Keithley 7012-S

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Card Connections & Installation

3-13

Figure 3-12

wo-card system example (screw terminal connector card)

7001

7012-S

DUT Test Fixture

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DUT Test Fixture

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7001

Backplane

DUT

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DUT

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DUT

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DUT

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Note : Backplane

row jumpers for

both cards must

be installed.

Instruments

Backplane Row

Jumpers installed

Column Column

CARD 1 CARD 2

Equivalent Circuit

Row

Instrument

Row 1

Row 2

Row 3

Row 4

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Main Page

Table of Contents10
Introduction15
Features15
Warranty Information16
Manual Addenda16
Safety Symbols and Terms16
Specifications16
Unpacking and Inspection16
Inspection for Damage16
Shipping Contents16
Instruction Manual17
Repacking for Shipment17
Optional Accessories17
- Figure18
- Model 7012 Simplified Schematic18
- Figure19
- Model 7001 Analog Backplane19
Introduction18
Basic Matrix Configuration (4 × 10)18
- Figure20
- Single-Ended Switching Example20
Matrix Row Connections to Backplane20
Typical Matrix Switching Schemes20
Single-Ended Switching20
- Differential Switching Example21
- Figure21
- Figure 2-6 Sensing Example21
Differential Switching21
Sensing21
Figure 2-7 SMU Connections22
SMU Connections22
Matrix Expansion22
Two-Card Switching Systems22
Two Separate 4 × 10 Matrices23
- Figure23
- Figure24
- Narrow Matrix Example (4 × 20)24
- Figure 2-10 Wide Matrix Example (8 × 10)25
Figure 2-11 Mixed Card Type Example26
Mainframe Matrix Expansion26
Introduction28
Handling Precautions28
Connections28
- Figure29
- Figure 3-1 Backplane Row Jumpers29
- Figure30
- Typical Terminal Block Connections30
Backplane Row Jumpers29
Screw Terminal Connector Card29
Multi-Pin (Mass Termination) Connector Card31
- Cable Clamp for Screw Terminal Connector Card31
- Figure31
- Multi-Pin Connector Card Terminal Identification32
- Figure32
- Typical Round Cable Connection Techniques34
- Figure34
- Model 7011-MTR Connector Pinout35
- Figure35
- Model 7011-KIT-R (with Cable) Assembly35
Typical Connection Schemes36
Single Card System36
Two-Card System36
Single Card System Example (Multi-Pin Connector Card)37
Two-Mainframe System41
Model 7012 Installation and Removal41
Figure42
Introduction47
Power Limits47
Mainframe Control of Matrix Card47
Channel Assignments48
- Channel Status Display48
- Figure48
- Display Organization for Multiplexer Channels49
- Figure49
- Model 7012 Programming Channel Assignments49
Front Panel Control50
IEEE-488 Bus Operation50
Matrix Switching Examples51
Thick Film Resistor Network Testing51
- Figure52
- Four-Terminal Ohms Measurements52
- Figure53
- Voltage Divider Checks54
Transistor Testing56
Figure 4-7 Transistor Testing56
Figure 4-8 DC Parameter Checks58
Measurement Considerations59
Path Isolation59
Magnetic Fields60
Radio Frequency Interference60
Ground Loops60
Keeping Connectors Clean61
AC Frequency Response61
Introduction63
Handling and Cleaning Precautions63
Performance Verification64
Environmental Conditions64
Recommended Equipment64
- Verification Equipment64
Matrix Card Connections65
Channel Resistance Tests65
Offset Current Tests66
Contact Potential Tests68
Path Isolation Tests69
Differential and Common-Mode Isolation Tests71
Special Handling of Static-Sensitive Devices73
- Differential and Common-Mode Isolation Testing73
Principles of Operation74
Block Diagram74
ID Data Circuits75
Relay Control75
Relay Power Control76
Power-On Safeguard76
Troubleshooting77
Troubleshooting Equipment77
Troubleshooting Access77
Troubleshooting Procedure77
- Recommended Troubleshooting Equipment77
- Table77
Introduction79
Parts Lists79
Ordering Information79
Factory Service79
Component Layouts and Schematic Diagrams80

Keithley 7012-S - Page 40

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