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RT1025WS Datasheet(PDF) 1 Page - Richtek Technology Corporation |
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RT1025WS Datasheet(HTML) 1 Page - Richtek Technology Corporation |
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1 / 24 page  RT1025 Copyright © 2022 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation DS1025-01 July 2022 www.richtek.com 1 Low-Power, Integrated ECG/PPG AFE for Heart-Rate Monitoring and Measurements General Description The RT1025 is an integrated AFE solution for Heart-Rate monitoring and measurements. The RT1025 integrates low noise voltage and current sensing channels and is capable of sensing ECG (Electrocardiography) and PPG (Photoplethysmography) simultaneously. The RT1025 have > 100dB dynamic range and can sense pulses accurately by detecting the heart’s electric signals. The sampling rates of the high-precision voltage and current sensing channels in the RT1025 are configurable between 64 to 4kHz. The RT1025 solution need only few discrete components and is easy to use for low-power medical ECG/PPG, sports, and fitness applications. With high levels of integration and high-precision voltage and current sensing channels, the RT1025 solution is suitable for scalable medical instrumentation systems. The RT1025 is available in a 3.1mm x 3.4mm, 41-Ball, 0.4mm pitch, WL-CSP package. Ordering Information RT1025 Package Type WS : WL-CSP-41B 3.10x3.48 (BS) Note : Richtek products are : RoHS compliant and compatible with the current requirements of IPC/JEDEC J-STD-020. Suitable for use in SnPb or Pb-free soldering processes. Marking Information RT1025WS : Product Number YYWW : Date code AABB : Version, fad, OSAT & Pb free code XXXXXXXX : Lot ID number RT1025WS YYWW-AABB XXXXXXXX Features ECG Channel Feature Supports Two-Electrode (2E) Mode and Right Leg Drive (RLD) Mode Low Noise PGA and High Resolution ADC Input Impedance : 125M to 500M Ω at Two-Electrode Mode and > 1G Ω at Right Leg Drive Mode Low Input-Referred Noise : 0.67 µVrms (64Hz ODR, Gain = 12) Dynamic Range : 110dB at Gain = 6 CMRR > 85dB at 60Hz Data rate : 64SPS to 4k SPS PPG Channel Feature Flexible Timing Control and Support Dynamic Power Down TX Supports H-bridge and Push/Pull Mode TX LED Current Range : 10 / 25 / 35 / 50 / 65 / 75 / 90 / 105mA, Each with 8-bit Current Resolution Input Maximum Current Range : 0.5 to 50 µA Input Maximum Capacitance : 1nF Input-Referred Noise : 50pArms at 5 µA Input Current CMRR > 80dB at 60Hz PGA Gain : 1 to 6V/V Ambient DAC1/DAC2 Range : 1 to 6 µA Others 2-in-1 Bio-Sensing AFE (Voltage/Current) Built-In Heartbeat Interval Estimation Integrates an Oscillator to offer High-Precision Clock with External Crystal Support I2C and SPI I/F for MCU On-Chip SRAM for Data Buffering Ultra-Low Power Consumption Operating Temperature Range : –20 °C to 65°C Small 3.1mm x 3.4mm, 41-Ball, 0.4mm Pitch, and WL-CSP Package RoHS Compliant and Halogen Free |
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