DESCRIPTION

These dual SSRs (LH1544, dual 1 form A) are SPST normally open switches which can replace electromechanical relays in many applications. The relays provide a low-capacitance, high-voltage switch contact with high off-resistance and low switch-offset voltage. These characteristics, combined with high-speed actuation, result in an SSR which is ideal for small signal and DC instrumentation applications.
The relays are constructed by using a GaAlAs LED for actuation control and an integrated monolithic die for the switch output. The die is comprised of a photodiode array, switch-control circuity, and low-capacitance MOSFET switches.

FEATURES

• Dual channel, LH1541 type
• Low capacitance switch (5 pF)
• Isolation test voltage 5300 VRMS
• Extremely high off-resistance
• Load voltage 200 V
• Clean bounce free switching
• Low power consumption
• High reliability monolithic detector
• Compliant to RoHS Directive 2002/95/EC and in accordance to WEEE 2002/96/EC

APPLICATIONS

• Instrumentation
- Thermocouple switching
- Analog multiplexing
• Reed relay replacement
• Programmable logic controllers
• Data acquisition
• Test equipment