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Model 3722 Dual 1x48 High Density Multiplexer Specifications


Document number: SPEC-3722B

Specifications are subject to change without notice.

Dual 1×48 High Density Multiplexer with 96 differential channels, 300 Volts/1 Amp

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: 300 V DC or RMS, 1A switched (2A carry), 60W, 125VA.

COMMON MODE VOLTAGE: 300 V DC or RMS between any terminal and chassis.

VOLT-HERTZ LIMIT: 8 × 107

CONTACT LIFE: > 105 operations at max signal level.
< 108 operations no load.1

  Dual 1 × 482  Single 1 × 96 
Channel Resistance
(end of contact life) 
<1.5 Ω  <2.5 Ω
Contact Potential
(differential) 
 <±1 μV   <±2 μV
Offset Current   <100 pA  <100 pA
Isolation    
  Differential  5 × 109Ω, 200pF 5 × 109Ω, 400pF
  Bank-Bank     109Ω, 50pF  —
  CH –CH   109Ω, 50pF  109Ω, 50pF 
  Common mode  1010Ω, 200pF   1010Ω, 400pF 

Crosstalk CH-CH
300KHz:
1MHz:
20MHz:

 
<−65 dB
<−55 dB
<−30 dB


<−65 dB
<−55 dB
<−30 dB 
Bandwidth 25MHz 15MHz 

1 Minimum signal level 10 mV, 10 µA.
2 3706 mainframe with all DMM backplane relays disconnected. Maximum two card backplane relays closed.

GENERAL:

ACTUATION TIME: 4ms.

RELAY TYPE: Latching electromechanical.

RELAY DRIVE SCHEME: Matrix.

OPERATING ENVIRONMENT:
Specified for 0°C to 50°C.
Specified to 70% R.H. at 35°C

STORAGE ENVIRONMENT: −25°C to 65°C

WEIGHT: 2.5lb

SAFETY: Conforms to European Union Directive 73/23/EEC,EN61010-1

EMC: Conforms to European Union Directive 2004/108/EC,EN61326-1

Typical Scanning Speeds, switch only3

  Ch/Sec
Sequential scanning, signal channel, immediate trigger advance >120

Typical Scanning Speeds, with measurements into memory4

  Ch/Sec 
DCV (10V range) or 2W Ohms (1KΩ range)  >110
3 or 4 Wire RTD >100
4 Wire Ohms (1kΩ range) >100
ACV (10V, 400Hz range) >110

3 Scanning script local to mainframe, within same bank, break before make.
4 3706 mainframe with autorange off, limits off, DMM.autodelay=0, dmm.autozero=0, 4½ digits ( NPLC=0.006), for ACV dmm.detectorbandwidth=300,for OHMs dmm.offsetcompensation=off, dmm.opendetector=off. Scanning script local to mainframe, sequential scan within same bank (2 pole) or card (4 pole), and break before make switching.

differential channels

 

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Copyright © Tektronix. All rights reserved. Tektronix products are covered by U.S. and foreign patents, issued and pending. Information in this publication supersedes that in all previously published material. Specification and price change privileges reserved. TEKTRONIX and TEK are registered trademarks of Tektronix, Inc. All other trade names referenced are the service marks, trademarks or registered trademarks of their respective companies.

SPEC-3722 January 2008

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