ams AS7058 High Performance Vital Sign - Analog Frontend

×
New

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.

Details

Features

  • 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

Benefits

  • 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

Parameters

Channels
input
8 detector
output
8
Supported algorithms
Heart rate
Heart rate variability
Blood pressure
SpO2
Package
WLCSP
Package dimension
l
2.82 mm
w
2.55 mm
h
0.4 mm
Supply voltage
max.
1.98 V
Interface
input
I²C slave
SPI (16MHz)
output
I²C slave
SPI (16MHz)
Operating ambient temperature
min.
-30 °C
max.
85 °C
SNR
120 dB

Ordering codes

Product Type Description Order No. Availability
AS7058A-BWLM With ams OSRAM Algorithm Q65113A6625
AS7058A-BWLT With ams OSRAM Algorithm Q65113A6626
AS7058-BWLM Q65113A6621
AS7058-BWLT Q65113A6622