Analogue / Linear / Mixed Signal ICs Intersil designs voltage chip for space systems

Analogue / Linear / Mixed Signal ICs Intersil designs voltage chip for space systems

2013/08/16

Intersil has designed its latest radiation hardened (rad-hard) voltage references to have low output noise.

The ISL71090SEH12 and ISL71090SEH25 voltage references are fabbed on an SOI-based PR40 process specified to provide Single Event Latch-up (SEL) immunity to ensure robust performance in heavy ion environments.

The ISL71090SEHx voltage references when used in analogue-to-digital conversion provide initial voltage accuracy of ±0.05%, and ±0.15% over the entire military temperature and radiation exposure ranges.

The temperature coefficient is 10ppm/deg C and output noise is specified at 2µVp-p at 2.5Vout, and 1µVp-p at 1.25Vout.

Input voltage range is 4V to 30V and supports multiple system power rails.

SET mitigation designed to use single output capacitor for LET threshold of 86MeV.cm2/mg.

The ISL71090SEHx voltage references (1.25V and 2.5V) are available now in 8-lead flatpack. The ISL71090SEH12EV1Z and ISL71090SEH25EV1Z evaluation boards offer two voltage options, 1.25V and 2.5V respectively, and measure the performance of the ISL71090SEHx voltage references.

www.intersil.com

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