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AS7058 High Performance Analog - Frontend

AFE supporting PPG, ECG, GSR/EDA and Bio-Impedance


  • 2 ADC (20-bit) for PPG acquisition
  • 1 ADC (20-bit) for ECG/BIOZ acquisition
  • 8 photodiode input pins
  • 8 emitters driven by 2 drivers up to 300mA at 500mV
  • PPG SNR up to 120dB FS (white card loop back test)
  • Advanced ambient light offset cancellation (AAOC)
  • Excellent ECG, CMRR ~ 118dB, Noise ~ 0.68µVRMS
  • Power consumption down to < 20µA @ 25 SPS
  • Package: 2.815 x 2.545 x 0.5 mm³, WLCSP, 42 pins


  • Lowest noise ECG frontend (0.68µVRMS)
  • Synchronized PPG and ECG for blood pressure
  • Lowest power consumption on the market
  • Innovative functions to measure galvanic skin response and bio-impedance (body composition)
  • High variety and number of sensing inputs allow implementation of the widest variety of vital sign monitoring technologies for consumer medical applications and smart watches, fitness bands, monitoring patches

Product parameters

Supply Voltage [V] 1.7 - 1.98
I²C Bus I²C slave, fast mode plus (1 MHz), fast mode (400 kHz) and standard mode (100 kHz)
Temperature Range [°C] -30 to 85°C
Package WLCSP
LED Configuration -
Supported Algorithms HRM, HRV, SpO2

General description

The AS7058 is an integrated multi-vital sign monitoring device, which provides a complete photoplethysmogram (PPG), electrocardiogram (ECG), body impedance (BioZ), and electrodermal activity (EDA). PPG measures the pulse rate or blood oxygen by sampling light modulated by the blood vessels, which expand and contract as blood pulses through them. ECG is the reference for any measurement of the biopotential generated by the heart. With EDA, it is possible to measure the skin’s water content, and with BioZ, the body composition with an electrical system.

This product suits for the following applications:

  • Smart watches
  • Fitness Band
  • Heart Rate Monitoring
  • ECG monitoring
  • Cuffless blood pressure measurement
  • Optical sensor platform
  • Smart Patches
  • Hearables


Title Category Headline Buy
AS7058 Eval Kit Application Board Evaluation Kit for AS7058


Type Description Language
Library AS7058 Schematic and Footprint EN
Evaluation Software Evaluation Software for Windows with Firmware v3.3.0 EN
Evaluation Software Evaluation Software for macOS with Firmware v3.3.0 EN
Demo AS7058 Eval Kit Schematic file EN

Technical documents

Type Description Language
Special Datasheet AS7058 short datasheet English

Environmental documents

Type Description Language
RoHS Certificate AS7058 RoHS certificate English

Other information

Type Description Language
Block Diagram AS7058 block diagram
Image AS7058 product image
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