Excelitas PYD 1794 Dual-Element Low-Profile DigiPyro shown in compact TO-39 housing
Excelitas PYD 1794 schematic
PART/ PYD 1794

PYD 1794 Dual-Element low profile DigiPyro

The PYD 1794 Dual-Element Digipyro Detector features two elements in series connection in the low-profile TO-39 Metal Housing with optical window. This Detector is part of the Excelitas DigiPyro family that feature internal integrated circuitry to convert the element signals into a 14-bit digital output.

The PYD 1794 DigiPyro is the low-profile version of the DigiPyro family. An internal integrated circuitry converts the sensing element signals into a 14 bit digital output. In addition, an internal diode provides output related to the Pyro internal temperature. This makes the output signal into a 14 +14 bit signal. For details see our links for application notes and the specification below.

Features

  • Integrated digitization
  • High-responsivity ceramic pyroelectric elements
  • Dual detector with 2 × 1 mm2 elements
  • 115° Field-of-view
  • Low-profile TO-39 metal housing for high EMI immunity
  • Best for advanced motion detection algorithms

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  • Long-distance motion detection (with lens)
  • Energy saving applications
  • Intrusion alarms
  • Horizontal mounting applications
ProductPhoto_IR_PYD-1794-schematic.jpg

  • Responsivity: 4.2 kV/W (typical)
  • Noise: 3 digits (typ), 12 digits (max)
  • Operation requirements: 2.7-3.6V / 10µA
  • Housing with optical window: TO-39
  • Field-of-view (horiz/vert): 115°/115°

  • Responsivity: 4.2 kV/W (typical)
  • Noise: 3 digits (typ), 12 digits (max)
  • Operation requirements: 2.7-3.6V / 10µA
  • Housing with optical window: TO-39
  • Field-of-view (horiz/vert): 115°/115°

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