ADPD4100 Hoja de datos - Analog Devices
Número de pieza
ADPD4100
componentes Descripción
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PDF
page
101 Pages
File Size
2.1 MB
Fabricante
Analog Devices
GENERAL DESCRIPTION
The ADPD4100/ADPD4101 operate as a complete multimodal sensor front end, stimulating up to eight light emitting diodes (LEDs) and measuring the return signal on up to eight separate current inputs. Twelve time slots are available, enabling 12 separate measurements per sampling period.
FEATURES
Multimodal analog front end
8 input channels with multiple operation modes for various
sensor measurements
Dual-channel processing with simultaneous sampling
12 programmable time slots for synchronized sensor
measurements
Flexible input multiplexing to support differential and
single-ended sensor measurements
8 LED drivers, 4 of which can be driven simultaneously
Flexible sampling rate from 0.004 Hz to 9 kHz using internal
oscillators
On-chip digital filtering
SNR of transmit and receive signal chain: 100 dB
AC ambient light rejection: 60 dB up to 1 kHz
400 mA total LED peak drive current
Total system power dissipation: 30 µW (combined LED and
AFE power), continuous PPG measurement at 75 dB SNR,
25 Hz ODR, 100 nA/mA CTR
SPI and I2C communications supported
512-byte FIFO size
APPLICATIONS
Wearable health and fitness monitors: heart rate monitors
(HRMs), heart rate variability (HRV), stress, blood pressure
estimation, SpO2, hydration, body composition
Industrial monitoring: CO, CO2, smoke, and aerosol detection
Home patient monitoring
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