7707 KEITHLEY, 7707 Datasheet - Page 2

• Manufacturer Part Number: 7707
• Description: KEITHLY MULTIPLEXER DIGITAL I/O MODULE
• Manufacturer: KEITHLEY

Specifications of 7707

• Accessory Type: Differential Multiplexer Module
• Features: 10-Channel W/ 32-Channel Digital I/O
• Rohs Compliant: NA
• For Use With: Keithley Models 2700, 2701, And 2750 DMM Data Acquisition Datalogging Systems

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Ordering Information
7701
accessories Supplied
Two mating IDC connectors for
ribbon cable
1.888.KEITHLEY
7701
Configurable for 32 channels of
differential measurements, with
up to 16 channels of 4-pole
measurements
Two female D-shell connectors
are standard for secure hook-up
and quick teardown
150V, 1a capacity for voltage
channels; 60W, 125Va
relay closures stored in
onboard memory
Screw terminal jumpers
allow user-configurable DMM
connections
w w w.keithley.com
External
Wiring Access
Multiplexer 1
Channel 1
(Channels 2–15)
Channel 16
Channel 17
(Channels 18–31)
Channel 32
Multiplexer 2
32-channel, Differential
Multiplexer Module
LO
LO
LO
LO
LO
LO
HI
HI
HI
HI
HI
HI
2-Pole (Open)
4-Pole (Closed)
Channel 33
(see Note)
(U.S. only)
NOTE: Channels 33–35 in this schematic refer to the designations
32-channel Differential
Multiplexer Module
The Model 7701 plug-in module offers 32
channels of 2-pole or 16 channels of 4-pole
multiplexer switching. Its 32 channels can be
configured for common-side 4-wire ohms. They
can also be configured as two independent
banks of multiplexers. It is ideal for RTD or
thermistor temperature applications.
Channel 34
Channel 35
(see Note)
(see Note)
The Model 7701 is rated for low-voltage applications.
When connecting the 7701 to the internal DMM via
the screw terminals, all other modules in the
mainframe must be derated to 150VDC or 150Vrms
(212V peak) for AC waveforms.
used for control and not actual available channels.
For more information, refer to the ROUTE:MULT command
section in the Model 2700, 2701, or 2750 User’s Manual.
Backplane
Isolation
Backplane
Isolation
HI
LO
HI
LO
Terminals
Terminals
Screw
Screw
User
Configurable
Screw
Terminals
A
HI
DMM Input
LO
HI
DMM Sense
LO
G R E A T E R
To
Internal
DMM
M E A S U R E
CaPaBILITIES
CHANNELS 1–32: Multiplex one of 32 2-pole or one of 16
INPUTS
MAXIMUM SIgNAL LEVEL: Any channel to Any Channel
SAFETY: Conforms to European Union Directive 73/23/
CONTACT LIFE (typ): >10
CONTACT RESISTANCE: <1W any path and additional 1W at
CONTACT POTENTIAL: <6µV per contact pair.
OFFSET CURRENT: <100pA.
CONNECTOR TYPE: 50-pin female D-shell, Channels 1–24.
ISOLATION BETwEEN ANY TwO TERMINALS: >10
ISOLATION BETwEEN ANY TERMINAL AND EARTH: >10
CROSS TALk (1MHz, 50W Load): <–35dB.
INSERTION LOSS (50W Source, 50W Load): <0.35dB below
COMMON MODE VOLTAgE: 300VDC or 300Vrms (425V peak)
gENEraL
32 CHANNELS: 32 channels of 2-pole relay input. All channels
RELAY TYPE: Latching electromechanical.
ACTUATION TIME: <3ms.
FIRMwARE: Specified for Model 2700 rev. B03, Model 2701 rev.
DMM CONNECTIONS: Screw terminals provide internal DMM
ENVIrONMENTaL
OPERATINg ENVIRONMENT: Specified for 0°C to 50°C.
STORAgE ENVIRONMENT: –25°C to 65°C.
wEIgHT: <0.52kg (1.16 lb).
7789
7790
7705-MTC-2
7707-MTC-2
7701-3Y-EW
1
4-pole signals into DMM. Configuration supports dual 1×16
independent multi plexers.
(1–32): 150V DC or 150Vrms (212V peak) for AC waveforms,
1A switched, 60W, 125VA maximum.
EEC EN61010-1, CAT I.
end of contact life.
<200pF.
<400pF.
1MHz. <3dB below 2MHz.
for AC waveforms between any terminal and chassis.
configur a ble to 4-pole.
A01, and Model 2750 rev. A01 or higher.
connections to channels 34 and 35 and connections to exter-
nal wiring access.
Minimum signal level 10mV, 10µA.
Supplied with male IDC ribbon cable connectors.
O F
aCCESSOrIES aVaILaBLE
C O N F I D E N C E
SErVICES aVaILaBLE
50/25 Pin Male D-Shell Solder Cup Connectors
50/50/25 Pin Female/Male D-Shell
IDC Connectors
50 Pin Male to Female DSUB Cable, 2m (6.6 ft).
25 Pin Male to Female DSUB Cable, 2m (6.6 ft).
1-year factory warranty extended to 3 years
from date of shipment
25-pin female D-shell, Channels 25–32.
>10
5
8
operations at max. signal level.
operations no load
Specified to 50% R.H. at 35°C.
1
.
9
W,
9
W,