Keithley 7076 Datasheet
7076 Two-Pole Matrix Card
Dual 4×12
The Model 7076 is a general purpose matrix switching card that consists of two independent 4×12 switch-
ing matrices. Each matrix has two switched circuits (HI and GUARD). The four row signal paths are connected through jumpers to the general purpose analog backplane in the Model 707A switching mainframe. This provides the interconnect between cards for column expansion (4×24, 4×36, etc.). The
jumpers can be removed to isolate any matrix. The columns of the two matrices on each card can be tied
together with on-card jumpers for expansion to an 8×12 matrix. Connections to the matrix are through
standard 25-pin D connectors for mass termination. There are two column connectors, one for each
bank, and one row connector.
MATRIX CONFIGURATION: Dual 4 rows by 12 columns. Also
configurable as 8 rows by 12 columns. Jumpers can be
• Low cost
• <5µV voltage offset
• <100pA offset current
• 15MHz bandwidth
• 110V, 1A signal levels
• Uses standard 25-pin
D connectors
Ordering Information
7076 Dual 4x12 Two-Pole
Extended warranty, service, and
calibration contracts are available
Use with Model 707A and 708A switching matrix mainframes
Accessories Supplied
Matrix Card
.
removed to isolate any row from the backplane.
CROSSPOINT CONFIGURATION: 2-pole Form A (HI, GUARD).
CONNECTOR TYPE: 25-pin subminiature D connector, two for
column connection, one for row connection.
MAXIMUM SIGNAL LEVEL:
DC Signals: 110V DC, 1A switched, 30VA (resistive load).
AC Signals: 175V AC peak, 1A switched, 62.5VA (resistive
load).
COMMON MODE VOLTAGE: 110V DC, 175V AC peak pin-to-pin
or pin-to-chassis.
CONTACT LIFE: Cold Switching: 10
At Maximum Signal Level: 10
PATH RESISTANCE (per conductor): <0.50Ω initial, <1.5Ω at
end of contact life.
CONTACT POTENTIAL: <5µV per crosspoint (HI to GUARD).
OFFSET CURRENT: <100pA.
CROSSTALK (1MHz, 50Ω load) <–50dB.
INSERTION LOSS (1MHz, 50Ω source, 50Ω load): 0.05dB
typical.
8
5
closures.
closures.
Jumpers for multiplexer
expansion.
123456789101112
A
ISOLATION:
Path: >10
Differential: >10
Common Mode: >10
3dB BANDWIDTH (50Ω load): 15MHz typical.
RELAY DRIVE CURRENT (per crosspoint): 28mA.
RELAY SETTLING TIME: <3ms.
EMC: Conforms to European Union Directive 89/336/EEC.
SAFETY: Conforms to European Union Directive 73/23/EEC
(meets EN61010-1/IEC 1010).
ENVIRONMENT:
Operating: 0° to 50°C, up to 35°C at 70% R.H.
Storage: –25° to 65°C.
7076-RMTC High Isolation Row Cable Assembly, 3m (10 ft)
7076-CMTC High Isolation Column/Bank Cable Assembly,
7075-MTC Row/Column/Bank Standard Cable Assembly,
COLUMNS
(To rear panel connector)
10
Ω, <5pF.
9
Ω, 120pF nominal.
9
Ω, 200pF nominal.
ACCESSORIES AVAILABLE
3m (10 ft)
3m (10 ft)
1.888.KEITHLEY (U.S. only)
SWITCHING & CONTROL
www.keithley.com
ROWS
(To rear
panel
connectors)
B
C
D
E
F
G
H
123456789101112
A GREATER MEASURE OF CONFIDENCE
COLUMNS
(To rear panel connectors)
Column
Jumpers
(User
installable;
to configure
as 8 x 12)
Backplane
Jumpers
(factory
installed)
Loading...