Keithley Adds 3731 Reed Relay Matrix Card

Keithley Instruments has expanded its series 3700 system switch/multimeter and plug-in card range with the addition of a plug-in switching card, the Model 3731 6x16 high-speed, reed relay matrix card. The model 3731 is a two-pole, six row x 16 column reed relay matrix card. High-speed dry reed relays (<0.5ms actuation times) make it a good choice for applications that demand a combination of high throughput and long switch life. The model 3731's relay contacts are rated for more than one billion no-load switch operations.

As a matrix card, the model 3731 offers users the flexibility to connect any of up to six differential instrument channels to any combination of 16 devices under test (DUTs). Any row can be connected to the series 3700 mainframe's analogue backplane by using the analogue backplane connection relays. This allows for easy matrix column expansion. A single model 3706 mainframe can support a matrix of up to six rows by 96 columns when six model 3731 cards are installed. By using the TSP-Link master/slave communication bus, multiple mainframes can be linked to create even larger switch configurations.

The analogue backplane also offers automated access to the high-performance multimeter built in to the model 3706 mainframe. The model 3731 uses two 50-pin male D-sub connectors for signal connections. A detachable model 3731-ST accessory is available for making screw terminal connections. The model 3731 is the latest addition to the growing family of plug-in switch and control cards for Keithley's series 3700 system switch/multimeter platform, adding to the line of high-density and general-purpose plug-in cards that accommodates a range of signals and topologies including multiplexer, matrix, and isolated switch functions.

The series 3700 offers scalable, high-performance switching and multi-channel measurements that are optimised for automated testing of electronic products and components. Keithley's series 3700 platform satisfies the demands of medium- to high-channel count applications, with its ability to control up to 576 multiplexer channels in a six-slot, 2U form factor. A high-performance integrated DMM option, the model 3706, provides fast, low-noise measurements with resolutions up to 71/2-digits.

Series 3700 system switch/multimeter instruments include a variety of capabilities optimised for high-speed testing, including LXI Class B compliance with IEEE 1588 time synchronisation; Keithley's embedded Test Script Processor (TSP) technology that offers system automation, throughput, and flexibility by bringing PC-like functionality into the instrument; and TSP-Link, a master/slave communication bus that simplifies expanding systems to keep pace with changing test demands. TSP-Link provides for integration with series 2600A system Sourcemeter instruments, for adding high-speed I-V source and measurement capabilities.

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