The Keithley 7011-C is a Quad 1×10 Mux Switch Card engineered for signal routing in automated test and data acquisition systems. It integrates with Keithley’s 7001 and 7002 switch mainframes to deliver configurable multiplexing across four independent 1×10 2-pole banks. Banks combine flexibly into dual 1×20, 1×10 and 1×30, or single 1×40 multiplexer topologies. Two 7011-C cards cascade to form a 1×80 multiplexer, while outputs connect to 7012 row-expansion cards via the analog backplane. Removable jumpers enable bank isolation and backplane connectivity.
## Technical Specifications
**Switching Performance**
• Maximum DC signal: 110 V between any two pins, 1 A switched, 30 VA (resistive load)
• Maximum AC signal: 125 V rms, 175 V AC peak between any two pins, 1 A switched, 60 VA (resistive load)
• Common mode voltage: 175 V peak (any pin to chassis)
• Channel resistance: <1 Ω per conductor
• Contact potential: <1 µV per channel contact pair
• Offset current: 10⁹ Ω, 10⁹ Ω, 10⁹ Ω, 10⁹ Ω, 10⁹ Ω, 10⁹ Ω, <600 pF
• Crosstalk at 1 MHz (50 Ω load): <–40 dB (bank and channel)
• Insertion loss (50 Ω source/load): <0.1 dB below 1 MHz, <3 dB below 2 MHz
**Contact Life**
• Cold switching: 10⁸ closures
• At maximum signal levels: 10⁵ closures
## Key Features
• Four independent 2-pole multiplexer banks
• Flexible configuration from 1×10 to 1×40 topologies
• Cascadable for 1×80 multiplexer expansion
• Low contact potential and offset current for sensitive measurements
• 96-pin male DIN connector interface
## Typical Applications
• Automated test equipment (ATE)
• Multi-channel data acquisition
• Signal routing in laboratory environments
• Low-level analog switching
## Compatibility & Integration
Designed for Keithley 7001 and 7002 Switch Mainframes. Backplane outputs support row expansion via 7012 cards. Jumper-selectable bank isolation.
