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7174A Keithley Switch Card

The 7174A is a switch card from Keithley.
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Additional Features:

  • Fast time to measurement
  • Low leakage (<100fA offset on all signal paths)
  • 2-pole switching, signal, and guard
  • 200V, 2A signal levels
  • Compatible with Model 707A and 708A Switching Matrix Mainframes
  • Designed for use with Keithley Model 4200-SCS, SMUs, 2635A and 2636A SourceMeter® Instruments, and Agilent B1500
  • Compatible with Models 707A, 707B, 708A, and 708B

The Keithley 7174A Low Current Matrix Card is designed for semiconductor research, development, and production applications requiring high quality, high performance switching of I-V and C-V signals. The Model 7174A is ideal for use with Keithley Models 2635A and 2636A SourceMeter Instruments, Model 4200-SCS, and the Agilent B1500. The card's configuration is 8 rows x 12 columns, with signal and guard switched at each crosspoint. Offset current has been reduced dramatically to <100fA on all pathways. Significant reductions in the level of parasitic capacitances in the Model 7174A help speed the process of making low level measurements.

The Model 7174A provides an optimum solution to switching the lower level signals common to today's semiconductor characterization tests. The card's low leakage and minimal dielectric absorption ensure that key device measurementscan be performed many times faster than with current switching technologies. Connections are 3-lug triax with the outer shell connected to chassis for safety and noise shielding. The center conductor is fully surrounded by the inner conducting shield allowing fully guarded measurements to be made with higher isolation and improved speed and accuracy.

For applications that require making connections to a large number of devices or test points, the Model 7174A matrix can be expanded with additional cards. On-card connectors are provided to connect the rows (column expansion) between other 7174A cards in adjacent slots of the Model 707A switching mainframe. Eight female-to-female cables are provided with each 7174A to simplify expansion. Up to six 7174A cards can be connected in a single 707A switching mainframe to form an 8x72 or 12x60 matrix.

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