ADPD2211 데이터시트 - Analog Devices
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ADPD2211
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Analog Devices
GENERAL DESCRIPTION
The ADPD2211 is an optical sensor optimized for biomedical applications. Very low power consumption and near theoretical signal-to-noise ratio (SNR) are achieved by packaging an ultralow capacitance deep junction silicon photodiode operated in zero bias photoconductive mode with a low noise current amplifier. The ADPD2211 offers a typical 400 kHz bandwidth performance, which is well suited for use with pulsed excitation.
FEATURES
Ultrahigh detectivity photodetector
90 fA/√Hz (typical) ultralow noise floor
Signal-to-noise ratio (SNR) near shot noise limit
137 µA (typical) of supply current when active
(EE = 0 µW/cm2)
1 µA (typical) of supply current in standby
High speed, deep junction photodiode
Nominal linear output current: 240 µA (typical)
Flexible output configuration
Excellent pulse response
High ambient light rejection
Space-saving, 3 mm × 3 mm LFCSP package
APPLICATIONS
Heart rate, pulse oximetry monitoring
(photoplethysmography)
Battery-powered medical sensors
Chemical analysis
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