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Holt Integrated Circuits, Inc.

HI-8428PST

In stock
SKU: HI-8428PST
$0.00

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The HI-8428 is an 8-channel discrete-to-digital sensor fabricated with Silicon-on-Insulator (SOI) technology designed to interface with a Serial Peripheral Interface (SPI).

Each input is individually configurable as either GND/Open or Supply/Open (28V/Open). Discrete input thresholds and hysteresis are compliant with Airbus ADB0100H specification. In GND/Open mode, thresholds are set at 4.5V/10.5V, and in Supply/Open mode at 6V/12V.

The part operates from a 3.3V (+/- 5%) digital supply and 12V - 16.5V analog supply. A 1mA wetting current is sourced from each SENSE input when GND/Open mode is selected for that pin. The wetting current serves to prevent dry relay or switch contacts.

All sense inputs are internally lightning protected to RTCA/DO160G, Section 22 Level 3 Pin Injection Test Waveform Set A(3 & 4), Set B (3 & 5A) and Set Z (3 & 5B) without the use of any external components.