Keithley 7011-S

The Keithley 7011-S is a high-performance switch card designed for automated signal routing in multi-channel measurement systems. It provides four independent 1×10 2-pole multiplexer banks that can be configured into dual 1×20, 1×10 and 1×30, or single 1×40 multiplexer topologies. The 7001 mainframe automatically configures the 7011-S for 4-pole signals by combining channel pairs, enabling dual 1×10 or single 1×20 4-pole multiplexer operation. Two 7011-S cards can be linked via the backplane to form a 1×80 multiplexer, with outputs connectable to Model 7012 rows for further expansion.

– Technical Specifications

• Voltage Rating: 110 V DC or 125 V rms (175 V AC peak) between any two pins; 175 V peak common mode, any pin to chassis
• Current: 1 A switched; 30 VA (DC, resistive load) or 60 VA (AC, resistive load)
• Contact Resistance: Less than 1 Ω per conductor
• Contact Potential: Less than 500 nV to 5 µV per channel contact pair, depending on measurement configuration
• Offset Current: Less than 100 pA
• Actuation Time: 3 ms
• Isolation: Greater than 10⁹ Ω; capacitance ranges from 25 pF (bank) to 600 pF (common mode, 1×40 configuration)
• Crosstalk (1 MHz, 50 Ω load): Less than −40 dB (bank and channel)
• Insertion Loss: Less than 0.1 dB below 1 MHz; less than 3 dB below 2 MHz (50 Ω source and load)
• Relay Drive Current: 16 mA per relay
• Contact Life: 10⁸ closures (cold switching) or 10⁵ closures (maximum signal levels)

– Key Features

• Four independent 2-pole Form A (High, Low) multiplexer banks
• Flexible configuration for signal counts from 10 to 80 channels
• Screw terminal connectors (#16 AWG maximum, #22 AWG typical)
• Low contact potential and offset current for precision measurement
• Approximately 5 lbs per card

– Typical Applications

• Multi-channel DC and AC signal switching
• Automated test equipment (ATE) for component and circuit characterization
• Data acquisition system expansion
• Signal routing in precision measurement systems

– Compatibility & Integration

The 7011-S installs in Keithley 7001 and 7002 mainframes. Backplane linking of multiple cards and integration with the Model 7012 row expander enables scalable test configurations.