Intersil has expanded its portfolio of radiation tolerant multiplexers with two single supply 5V devices. The 16-channel ISL71830SEH and 32-channel ISL71831SEH join Intersil’s 30V multiplexers, which have been onboard nearly every satellite and space exploration mission.
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The 5V multiplexers are claimed to provide data acquisition systems with the industry’s best electrostatic discharge (ESD) protection, and deliver lower RON and input leakage for reduced power consumption and higher signal integrity.
The multiplexers are said to deliver two times better performance than the competition in the most demanding environments by leveraging Intersil’s proprietary silicon on insulator process, which provides single event latch-up robustness in heavy ion environments. The devices’ 5kV ESD protection feature eliminates the need for external protection diodes on the input pins. In addition, both multiplexers have RON of 120O and propagation delays of less than 100ns to increase the overall performance and accuracy of telemetry signals processed and multiplexed into an ADC input.
The ISL71830SEH and ISL71831SEH multiplexers can be combined with the ISL71590SEH temperature sensor, ISL71090SEH25 voltage reference, and operational amplifiers such as the ISL70444SEH, ISL70244SEH, ISL70417SEH, ISL70218SEH, ISL70227SEH, ISL70419SEH to support a complete analogue signal chain with superior radiation tolerant performance.
The ISL71830SEH is available in a 28-lead ceramic flatpack package and the ISL71831SEH comes in a 48-lead ceramic quad flatpack. They are also available in die form, and two evaluation boards are available to evaluate device features and performance: 16-channel ISL71830SEHEV1Z and 32-channel ISL71831SEHEV1Z.
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