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Model 7701

Figure 14

Biasing and measuring DUT test system (multiple channel operation)

Multiplexer 1

Multiplexer 2

DUT

Ch 1

DUT

DMM

External

Source

External

Jumper

(1 of 4)

Multiple Channel Operation:

Open all Channels

Close Channel 133

Close Channel 135

Close Channel 101

Close Channel 111

Installation of the four screw

terminal jumpers is shown.

Note:

HI

LO

Ch 16

(Channels 2–15)

Ch 17

HI

LO

Ch 32

HI

LO

(Channels 18–31)

HI

LO

Sense

HI

LO

Input

Ch 33

(Closed)

Ch 35

Ch 34

HI

LO

HI

LO

HI

LO

Equivalent Circuit

DUT

1

DMM

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Summary of Contents for 7701

Page 1: ...c i a n sw i t ho v e r 1 5 0y e a r so f s p e c i a l i z a t i o n 9 0d a yw a r r a n t y 5d a yr i g h t o f r e t u r no na l l e q u i p me n t 1 3y e a r w a r r a n t i e sf o r n e wa n d p...

Page 2: ...s Guide PA 769 Rev A 3 01 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 The Model 7701 can be used with Keithley Models 2700 2701 and 2750 All references to the Models 2700 2750 also apply to...

Page 3: ...SEQUENTIAL 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 DAMAGES SUCH EXCLUDED DAMAGES SHALL IN...

Page 4: ...s 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 befor...

Page 5: ...components in mains circuits including the power transformer test leads and input jacks must be purchased from Keithley Instru ments Standard fuses with applicable national safety approvals may be use...

Page 6: ...D shell connectors on page 6 Wiring on page 7 Typical connections on page 12 Connection log on page 13 Operation on page 15 Channel assignments on page 15 System channel operation on page 15 Multiple...

Page 7: ...als to install the jumpers Card configuration schematic Figure 1 shows a simplified schematic diagram of the Model 7701 module As shown the Model 7701 has input channels that are grouped into two bank...

Page 8: ...he DUT to the DMM Backplane Isolation Backplane Isolation Screw Terminals External Wiring Access User Configurable Screw Terminals Multiplexer 1 Multiplexer 2 The Model 7701 is rated for low voltage a...

Page 9: ...is intended for qualified service personnel Do not make switching module connections unless qualified to do so To prevent electric shock that could result in serious injury or death adhere to the fol...

Page 10: ...he screw terminals as shown in Figure 3 Position the jumpers to allow clearance for the top cover and make sure the jumper wires do not come in contact with each other or other electrical conductors 3...

Page 11: ...entification for the female connector pins is provided in Table 1 Figure 4 Rear view Model 7701 pinouts DMM HI MUX 1 HI DMM SHI MUX 2 HI DMM SLO MUX 2 LO DMM LO MUX 1 LO Connects HI terminals of Multi...

Page 12: ...el 7701 Model 7789 50 25 pin solder cup connector kit Contains one male DB 50 and one male DB 25 solder cup connectors These connectors mate to the D shell connectors on the Model 7701 Table 1 D shell...

Page 13: ...Blue Ch 13 Lo 42 2 Red Ch 1 Lo 34 27 Violet Ch 14 Hi 26 3 Orange Ch 2 Hi 18 28 Grey Ch 14 Lo 10 4 Yellow Ch 2 Lo 2 29 White Ch 15 Hi 43 5 Green Ch 3 Hi 35 30 Black Ch 15 Lo 27 6 Blue Ch 3 Lo 19 31 Bro...

Page 14: ...47 Violet 48 Grey 49 White 50 Black 1 Brown HI Ch 1 LO 2 Red 3 Orange 4 Yellow HI Ch 2 LO HI Ch 3 LO 6 Blue 7 Violet 8 Grey 9 White HI Ch 5 LO 10 Black 11 Brown HI Ch 6 LO 12 Red 13 Orange 14 Yellow 1...

Page 15: ...Hi 4 20 Black 8 Grey Ch 28 Lo 17 21 Brown 9 White Ch 29 Hi 5 22 Red P24 24 10 Black Ch 29 Lo 18 23 Orange P12 12 11 Brown Ch 30 Hi 6 24 Yellow P25 25 12 Red Ch 30 Lo 19 25 Green P13 13 13 Orange Ch 31...

Page 16: ...ng must be rated for the maximum voltage in the system For example if 150V is applied to the front terminals of the DMM All matrix module wiring must be rated for 150V A connector cover must be instal...

