7173-50 Keithley Switch Card

Additional Features:

• 200 MHz bandwidth
• <2ns rise time
• 50 Ohm impedance
• <15µV offset
• <200pA offset current
• 2-pole switching
• Matrix Configuration: 4 rows by 12 columns
• Crosspoint Configuration: 2-pole Form C with Row Isolator (HI, LO)
• Characteristic Impedance: 50Ω nominal
• Connector Type: BNC
• Maximum Signal Level: 30V, 0.5A switched, 10VA
• Common Mode Voltage: 42V peak (LO to Chassis)
• Contact Life: Cold Switching: 5×10.6 closures
• At Maximum Signal Level: 3×10.5 closures
• Path Resistance: HI: <2.0Ω initial, <4.0Ω at end of contact life; LO: <0.10Ω initial, <0.15Ω at end of contact life
• Contact Potential: <15μV per crosspoint (HI to LO)
• Relay Setting Time: <6ms
• Offset Current: <200pA (HI to LO)
• Rise Time (50Ω load and 50Ω source): <2ns.
• EMC: Conforms to European Union Directive 89/336/EEC.
• Safety: Conforms to European Union Directive 73/23/EEC (meets EN61010-1/IEC 1010)
• Operating Temperature: 0° to 50°C, up to 35°C at 70% R.H
• Storage: –25° to 65°C

The Keithley 7173-50 combines high frequency performance with excellent DC switching characteristics. It provides 200 MHz bandwidth in a 4X12 configuration. Offset voltage is <15µV per crosspoint, and offset current is <200pA. The combined AC and DC capabilities make it ideal for mixed signal applications where both high frequency and low level DC signals must be switched-for example, testing ADCs or DACs, which involves measuring both digital and analog signals.

The Model 7153-50 has a rise time of <2ns. It also features 2-pole switching at each cross point–HI and Shield–useful in 4-wire capacitance measurements where it is important to tie the shields of each connection together at the capacitance meter. BNC card connections are compatible with a wide variety of test equipment.

The Model 7173-50-CSEP expansion cables are four 25-inch cables and can expand a switching configuration to include more than one Model 7173-50. One cable is required to expand each row or column connection between adjacent cards. For example, connect the rows of two 7173-50 cards to create a 4×24 matrix or connect the columns to create an 8×12 matrix.