Ambient Light Sensors

Digital Output; Operating Voltage 1.8-3.6 VDC; Operating Current 3 µA @1.8 V; Responsivity 3.7-6.5 kV/W Typ.; Max. Match 10%; Max. Noise 78.140 µVpp; FoV Horizontal 115°-147°; FoV Vertical 107°-130°; ADC Resolution 14, 15 bit; ADC Sensitivity 6.5 µV/CountExcelitas’ PYD and PYQ DigiPyro Series of dual- and four-element pyrodetectors (PIR), that are well established as the performance standard in motion detection, are now also available as low-power “DigiPyro” variants – featuring internal integrated circuitry to convert the element signals into a 14-bit digital output as well as an extremely low power consumption for battery-operated motion detection.With a mere 1.8 V power supply voltage and significantly reduced typical supply current of only 3 µA, PYD DigiPyro Series dual-element pyrodetectors are suitable for wall-mounted applications, while PYQ DigiPyro Series four-element PIRs are perfect for mounting at ceilings. The power requirements of the system level can be further reduced with the wake-up/sleep feature of this detector series, which also promotes power efficiency and extends service life. A selectable band-pass function and a pulse count option further compliment the full functionality of these devices.The PYD 2592 dual-element low-power DigiPyro PIR pyrodetector features two standard elements in parallel connection designed into a compact SMD (surface mount) housing with optical window. This design streamlines integration to the host system with significantly reduced form factor. The sensor includes a fully configurable motion detection unit with an interrupt feature to wake up a sleeping host system. This allows for lowest power consumptions and is therefore ideally suitable for battery operation in compact and mobile applications.An internal integrated circuitry converts the element signals into a 14 bit digital data output which can be viewed through the digital interface. And an internal diode provides output related to the pyro’s internal temperature. This makes the output signal into a 14 +14 bit signal.Excelitas’ PYD 1588 and PYD 1598 in TO-5 metal housing for high EMI immunity are real low-power enhanced DigiPyro pyrosensors. Both are fully integrated, dual-element detectors with two different window size options, offering added features and low-current power consumption for extended remote motion detection in battery operated devices.The latest version of Excelitas’ PYQ Series of four-element pyrodetectors, the PYQ 1548 low-power DigiPyro pyrodetector PIR, includes the enhanced functionality as known of the dual-element versions PYD 1588 and PYD 1598, so offering a quad-element DigiPyro with sleep mode, sensitivity adjust, bandwidth selection and window time. Most of the applications for such detectors are ceiling-mount sensing devices. PYQ 1548 PIRs are also available with smaller elements of 0.8 mm x 0.8 mm - suitable for compact lenses and short detection distances.The PYQ 1548 four-element DigiPyro pyrodetector configures all four PIR elements combined to one digital output with exceptional energy-efficiency. The user selects and sets individual functions. A single-wire connection with separate input pin allows setting of sensitivity, bandpass selection, pulse count and wake up. This provides full functionality of a complete PIR sensing device when all following circuitry is in sleep mode.  Part Number PYD 2592 PYD 1588 PYD 1598 PYQ 1548 PYQ 1548 Small Responsivity, min. 3.0 kV/W 3.3 kV/W 3.3 kV/W 5.4 kV/W 8.4 kV/W Responsivity, typ. 3.7 kV/W 4.0 kV/W 4.0 kV/W 6.5 kV/W 10.2 kV/W Match, max. 10 % Noise, max. 90 µVpp 78 µVpp 78 µVpp 160 µVpp 200 µVpp Noise, typ. 30 µVpp 20 µVpp 20 µVpp 40 µVpp 60 µVpp Operating Voltage 1.8 - 3.6 V   Supply Current, max. 3.5 µA   Supply Current, typ. 3 µA   FoV, Horizontal 147° 115° 130° 119° 140° FoV, Vertical 130° 107° 130° 119° 140° Filter Size 5.5 / 3.7  mm 4.6 / 3.4 mm 5.2 / 4.2 mm 4.9 / 4.9 mm ADC Resolution 14 bit 15 bit ADC Sensitivity 6.5 µV/count ADC Offset 8,000 bitcount Download Datasheet Datasheet PYD 2592 Datasheet PYD 158 Datasheet PYD 1598 Datasheet PYQ 15 Datasheet PYQ 1548 Smal  Applications: Ceiling- (Horizontal) and Wall-mount (Vertical) Sensing Applications; Long- and Mid-distance Motion Detection (With Lens); Energy Saving Applications (Light Management/Smart Home); Intrusion Alarms; Improved Pet Immunity Solutions (With Proper Lens); Battery OperationPlease note that Excelitas products are available from us only in Denmark, Finland, Iceland, Norway, and Sweden.