).
MAXIMUM SIGNAL LEVEL:
Any center or shield to any other center or shield:
42V peak, 1A switched.
DC SIGNALS:
30VA resistive load.
AC SIGNALS:
42VA resistive load.
COMMON MODE VOLTAGE:
42V peak, any terminal to chassis
CONTACT LIFE:
Cold Switching:
10
8
closures.
At Maximum Signal Level:
10
5
closures.
PATH RESISTANCE (per conductor):
< 0.5
Ω
, <1.5
Ω
at end of contact life.
CONTACT POTENTIAL:
<5
µ
V per crosspoint (HI to LO).
OFFSET CURRENT:
<100pA.
AC PERFORMANCE:
(Z
L
= Z
S
= 50
Ω
)
<100 kHz
<1 MHz
Insertion Loss
1
0.05 dB
0.1 dB
Crosstalk
–65 dB
–45 dB
1
Excludes loss caused by DC path resistance.
ISOLATION:
Path:
>10
10
Ω
, <75pF.
Differential:
>10
9
Ω
, <120pF.
Common Mode:
>10
9
Ω
, <200pF.
RELAY DRIVE CURRENT (per crosspoint):
28mA
RELAY SETTLING TIME:
<3ms.
ENVIRONMENT:
Operating:
0
°
–50
°
C, up to 35
°
C at 70% RH.
Storage:
–25
°
to 65
°
C.
Specifications are subject to change without notice.
A
B
C
D
E
F
G
H
1
2
3
4
5
6
7
8
9
10
11
12
ROW
COLUMNS
Backplane
Jumpers
(factory installed)
H
L
H
L
H
L
H
L
H
L
H
L
H
L
H
L
H
L
H
L
H
L
H
L
H
L
H
L
H
L
H
L
H
L
H
L
H
L
H
L
Model 7077
8x12 Isolated Coaxial Matrix
Summary of Contents for 7077
Page 16: ...Operation 2 3 Backplane Jumpers Figure 2 2 Simplified component layout...
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Page 62: ...Keithley Instruments Inc 28775 Aurora Road Cleveland Ohio 44139 Printed in the U S A...