The Keithley 7035 9-Bank: 1×4 Multiplexer Card is a signal routing module for Keithley switching systems that provides nine independent multiplexer banks, each switching a single input to one of four outputs. This yields 36 individually controllable channels in a 2-pole Form A configuration, enabling flexible signal management in automated test and data acquisition systems. The card minimizes measurement error through low contact potential (<1 µV per channel contact pair), low offset current (1 GΩ bank-to-bank and channel-to-channel). Crosstalk remains below –40 dB at 1 MHz with a 50 Ω load, while insertion loss stays below 0.25 dB below 1 MHz and under 3 dB below 10 MHz in 50 Ω systems.
Technical Specifications
Multiplexer Configuration
• Nine independent 1×4, 2-pole multiplex banks
• 36 total individually switched channels
• 2-pole Form A (Hi, Lo) per channel
Electrical Characteristics
• Maximum signal: 60 VDC, 30 Vrms, 42 V peak between inputs or chassis; 1 A switched; 30 VA (resistive load)
• Contact life: 10⁸ closures (cold switching); 10⁵ closures (at maximum signal levels)
• Channel resistance: <1 Ω per conductor
• Contact potential: <1 µV per channel contact pair
• Offset current: 1 GΩ, 1 GΩ, <50 pF (channel-to-channel)
• Crosstalk: <–40 dB at 1 MHz (50 Ω load)
• Insertion loss: <0.25 dB below 1 MHz; <3 dB below 10 MHz
• Relay drive current: 16 mA per relay; 59 mA per channel (maximum 11 channels simultaneous)
Physical & Interface
• 96-pin male DIN connector
• Mass termination design (multi-pin connector card and relay card assembly)
• Shipping weight: ~5 lbs
Environmental
• Operating temperature: 0 °C to 50 °C
• Storage temperature: –25 °C to 65 °C
– Key Features
• Minimal signal distortion in sensitive measurement circuits
• Fast 3 ms actuation across all channels
• High contact life for production and reliability testing
• Compact relay card assembly with integrated termination
– Compatibility & Integration
Designed for integration into Keithley switching systems. Compatible with the 7011-KIT-R connector kit, which includes a 96-pin female DIN connector. Meets EMC standards EN 55011, EN 50082-1, EN 61000-3-2/3-3, and FCC Part 15 Class B; safety compliance with EN 61010-1 and UL 3111-1.
