Datasheet

DIGITAL MULTIMETERS & SYSTEMS
A Greater Measure of Confidence
www.keithley.com
1.888.KEITHLEY
(U.S. only)
Ordering Information
7710 20-channel Solid-
state Differential
Multiplexer Module
• 20 channels for general purpose
measurements
• Scanning speeds of up to 500
channels/second
• High speed production or ATE
testing up to 500 channels/s
• Long lifetime solid state relay
• Removable screw terminals for
simple, quick connections
CAPABILITIES
CHANNELS 1–20: Multiplex one of 20 2-pole or one of 10
4-pole signals into DMM.
INPUTS
MAXIMUM SIGNAL LEVEL: Any channel to any channel (1–20):
60VDC or 42V rms, 100mA switched, 6W, 4.2VA maximum.
COMMON MODE VOLTAGE: 300VDC or 300Vrms (425V peak)
maximum between any terminal and chassis.
RELAY LIFE (TYP): >10
5
operational hours max. signal level or
10
10
operations (guaranteed by design).
RELAY DRIVE CURRENT: 6mA per channel continuous, 25mA
during initial pulse.
CHANNEL RESISTANCE (per conductor): <5W.
CONTACT POTENTIAL: <1µV per pair.
OFFSET CURRENT: <3nA @ 23°C (per channel); additional
0.13nA/°C >23°C.
CONNECTOR TYPE: 3.5mm removable screw terminals, #20
AWG wire size.
ISOLATION BETWEEN ANY TWO TERMINALS: >10
9
W,
<100pF.
ISOLATION BETWEEN ANY TERMINAL AND EARTH: >10
9
W,
<100pF.
CROSSTALK (CH-CH, 300kHz, 50W Load): <–40dB.
INSERTION LOSS (50W Source, 50W Load): <0.5dB below
100kHz, <3dB below 2MHz.
TEMPERATURE ACCURACY USING INTERNAL CJC: 1°C for
K type (see mainframe specifications for details).
GENERAL
CHANNELS: 20 channels of 2-pole relay input. All channels
configurable to 4-pole.
RELAY TYPE: Solid State Opto-Coupled FET.
ACTUATION TIME: <0.5ms (100mA load).
FIRMWARE: Specified for Model 2700 Rev. B05, Model 2750
Rev. A04, and Model 2701 Rev. A01.
ENVIROMENTAL
OPERATING ENVIRONMENT: Specified for 0°C to 50°C.
Specified for 80% R.H. at 35°C.
STORAGE ENVIROMENT: –25° to 65°C.
WEIGHT: 0.45kg (1 lb).
The Model 7710 plug-in module offers 20 chan-
nels of 2-pole or 10 channels of 4-pole relay
input that can be configured as two independent
banks of multiplexers. The relays are solid state,
providing long life and low maintenance. Solid-
state relays usually have 100 times longer life
than mechanical relays. It is ideal for long-term
data logging applications as well as for demand-
ing high-speed applications.
SCANNING SPEEDS (see mainframe specifications for details)
Multiple Channels, Into Memory Channels/s
2700 2701 2750
7710 Scanning DCV 180/s 500/s 230/s
7710 Scanning DCV with Limits or Time Stamp On 170/s 500/s 230/s
7710 Scanning DCV alternating 2WW 45/s 130/s 60/s
Multiple Channels, Into and Out of Memory to GPIB
or Ethernet
Channels/s
2700 2701 2750
7710 Scanning DCV 145/s 440/s 210/s
7710 Scanning DCV with Limits or Time Stamp On 145/s 440/s 210/s
7710 Scanning DCV alternating 2WW 40/s 130/s 55/s
Card Source
Card Sense
Channel 1
Channel 21
Channel 22
Channel 10
Channel 11
Channel 20
HI
LO
HI
LO
HI
LO
HI
LO
HI
LO
HI
LO
HI
LO
HI
LO
To Mainframe
Backplane
Channel 23
2-Pole (closed)
4-Pole (open)
Cold Junction
Ref 3x
Cold Junction
Ref 3x
ACCESSORIES AVAILABLE
7401 Type K Thermocouple Wire, 30.5m (100 ft).
SERVICES AVAILABLE
7710-3Y-EW 1-year factory warranty extended to 3 years
from date of shipment
7710
20-channel Solid-state
Differential Multiplexer
with Automatic CJC
Use with Integra Series mainframes: 2700, 2701, 2750 Use with Integra Series mainframes: 2700, 2701, 2750