Chat Live
Contact Us
sales@valuetronics.com
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.
| 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 |
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.
Model No
Keithley
Condition
Used
Manufacturer
Keithley
30+ Years in Business
Secure Payments
Sell Test Equipments
Knowledgeable Staff
On-site Lab
30+ Years in Business
Secure Payments
Sell Test Equipments
Knowledgeable Staff
On-site Lab
Request A Quote
