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Rev. A

GENERAL

40 CHANNELS:

40 channels of 2-pole relay input.
All channels configurable to 4-pole.

2 CHANNELS:

2 channels of current only input.

RELAY TYPE:

Latching electromechanical.

ACTUATION TIME:

<3ms.

CAPABILITIES

CHANNELS 1-40:

Multiplex one of 40 2-pole or one of 20 4-pole signals

into DMM.

CHANNELS 41-42:

Multiplex one of 2 2-pole current signals into DMM.

INPUTS

MAXIMUM SIGNAL LEVEL:

Channels (1-40):

300V DC or rms, 1A switched, 60W, 125VA maximum.

Channels (41-42):

60V DC or 30V rms, 3A switched, 60W, 125VA maxi-

mum.

CONTACT LIFE (typ):

>10

operations at max signal level.

>10

operations cold switching.

CONTACT RESISTANCE:

Ω

at end of contact life.

CONTACT POTENTIAL:

<±500nV typical per contact, 1µV max.
<±500nV typical per contact pair, 1µV max.

OFFSET CURRENT:

<100pA.

CONNECTOR TYPE:

Screw terminal, #20 AWG wire size.

ISOLATION BETWEEN ANY TWO TERMINALS:

>10

Ω

, <100pF.

ISOLATION BETWEEN ANY TERMINAL AND EARTH:

>10

Ω

, <200pF.

CROSS TALK (10MHz, 50

Ω

Load):

<–40dB.

INSERTION LOSS (50

Ω

Source, 50

Ω

Load):

<0.1dB below 1MHz.

<3dB below 2MHz.

COMMON MODE VOLTAGE:

300V between any terminal and chassis.

ENVIRONMENTAL

OPERATING ENVIRONMENT:

Specified for 0°C to 50°C.
Specified to 80% R.H. at 35°C.

STORAGE ENVIRONMENT:

–25°C to 65°C.

WEIGHT:

0.5kg (1.1 lb).

Specifications subject to change without notice.

Channel 1

Channel 20

(Channels 2–19)

Channel 21

Channel 40

(Channels 22–39)

Channel 41

Channel 42

AMPS

Sense

Input

Channel 43

2-Pole (Open)

4-Pole (Closed)

(see Note)

To Model 2700
Backplane

Channel 45

(see Note)

Backplane

isolation

Channel 44

(see Note)

Backplane

isolation

NOTE

Channels 43–45 in this schematic
refer to the designations used for
control and not actual available channels.

For more information, refer to the
ROUTe:MULTiple command section
in the Model 2700 User’s Manual.

Channels 44 and 45 can be individually
controlled using ROUTe:MULTiple if the
module is not to be connected to the
internal DMM.

Card Sense

Card Input

7702 40-Channel Differential Multiplexer

Содержание 7702

Страница 1: ...Model 7700 7702 and 7703Multiplexer Modules User s Guide PA 695 Rev C 8 03 A G R E A T E R M E A S U R E O F C O N F I D E N C E...

Страница 2: ...CT INDIRECT SPECIAL INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OF ITS INSTRUMENTS AND SOFTWARE EVEN IF KEITHLEY INSTRUMENTS INC HAS BEEN ADVISED IN ADVANCE OF THE POSSIBILITY OF SUCH D...

Страница 3: ...that a shock hazard exists when voltage levels greater than 30V RMS 42 4V peak or 60VDC are present A good safety practice is to expect that hazardous voltage is present in any unknown circuit before...

Страница 4: ...electric shock and fire replacement components in mains circuits including the power transformer test leads and input jacks must be purchased from Keithley Instru ments Standard fuses with applicable...

Страница 5: ...s manual Not valid INSERTION LOSS 50 Source 50 Load w Internal DMM w o Internal DMM 0 1dB 1MHz 1MHz 3db 2MHz 50MHz Channels 24 and 25 are open Refer to ROUTe MULTiple command in 27xx User s manual COM...

