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July 2025
Keithley 7700
Keithley 7700, 20 Channels, Up to 50 MHz Bandwidth, Differential Multiplexer Module
Actual item may vary if no part number is provided on quote request.
✔ 2 Year Warranty Included
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✔ NIST Calibration Available
Andrew Gar**** Verified Buyer
" Amazing to work with and had my order within 1 week after purchasing with all NI certs and data that were needed. "
March 2025
Said Sai**** Verified Buyer
" Competent contact for highly specialized components. The support team is very knowledgeable. Many thanks for the help and the fast shipping! "
January 2025
Bob C**** Verified Buyer
" Jason was able to get our emergency situation taken care of quickly and professionally. "
May 2025
Gregg Flecki**** Verified Buyer
" Great service and great products. This is my 2nd time using Apex Waves, truly impressed. "
January 2025
Carol Zimme**** Verified Buyer
" Very responsive and helpful, competitive pricing. Good source! "
July 2025
Andrew Gar**** Verified Buyer
" Amazing to work with and had my order within 1 week after purchasing with all NI certs and data that were needed. "
March 2025
Said Sai**** Verified Buyer
" Competent contact for highly specialized components. The support team is very knowledgeable. Many thanks for the help and the fast shipping! "
January 2025
Bob C**** Verified Buyer
" Jason was able to get our emergency situation taken care of quickly and professionally. "
May 2025
Gregg Flecki**** Verified Buyer
" Great service and great products. This is my 2nd time using Apex Waves, truly impressed. "
January 2025
Keithley 7700 Differential Multiplexer Module
The Keithley 7700 is identified as a 20 channel differential multiplexer unit. It integrates automatic CJC with screw terminal connectivity. The supported frequency range for this module is 50 MHz. It routes multiple differential inputs directly into a compatible digital multi-meter. The channels 21 and 22 support maximum levels of 60 V DC. These channels allow 30 V rms signals with 3 A switching capacity. The maximum power rating is 60 W with 125 VA limit. The current channels are designed for higher current measurement paths. The 7700 multiplexer unit holds a typical contact life that exceeds 10 to power of 5 operations at maximum signal level. While thermocouple measurements, the open thermocouple detection remains enable. The module contains a minimum signal level of 10 mV and 10 μA. The contact resistance remains below 1 Ohms at end of contact life and contact potential is typically within ±500 nV per contact. The module has a maximum contact potential up to 1 μV per contact and its pair potential remains limited within ±500 nV contact.
The differential multiplexer unit has an offset current which is specified below 100 pA. The isolation between any two terminals exceeds 10^10 Ohms. The capacitance between any two terminals remains below 100 pF. The connector type uses screw terminals for secure wiring. The terminals accept up to #20 AWG wire size. The TL 23 screwdriver is included for terminal installation. It is equipped with latching relay for stable switching states. Actuation time is specified below 3 ms. The module has a current channels support up to 3 A capacity. It provides low insertion loss up to 50 MHz. The relay closures are stored in onboard memory for state retention. It ensures reliable signal routing and maintains measurement integrity across defined electrical limits.
The Keithley 7700 multiplexer module’s channel 1 through 20 support a peak signal level of 300 V DC. The switching capacity for channels is rated at 1 A with 60 W and 125 VA maximum. These electrical ratings define controlled switching performance within specified operating limits. The channel 21 and 22 are dedicated to multiplexing one of two 2 pole current signals into the DMM. This channel architecture enables structured routing of voltage and current measurement paths.
| Model | Keithley 7700 |
|---|---|
| Manufacturer | Keithley |
| Part Type | Differential Multiplexer Module |
| Differential Channels | 20 channels configurable as 2-pole or 4-pole |
| Current Channels | 2 channels dedicated for 2-pole current signals |
| Bandwidth | Up to 50 MHz |
| Max Signal Level (Channels 1–20) | 300 VDC or 300 Vrms, 425 V peak AC |
| Max Current (Channels 1–20) | 1 A switched |
| Power Rating | 60 W and 125 VA maximum |
| Offset Current | < 100 pA |
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