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.


  • Medical Instrumentation (ECG) including :
    ►Heart Rate, Respiration, and Single-Lead ECG
  • Medical Instrumentation (PPG) including :
    ►Optical Heart-Rate Monitoring (HRM)
    ►Heart-Rate Variability (HRV)
    ►Pulse Oximetry (SpO2 Measurement)
    ►VO2 Max
  • Sports and Fitness Wearable Devices
  • High-Precision, Simultaneous, Multichannel Signal Acquisition
Status EOL
Controller No
Package Type WL-CSP3.10x3.48-41
  • 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 : 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 50μA
    ► Input Maximum Capacitance : 1nF
    ► Input-Referred Noise : 50pArms at 5μA Input Current
    ► CMRR > 80dB at 60Hz
    ► PGA Gain : 1 to 6V/V
    ► Ambient DAC1/DAC2 Range : 1 to 6μA
  • 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 : -20ºC to 65ºC
    ► Small 3.1mm x 3.4mm, 41-Ball, 0.4mm Pitch, and WL-CSP Package
    ► RoHS Compliant and Halogen Free
TitleLast UpdateDownload
Low-Power, Integrated ECG/PPG AFE for Heart-Rate Monitoring and Measurements2017/11/15
Technical Documents
TitleItem TypeLast UpdateDownload
ECG/PPG量测解决方案 App. Note2018/09/20
穿戴式应用中的电源管理器件 [Sep., 2018] Selection Guide2018/09/01
Part NumberPackage TypePackage Qty.Free SampleBuy From Authorized Distributor
RT1025WSWL-CSP3.10x3.48-412000 Request Buy from Distributor