Datasheet

1.888.KEITHLEY (U.S. only)
www.keithley.com
9
SWITCHING AND CONTROL
A GREATER MEASURE OF CONFIDENCE
To Series 3700A Mainframe Analog Backplane
MULTIPLEXER CONFIGURATION: Two independent 1×48 2-pole multiplexers. Banks can be
connected together via relays creating a single 1×96 multiplexer. Banks can be isolated from the
backplane by relays. Card can be configured for 2- and 4-wire mode.
CONTACT CONFIGURATION: 2 pole form A.
CONNECTOR TYPE: Two 104 pin female D-shells.
MAXIMUM SIGNAL LEVEL: 300V DC or RMS, 1A switched (2A carry), 60W, 125VA.
COMMON MODE VOLTAGE: 300V DC or RMS between any terminal and chassis.
VOLT-HERTZ LIMIT: 8×10
7
.
CONTACT LIFE: >10
5
operations at maximum signal level. >10
8
operations no load.
1
Dual 1×48
2
Single 1×96
Channel Resistance (end of contact life)
<1.5
W <2.5 W
Contact Potential (differential)
<±1 μV <± 2 μV
Offset Current
<100 pA <100 pA
Isolation
Differential
5×10
9
W , 200 pF 5×10
9
W , 400 pF
Bank-Bank
10
9
W , 50 pF —
Channel-channel
10
9
W , 50 pF 10
9
W , 50 pF
Common Mode
10
10
W , 200 pF 10
10
W , 400 pF
Crosstalk Channel-channel
300kHz
<–65 dB <–65 dB
1MHz
<–55 dB <–55 dB
20MHz
<–30 dB <–30 dB
Bandwidth
25 MHz 15 MHz
TYPICAL SCANNING SPEEDS:
Switch Only
3
: Sequential scanning, single channel, immediate trigger advance: >120 ch/s.
With Measurements Into Memory
4
:
DCV (10V range) or 2W Ohms (1k
W range): >110 ch/s.
3- or 4-Wire RTD: >100 ch/s.
4-Wire Ohms (1k
W range): >100 ch/s.
ACV (10V, 400Hz range): >110 ch/s.
GENERAL
ACTUATION TIME: 4ms.
RELAY TYPE: Latching electromechanical.
RELAY DRIVE SCHEME: Matrix.
OPERATING ENVIRONMENT: Specified for 0° to 50°C. Specified to 70% R.H. at 35°C.
STORAGE ENVIRONMENT: –25° to 65°C.
WEIGHT: 2.5 lbs.
SAFETY: Conforms to European Union Directive 73/23/EEC, EN61010-1.
EMC: Conforms to European Union Directive 2004/108/EC, EN61326-1.
NOTES
1. Minimum signal level 10mV, 10μA.
2. 3706A mainframe with all DMM backplane relays disconnected. Maximum two card backplane relays closed.
3. Scanning script local to 3706A mainframe, within same bank, and break before make switching.
4. 3706A mainframe with autorange off, limits off, dmm.autozero=0, dmm.autodelay=0, 4½ digits (NPLC=.006),
for ACV dmm.detectorbandwidth=300, for OHMs dmm.offsetcompensation=off. Scanning script local to main-
frame, sequential scan within same bank (2 pole) or card (4 pole), and break before make switching.
3722
Dual 1×48, High Density, Multiplexer Card
96 differential channels, 300 Volts/1 Amp
Model 3722 specifications Model 3722 specifications