RT1025 Datasheet | Richtek

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 > 100d B 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 4k Hz. The RT1025 solution need only few discrete ponents 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 : - Ro HS pliant and patible with the current requirements of IPC/JEDEC J-STD-020. - Suitable for use in Sn Pb or Pb-free soldering processes. Marking Information RT1025WS YYWW-AABB XXXXXXXX RT1025WS : Product Number YYWW : Date code AABB : Version, fad, OSAT & Pb free code XXXXXXXX : Lot ID number 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 500MΩ at Two-Electrode Mode and > 1GΩ at Right Leg Drive Mode - Low Input-Referred Noise : 0.67µVrms (64Hz ODR, Gain = 12) - Dynamic Range : 110d B at Gain = 6 - CMRR > 85d B 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 / 105m A, Each with 8-bit Current Resolution - Input Maximum Current Range : 0.5 to 50µA - Input Maximum Capacitance : 1n F - Input-Referred Noise : 50p...