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Aerospace-defense
Date: 09-07-13

Rad-hardened precision 40V 19MHz op-amp offer best SET performance

Analog chip expert Intersil Corporation has introduced radiation hardened ISL70444SEH, a rail-to-rail input and output 40-Volt 19-MHz op amp offering low power and low offset voltage for aerospace, satellite, and data acquisition applications.

The key features include:
ISL70444SEH features low temperature drift and good output noise performance.
The device’s common mode input voltage range extends to the supply rails and the output voltage can swing rail-to-rail. It operates over a single supply range of 3V to 40V or from split supply rails ranging from +/-1.5V to +/-18V.
Good performance on Single Event Effects (SEE), Transient (SET), Burnout (SEB).Single-event transient (SET) testing has demonstrated output pulses of less than 5 microseconds on the amplifier output at a heavy ion linear energy transfer (LET) up to 86 MeV.cm2/mg.Single-event burnout (SEB) level matches the Intersil PR40 process’ absolute maximum rating of 42V at 86 MeV.cm2/mg. Very good SET performance helps in minimizing filtering and design analysis
It is rated at a total dose level of 300 krad(Si) at high dose rate irradiation and at 50 krad(Si) at low dose rate per MIL-STD-883. The part is acceptance tested on a wafer-by-wafer basis at both high and low dose rates.
Four monolithic low power op amps on one die provide maximum dynamic range.
Enhanced slew rate mode boosts rate to 100V/us (at 40V supply rail to supply rail), so it quickly reacts and tracks larger signals.

The ISL70444SEH is built using Intersil’s advanced PR40 process which uses dielectrically isolated substrates to achieve single-event latchup-free (SEL) performance. The ISL70444SEH is available in a hermetic flatpack package/pinout that is footprint-compatible with the most popular op amps in the space industry, which minimizes customer qualification times.

Pricing and Availability: The ISL70444SEH is available now in 14-lead hermetic ceramic flatpacks and operates over the -55 degrees C to 125 degrees C temperature range. Prototype prices start at $201.98 each in 1,000-unit quantities. For further specifications and datasheet visit: http://www.intersil.com/products/ISL70444SEH

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