Discrete-to-Digital / Drivers
Holt’s range of Discrete-to-Digital components provides a robust solution for sensing Open / Ground and 28V / Open discrete signals. These devices are typically used in simple sensing applications such as detecting open hatches or doors.
Device | Device Type | Description | Released | Datasheet | ||
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HI-84216 | 16−Channel Low-side driver | Programmable over Serial Peripheral Interface (SPI). Accurate Load Current Sensing with built-in ADC. | 2024 |
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HI-8400 | 4-channel Open/Ground or 28V/Open with galvanic isolation | Galvanically isolated 4-channel discrete-to-digital sensor with SPI interface. Galvanic isolation provides 800V isolation between each of the sensors and the logic interface. | 2018 |
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HI-8429 | 8-channel Open/Ground or 28V/Open | Octal discrete sensing device with individually configurable channels and SPI interface. Built-in lightning protection (DO-160G, Level 3). Includes sensor output interrupt pin and optional debounce circuit. | 2014 |
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HI-8435 | 32-channel Open/Ground or 28V/Open | Lightning protected 32-channel discrete sensing device with SPI interface. | 2013 |
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HI-8436 | Low threshold 32-channel Open/Ground or 28V/Open | Low Threshold lightning protected 32-channel discrete sensing device with SPI interface. | 2013 |
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HI-8437 | Low threshold 32-channel sensor | Low Threshold, lightning protected, 32-channel high impedance discrete sensing device with SPI interface. | 2013 |
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HI-8427 | 6-channel Open/Ground with galvanic isolation | Galvanically isolated 6-channel discrete-to-digital sensor with two GND/Open Sense Modes: 0 to 5V and 4.5V to 10.5V. 400V Galvanic isolation between sensor inputs and logic interface. | 2022 |
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HI-8428 | 8-channel Open/Ground or 28V/Open | Octal discrete sensing device with individually configurable channels and SPI interface. Built-in lightning protection (DO-160G, Level 3). Drop-in replacement for DEI1282. | 2014 |
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HI-8428-R | 8-channel Open/Ground or 28V/Open | Octal discrete sensing device with individually configurable channels and SPI interface. Drop-in replacement for DEI1284. | 2014 |
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HI-8470 | 16-channel Open/Ground or 28V/Open sensor inputs with ARINC 429 Transmitter | ARINC 429 Line Driver with Built-In Lightning Protection (DO-160G, Level 3) and 16-Channel Discrete-to-Digital sensor inputs. | 2013 |
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HI-8425 HI-8426 | Octal Open/Ground or 28V/Open | Lightning protected octal discrete sensing device with quad low-side drivers. | 2012 |
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HI-8430 HI-8431 | Octal Open/Ground or 28V/Open | Lightning protected octal discrete sensing device with quad high-side drivers. | 2012 |
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HI-84200 | Open/Ground, 6 channels Lightning Protected | Discrete input sensing device with internally lightning protected sensor inputs and tri-state outputs. | 2018 |
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HI-84230 | Open/Ground, 8 channels Lightning Protected | Discrete input sensing device with internally lightning protected sensor inputs and tri-state outputs. | 2018 |
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HI-84201 | Open/Ground, 6 channels Lightning Protected | Discrete input sensing device with internally lightning protected sensor inputs and tri-state outputs. | 2018 |
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HI-84231 | Open/Ground, 8 channels Lightning Protected | Discrete input sensing device with internally lightning protected sensor inputs and tri-state outputs. | 2018 |
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HI-84210 | 28V/Open, 6 channels Lightning Protected | Discrete input sensing device with internally lightning protected sensor inputs and tri-state outputs. | 2018 |
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HI-84240 | 28V/Open, 8 channels Lightning Protected | Discrete input sensing device with internally lightning protected sensor inputs and tri-state outputs. | 2018 |
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HI-84220 | Open/Ground, 8 Channels and 28V/Open, 8 Channels Lightning Protected | Discrete input sensing device with internally lightning protected sensor inputs and tri-state outputs. | 2018 |
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HI-8420 | Open/Ground 6 channels | Discrete input sensing device with tri-state outputs. | 2001 |
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HI-8423 | Open/Ground 8 Channels | Discrete input sensing device with tri-state outputs. | 2001 |
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HI-8421 | 28V/Open 6 Channels | Discrete input sensing device with tri-state outputs. | 2001 |
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HI-8424 | 28V/Open 8 Channels | Discrete input sensing device with tri-state outputs. | 2001 |
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HI-8422 | Open/Ground 8 Channels and 28V/Open 8 Channels | Discrete input sensing device with tri-state outputs. | 2001 |
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