Page 17: ...ure 9 4 Wire and RTD connections Figure 10 Voltage connections AC or DC Figure 11 Figure 9 2 Wire and thermistor connections Figure 10 4 Wire and RTD connections Column 1 HI LO Column 32 HI LO Columns...

Page 18: ...ions DC or AC Connection log Make a copy of Table 4 and affix it to the cover of the Model 7701 Use this to record connection infor mation and channel descriptions as needed Column 1 HI LO Column 32 H...

Page 19: ...P12 L P13 MUX 2 H P24 L P25 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 H H CH23 L L CH8 H H CH24 L L CH9 H H CH25 L L CH10 H H CH26 L L...

Page 20: ...tically closes to connect the measurement channel to the DMM Input With a 4 wire function selected system channels 1 through 16 can be closed When one of these chan nels is closed its paired channel c...

Page 21: ...closed You can also use the following command to open all channels ROUT OPEN ALL Open all channels Applications WARNING Multiple channel operation is required for the following applications Multiple c...

Page 22: ...27 27 and 35 DUT 4 4 and 35 DUT 12 12 and 35 DUT 20 20 and 35 DUT 28 28 and 35 DUT 5 5 and 35 DUT 13 13 and 35 DUT 21 21 and 35 DUT 29 29 and 35 DUT 6 6 and 35 DUT 14 14 and 35 DUT 22 22 and 35 DUT 30...

Page 23: ...programming ROUT MULT CLOS 101 4 Measure DUT 1 Front panel operation Take reading from display Remote programming DATA for continuous triggering mode READ for one shot triggering mode 5 Open channel 1...

Page 24: ...ls 11 through 20 Multiplexer 2 It also connects the DUT to the external source This channel must remain closed while testing DUT Opening channel 34 isolates the external source from the backplane of t...

Page 25: ...al Jumper 1 of 4 Multiple Channel Operation Open all Channels Close Channel 133 Close Channel 135 Close Channel 101 Close Channel 111 Installation of the four screw terminal jumpers is shown Note HI L...

Page 26: ...DMM Front panel operation Press CLOSE Select MULTI Key in 101 Press ENTER Remote programming ROUT MULT CLOS 101 5 Close channel 17 to connect DUT 1 to the external source Front panel operation Press C...

Page 27: ...e listed in Table 5 Ordering information To place an order or to obtain information concerning replacement parts contact your Keithley representa tive or the factory see back cover for addresses When...

Page 28: ...SILICON TG 389 Q5 N CHANNEL P CHANNEL POWER MOSFET TG 360 Q6 Q7 Q25 Q27 Q29 Q31 Q33 Q35 Q37 Q39 TRANS PNP SILICON TG 388 Q41 Q43 Q45 Q47 TRANS PNP SILICON TG 388 Q48 TRANS NPN SILICON TG 389 R1 RES 69...

Page 29: ...32 CHANNE JUMPER J 15 MASS TERM BRACKET 7709 303 2A MECHANICAL ASSEMBLY 7701 SCAN MECH 3 SCANNER PC BOARD ASSEMBLY 7701 100B SCANNER BOARD SURFACE MOUNT BOTTOM 7701 SCAN 1B SCANNER BOARD THRU HOLE 770...

Page 30: ...1CR50CR49 CR42 CR41 Q3 Q6 CR48 Q7 Q4 CR44 Q2 CR47 CR43 Q1 K43 K42 K41 TE1 TE2 K8 K25 K7 K26 K6 K27 K5 K28 K4 K29 K3 K30 K2 K31 K1 K32 K24 K9 K23 K10 K22 K11 K21 K12 K13 K19 K14 K18 K15 K16 K20 CR12 CR...

Page 31: ...layout Side 01 M3 M6 M2 Secondary Side Components Side 01 Note For component information see 7701 Product Structure R16 R18 R55 R14 R19 R11 R17 R112 R109 C20 C9 R108 C10 C11 C17 C25 C14 R2 R4 C2 C3 R...

Page 32: ...50 Load 35dB INSERTION LOSS 50 Source 50 Load 0 35dB below 1MHz 3dB below 2MHz COMMON MODE VOLTAGE 300VDC or 300Vrms 425V peak for AC waveforms between any terminal and chassis ENVIRONMENTAL OPERATIN...

Page 33: ...e 65 82110 Germering 089 84 93 07 40 Fax 089 84 93 07 34 GREAT BRITAIN Unit 2 Commerce Park Brunel Road Theale Berkshire RG7 4AB 0118 929 7500 Fax 0118 929 7519 INDIA Flat 2B Willocrissa 14 Rest House...

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