EVAL-ADPD6000Z Datasheet PDF - Analog Devices
Part Name
EVAL-ADPD6000Z
Description
Other PDF
no available.
PDF
page
89 Pages
File Size
1.9 MB
MFG CO.
Analog Devices
GENERAL DESCRIPTION
The ADPD6000 is a highly integrated analog front end (AFE) designed for measuring various vital signals.
The optical channel is designed as an optical transceiver, stimulating up to four light emitting diodes (LEDs) and measuring the return signal on up to four separate current inputs. The signal chain rejects signal offsets and corruption from asynchronous modulated interference, typically from ambient light, eliminating the need for optical filters or externally controlled dc cancellation circuitry.
FEATURES
► Optical channel
► 4 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 single-ended sensor
measurements
► 4 LED drivers, 2 of which can be driven simultaneously
► Flexible sampling rate from 0.004 Hz to 9 kHz using internal
oscillators
► SNR of transmit and receive signal chain: 117 dB (with off-chip
filtering)
► AC ambient light rejection: 78 dB up to 100 Hz
► 400 mA total LED peak drive current
► Individual ambient light rejection DAC at TIA input with 9-bit
control up to 300 μA
► Individual LED dc cancellation DAC at TIA input with 7-bit
control up to 190 μA
► ECG channel
► 0.75 μV rms RTI noise at diagnostic filter bandwidth (150 Hz)
► High input impedance: 3 GΩ
► Accepts up to 1.2 V of dc differential input range
► Common-mode rejection ratio: 116 dB
► Two-electrode and three-electrode configurations
► AC lead off detection and dc lead off detection
► BIA channel
► Low power, high accuracy excitation path
► Configurable output frequency up to 250 kHz
► Sine wave excitation with a 12-bit DAC
► High accuracy with large imbalance contact impedance
► Configurable receive filters with low noise design
► Complex impedance measurement engine
► Supports both external calibration and internal calibration
► SPI communications supported
► 640-byte FIFO
APPLICATIONS
► Wearable health and fitness monitors: heart rate, heart rate
variability, SpO2, body impedance analysis, hydration, cuffless
noninvasive blood pressure
► Home patient monitoring
► Industrial monitoring: particle and aerosol, gas, and conductivity
detection
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