Keithley 7072 Instruction Manual - 7072 8
7072 8
×
12 Semiconductor Matrix Card
LOW-CURRENT
GENERAL-PURPOSE
C-V
(ROWS A - B)
(ROWS C - F)
(ROWS G - H)
CROSSPOINT
2-pole Form A
2-pole Form A
1-pole Form A,
CONFIGURATION:
Common Guard
OFFSET CURRENT:
a<1 pA
<20 pA
<20 pA
PATH ISOLATION:
Resistance:
>10
13
Ω
>10
12
Ω
>10
12
Ω
Capacitance (nominal):
0.4 pF
1 pF
0.6 pF
CROSSTALK
1 MHz, 50
Ω
load (typical):
<–50 dB
<–40 dB
<–50 dB
3dB BANDWIDTH (typical),
50
Ω
Load:
15 MHz
8 MHz
5 MHz
RELAY DRIVE CURRENT
(per crosspoint):
40 mA
60 mA
80 mA
MATRIX CONFIGURATION: 8 rows by 12
columns.
CONNECTOR TYPE: 3-lug triaxial (Signal,
Guard, Chassis).
MAXIMUM SIGNAL LEVEL: 200V, 1A
carry/0.5A switched, 10VA peak (resistive
load).
COMMON MODE VOLTAGE: 200V maxi-
mum between any 2 pins or chassis.
CONTACT LIFE: Cold Switching: 10
7
clo-
sures. At Maximum Signal Level: 10
5
clo-
sures.
PATH RESISTANCE (per conductor): <1
Ω
initial, <3.5
Ω
at end of contact life.
CONTACT POTENTIAL: <40µV per cross-
point (Signal to Guard).
RELAY SETTLING TIME: <15ms.
INSERTION LOSS (1MHz, 50
Ω
source, 50
Ω
load): 0.1dB typical.
EMC: Conforms to European Union Directive
89/336/EEC.
SAFETY: Conforms to European Union Directive
73/23/EEC (meets EN61010-1/IEC 1010).
ENVIRONMENT:
OFFSET CURRENT and PATH ISOLA-
TION Specifications: 23°C, <60% R.H.
Operating: 0° to 50°C, up to 35°C at 70%
R.H.
Storage: –25° to +65°C.
ACCESSORIES SUPPLIED: Instruction
manual and four SMB expansion cables
(C54-1).
ACCESSORIES AVAILABLE:
7078-TRX-BNC: 3-Lug Triax to BNC
Adapter
7078-TRX-T:
3-Lug Triax Tee Adapter
7078-TRX-3: 3-Lug
Triax Cable,
0.9m (3 ft)
7078-TRX-10:
3-Lug Triax Cable,
3m (10 ft)
7078-TBC:
3-Lug Female Triax Bulk
head Connector with
Cap
7078-CSHP:
Cable Set to connect
7072 to HP 4145
1
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1
H G C
H G C
H G C
H G C
H G C
H G C
H G C
H G C
H G C
H G C
H G C
H G C
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2
H
G
C
H
G
C
H
G
C
H
G
C
H
G
C
H
G
C
H
G
C
H
G
C
Low I
Paths
General
Purpose
Paths
C-V
Paths
User
connections
and backplane
expansion