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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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ADPD4200 датащи(PDF) 1 Page - Analog Devices |
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ADPD4200 датащи(HTML) 1 Page - Analog Devices |
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1 / 93 page  Data Sheet ADPD4200 Multimodal Sensor Front End Rev. 0 DOCUMENT FEEDBACK TECHNICAL SUPPORT Information furnished by Analog Devices is believed to be accurate and reliable "as is". However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. Specifications subject to change without notice. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarks and registered trademarks are the property of their respective owners. FEATURES ► Multimodal analog front end ► 4 input channels with multiple operation modes to accommodate the following measurements: PPG, ECG, EDA, impedance, and temperature ► Dual-channel processing with simultaneous sampling ► 12 programmable time slots for synchronized sensor measure- ments ► Flexible input multiplexing to support differential and single- ended sensor measurements ► 4 LED drivers, which can be driven simultaneously ► Flexible sampling rate from 0.004 Hz to 9 kHz using internal oscillators ► On-chip digital filtering ► SNR: 105 dB (100 kΩ TIA gain, 100 Hz ODR, 80 pulses, CPD = 70 pF, 0.5 Hz to 10 Hz bandwidth) ► 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 communications supported ► 512-byte FIFO size APPLICATIONS ► Wearable health and fitness monitors: heart rate monitors (HRMs), heart rate variability (HRV), stress, blood pressure esti- mation, SpO2, hydration, and body composition ► Industrial monitoring: CO, CO2, smoke, and aerosol detection ► Home patient monitoring GENERAL DESCRIPTION The ADPD4200 operates as a complete multimodal sensor front end, stimulating up to four light emitting diodes (LEDs) and measur- ing the return signal on up to four separate current inputs. Twelve time slots are available, enabling 12 separate measurements per sampling period. The data output and functional configuration utilize a serial port interface (SPI) on the ADPD4200. The control circuitry includes flexible LED signaling and synchronous detection. The device uses a 1.8 V analog core and 1.8 V or 3.3 V compatible digital input/out- put (I/O). The analog front end (AFE) 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. Multiple operating modes are provided, enabling the ADPD4200 to be a sensor hub for synchronous measurements of photodiodes, biopotential electrodes, resistance, capacitance, and temperature sensors. The ADPD4200 is available in a 2.619 mm × 1.804 mm, 0.40 mm pitch, 24-ball WLCSP. Analog Devices is in the process of updating documentation to provide terminology and language that is culturally appropriate. This is a process with a wide scope and will be phased in as quickly as possible. Thank you for your patience. |
Аналогичный номер детали - ADPD4200 |
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Аналогичное описание - ADPD4200 |
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