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home > Keithley 7075 Eight 1x12 Two-pole Multiplexer Card (Pre-Owned) > Keithley 7075 Eight 1x12 Two-pole Multiplexer Card (Pre-Owned)
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Keithley 7075 Eight 1x12 Two-pole Multiplexer Card (Pre-Owned)Keithley 7075 Eight 1x12 Two pole Multiplexer Card (Pre Owned) Key Features At A Glance Eight independent 112 two pole multiplexer banks (HI and GUARD) on a single card Expandable to 196 configuration by reconfiguring supplied bank to bank jumpers Maximum signal level of 110V DC 175V AC peak pin to pin at 1A switched (30VA DC 60VA AC resistive) Low offset specifications: <5V contact potential and <100pA offset current per contact pair Channel
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Keithley 7075 Eight 1x12 Two-pole Multiplexer Card (Pre-Owned)

Key Features At A Glance

  • Eight independent 1×12 two-pole multiplexer banks (HI and GUARD) on a single card
  • Expandable to 1×96 configuration by reconfiguring supplied bank-to-bank jumpers
  • Maximum signal level of 110V DC / 175V AC peak pin-to-pin at 1A switched (30VA DC / 60VA AC resistive)
  • Low offset specifications: <5µV contact potential and <100pA offset current per contact pair
  • Channel resistance <0.5Ω initial, rising to <1.5Ω at end of contact life
  • Eight 25-pin subminiature D connectors for bank connections plus one for row connection
  • Designed for use with Keithley Model 707A and 708A switching matrix mainframes

The Keithley 7075 is a general-purpose multiplex switching card that consists of eight banks of independent 1×12 multiplexer switching. Each bank provides two switched circuits (HI and GUARD) in a 2-pole Form A contact configuration, and the rows connect through factory-installed jumpers on the card to the general-purpose analog backplane of the host mainframe. The card is designed specifically for use with the Keithley 707A and 708A switching matrix mainframes.

The 7075 supports flexible multiplexer expansion. The factory-installed backplane jumpers provide the interconnect between cards for larger multiplexer configurations such as 1×24, 1×36, and beyond. Jumpers may be removed to isolate any bank from the backplane, and a single card can be reconfigured as a 1×96 multiplexer by installing the supplied bank-to-bank jumpers. This allows the same hardware to serve as eight isolated 1×12 multiplexers, a single high-channel-count 1×96, or anything in between.

Accessories Supplied

  • Jumpers for multiplexer expansion

Product Core & Specifications

Specification Value
Multiplex Configuration Eight 1x12 banks. Adjacent banks can be connected together. Jumpers can be removed to isolate any bank from the backplane.
Contact Configuration 2-pole Form A (HI, GUARD)
Connector Type 25-pin subminiature D connector, eight for bank connection, one for row connection
Maximum Signal Level - DC Signals 110V DC pin-to-pin, 1A switched, 30VA (resistive load)
Maximum Signal Level - AC Signals 175V AC peak pin-to-pin, 1A switched, 60VA (resistive load)
Common Mode Voltage 110V DC, 175V AC peak pin-to-pin or pin-to-chassis
Contact Life - Cold Switching 10^8 closures
Contact Life - At Maximum Signal Level 10^5 closures
Channel Resistance (per conductor) <0.50Ω initial, <1.5Ω at end of contact life
Contact Potential <5µV per contact pair (HI to GUARD)
Offset Current <100pA
Crosstalk (1MHz, 50Ω load) - Bank <-60dB
Crosstalk (1MHz, 50Ω load) - Channel <-60dB
Insertion Loss (1MHz, 50Ω source, 50Ω load) 0.1dB typical
Isolation - Bank >10^10Ω, <3pF
Isolation - Channel >10^10Ω, <5pF
Isolation - Differential (Configured as 1x12) >10^9Ω, <100pF nominal
Isolation - Differential (Configured as 1x96) >10^8Ω, <600pF nominal
Isolation - Common Mode (Configured as 1x12) >10^9Ω, <165pF nominal
Isolation - Common Mode (Configured as 1x96) >10^8Ω, <700pF nominal
3dB Bandwidth (50Ω load) - Configured as 1x12 30MHz typical
3dB Bandwidth (50Ω load) - Configured as 1x96 2.5MHz typical
Relay Settling Time <3ms
Important: Designed for use with Keithley Model 707A and 708A switching matrix mainframes.
Important: The Model 7075 is designed for use with the Keithley Model 707A and 708A switching matrix mainframes.
Important: A single card can be expanded to 1x96 by reconfiguring the supplied bank-to-bank jumpers.
Recommended pairing: when ordering the 7075, confirm whether you need the 7076-RMTC high-isolation row cable assembly, the 7076-CMTC high-isolation column/bank cable assembly, or the 7075-MTC standard row/column/bank cable assembly (all 3m / 10 ft) listed in the datasheet's Accessories Available section.

About this used unit

  • Warranty included
  • Functional verification included
  • Standard Calibration Upgrade Options: No Calibration Required, NIST Traceable, Z540.1 or ISO 17025 with Data, Z540.3 Guardbanding with Data.
  • Note that unnecessary accessories may not be included (contact Test Architect to confirm).

Please review the Manufacturer's Data Sheet to verify published specifications. Feedback on this webpage is always welcome — please reach out to your Test Architect at any time for questions or concerns. Thank you, we truly appreciate you being our customer.

Keithley 7075 Eight 1x12 Two-pole Multiplexer Card (Pre-Owned)

Item no : 14821967196
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