Страница 6: ...200pF CROSS TALK 10MHz 50 Load 40dB INSERTION LOSS 50 Source 50 Load 0 1dB below 1MHz 3dB below 2MHz COMMON MODE VOLTAGE 300V between any terminal and chassis ENVIRONMENTAL OPERATING ENVIRONMENT Spec...

Страница 7: ...TERMINAL AND EARTH 109 400pF CROSS TALK 1 MHz 50 Load 40dB INSERTION LOSS 50 Source 50 Load 0 35dB below 1MHz 3dB below 2MHz COMMON MODE VOLTAGE 300V between any terminal and chassis ENVIRONMENTAL OPE...

Страница 8: ...KEITHLEY 1 888 543 5483 U S only or Telefax 440 498 2990 Instrument Products WARNING Before operating the Model 27xx with an accessory card verify that the card is properly installed and the mounting...

Страница 9: ...DUT but you must use multiple channel operation to close channels Screw terminal access Model 7700 and 7702 Turn the access screw to unlock and open the cover Press in the access screw to lock Figure...

Страница 10: ...ections AMP and LO common connections to the DMM are also provided Figure 2 Model 7700 screw terminal channel designations CH7 H L CH8 H L CH9 H L CH10 H L H L CH21 H L CH22 AMPS LO H L CH11 H L CH12...

Страница 11: ...crew terminal access located at the front of this document 3 Using a small flat blade screwdriver loosen terminal screws and install wires as desired Figure 3 shows connections to channels 1 and 2 4 R...

Страница 12: ...Color Description AMPS COM H L INPUT H L SENSE H L CH1 H L CH2 H L CH3 H L CH4 H L CH5 H L CH6 H L CH7 H L CH8 H L CH9 H L CH10 H L CH11 H L CH12 H L CH13 H L CH14 H L CH15 H L CH16 H L CH17 H L CH18...

Страница 13: ...ire connections AMP and LO common connections to the DMM are also provided Wiring procedure WARNING The information in this section is intended for qualified service personnel Do not attempt to perfor...

Страница 14: ...L CH8 H L CH9 H L CH10 H L CH11 H L CH12 H L CH13 H L CH14 H L CH15 H L CH16 H L CH17 H L CH18 H L CH19 H L CH20 H L H L CH21 H L CH22 H L CH23 H L CH24 H L CH26 H L CH28 H L CH32 H L CH34 H L CH36 H...

Страница 15: ...odel 7702 Connection log Make a copy of Table 2 and affix it to the cover of the Model 7702 Use this to record connection information and channel descriptions as needed TE122 TE121 Cable tie 2 places...

Страница 16: ...L CH23 H H CH3 L L CH24 H H CH4 L L CH25 H H CH5 L L CH26 H H CH6 L L CH27 H H CH7 L L CH28 H H CH8 L L CH29 H H CH9 L L CH30 H H CH10 L L CH31 H H CH11 L L CH32 H H CH12 L L CH33 H H CH13 L L CH34 H...

Страница 17: ...o perform this procedure unless qualified to do so Do not exceed the maximum specifications for the Model 7703 module NOTE When looking at the rear connectors of the Model 7703 module the connector on...

Страница 18: ...19 HI 19 9 LO 31 15 LO 43 29 LO 2 Sense LO 27 5 LO 39 19 LO 20 10 HI 32 16 HI 44 30 HI 4 Input HI 28 6 HI 40 20 HI 21 10 LO 33 16 LO 45 30 LO 6 Input LO 29 6 LO 41 20 LO 22 11 HI 34 25 HI 46 31 HI 18...

Страница 19: ...nection log Model 7703 Channel Color Description Description Color Channel INPUT H L SENSE H L CH1 H H CH17 L L CH2 H H CH18 L L CH3 H H CH19 L L CH4 H H CH20 L L CH5 H H CH21 L L CH6 H H CH22 L L CH7...

Страница 20: ......

Страница 21: ...www keithley com cn Japan Tokyo 81 3 5733 7555 Fax 81 3 5733 7556 www keithley jp Finland Helsinki 09 5306 6560 Fax 09 5306 6565 www keithley com Korea Seoul 82 2 574 7778 Fax 82 2 574 7838 www keithl...

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