7707 KEITHLEY, 7707 Datasheet - Page 3

• 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

•
•
•
•
•
•
Ordering Information
7702
1.888.KEITHLEY
7702
40 channels for general-
purpose measurements, plus 2
channels to measure current
Two- or four-wire measurement
Oversize screw terminal
connection blocks are standard
for easier connection
300V, 1a capacity for voltage
channels; 60W, 125Va
3a capacity for current channels
relay closures stored in
onboard memory
w w w.keithley.com
Car d Input
Car d Sense
Channel 1
(Channels 2–19)
Channel 20
Channel 21
(Channels 22–39)
Channel 40
Channel 41
Channel 42
40-channel Differential
Multiplexer Module
with Screw Terminals
LO
LO
LO
LO
LO
LO
LO
LO
HI
HI
HI
HI
HI
HI
HI
HI
3A
3A
4-Pole (Closed)
2-Pole (Open)
Channel 43
(see Note)
(U.S. only)
NOTE:
40-channel Differential
Multiplexer Module
The Model 7702 plug-in module offers 40 chan-
nels of 2-pole or 20 channels of 4-pole multiplexer
switching that can be configured as two inde-
pendent banks of multiplexers. The Model 7702
provides two additional protected channels for
current measurements. It is ideal for RTD, thermis-
tor, and thermocouple temperature applications.
Channel 44
Backplane
(see Note)
Channel 45
Backplane
(see Note)
isolation
isolation
Channels 43–45 in this schematic
refer to the designations used for
contr ol and not actual available channels.
For mor e information, refer to the
ROUT e:MULTiple command section
in the Model 2700, 2701, or 2750 User’s Manual.
Channels 44 and 45 can be individually
contr olled using ROUT e:MULTiple if the
module is not to be connected to the
internal DMM.
AMPS
Input
Sense
LO
LO
HI
HI
A
To Model 2700,
2701, or 2750
Backplane
G R E A T E R
M E A S U R E
with Screw Terminals
CaPaBILITIES
CHANNELS 1-40: Multiplex one of 40 2-pole or one of 20
CHANNELS 41-42: Multiplex one of 2 2-pole current signals
INPUTS
MAXIMUM SIgNAL LEVEL:
CONTACT LIFE (typ): >10
CONTACT RESISTANCE: <1W at end of contact life.
CONTACT POTENTIAL:
OFFSET CURRENT: <100pA.
CONNECTOR TYPE: Screw terminal, #20 AWG wire size.
ISOLATION BETwEEN ANY TwO TERMINALS: >10
ISOLATION BETwEEN ANY TERMINAL AND EARTH: >10
CROSS TALk (10MHz, 50W Load): <–40dB.
INSERTION LOSS (50W Source, 50W Load): <0.1dB below
COMMON MODE VOLTAgE: 300V between any terminal and
gENEraL
40 CHANNELS: 40 channels of 2-pole relay input.
2 CHANNELS: 2 channels of current only input.
RELAY TYPE: Latching electromechanical.
ACTUATION TIME: <3ms.
FIRMwARE: Specified for Model 2700 rev. A01, 2701 rev. A01,
ENVIrONMENTaL
OPERATINg ENVIRONMENT: Specified for 0°C to 50°C.
STORAgE ENVIRONMENT: –25°C to 65°C.
wEIgHT: 0.5kg (1.1 lb).
7702-3Y-EW
1
4-pole signals into DMM.
into DMM.
Channels (1-40): 300V DC or rms, 1A switched, 60W, 125VA
Channels (41-42): 60V DC or 30V rms, 3A switched, 60W,
<±500nV typical per contact, 1µV max.
<±500nV typical per contact pair, 1µV max.
<100pF.
<200pF.
1MHz. <3dB below 2MHz.
chassis.
and 2750 rev. A01 or higher.
Minimum signal level 10mV, 10µA.
O F
maximum.
125VA maximum.
C O N F I D E N C E
SErVICES aVaILaBLE
All channels configurable to 4-pole.
1-year factory warranty extended to 3 years
from date of shipment
>10
5
8
operations at max. signal level.
operations no load
Specified to 80% R.H. at 35°C.
1
.
10
W,
9
W,