ams AS7050 Medical and Health Sensor - Analog Frontend

ams AS7050 Medical and Health Sensor - Analog Frontend
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Description

The AS7050 Biosignal Sensor Analog Frontend is the next generation Vital Sign Sensor. It enables the user to detect biosignals such as photoplethysmogram (PPG), electrocardiogram (ECG) and galvanic skin resistance (GSR). PPG is the most used HRM method. It measures the pulse rate 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. 
Compared to the previous ams-OSRAM biosignal sensor generation, AS7050 is a biosignal converting unit. The AS7050 provides up to 8 LED driver outputs, samples up to 6 photodiode inputs and supports external electrodes. This enables the highest flexibility for several LED and photodiode arrangements in different applications. Furthermore, the AS7050 Biosignal Sensor Analog Frontend provides 2 ADC channels for simultaneous PPG and ECG measurements and an automatic photodiode offset control. The embedded ECG analog front-end satisfies IEC 60601-2-47 requirements.
The AS7050’s low-power design and small form factor are particularly well suited to application in fitness bands, smartwatches, sports watches, smart patches and earbuds. In these cases, board space is limited, and users look for extended, multi-day intervals between battery recharges. Thin package dimension makes the AS7050 suitable for height constrained solution likes earbuds.
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Details

Features

  • Up to 8 LED and 6 PD
  • Embedded low noise analog front-end for ECG acquisition
  • Sychronized PPG and ECG channels
  • Low noise analog optical front-end
  • Temperature sensing via NTC or galvanic skin resistivity possible
  • ECG and PPG channels separated and simultaneous useable
  • Hardware sequencer to offload processor. Adjustable LED driver with current control.
  • 2 PPG channels useable in simultaneous mode available
  • Up to 8 LED and 6 PD
  • Embedded low noise analog front-end for ECG acquisition
  • Sychronized PPG and ECG channels
  • Low noise analog optical front-end
  • Temperature sensing via NTC or galvanic skin resistivity possible
  • ECG and PPG channels separated and simultaneous useable
  • Hardware sequencer to offload processor. Adjustable LED driver with current control.
  • 2 PPG channels useable in simultaneous mode available

Benefits

  • High flexible LED/PD configuration
  • Electrocardiogram ECG with dry electrodes.
  • Enables blood pressure measurements.
  • Good HRM measurement quality
  • Additional information for end user.
  • Aquiring several biosignals in parallel
  • Long operating time.
  • Ready for blood oxygen measurement
  • High flexible LED/PD configuration
  • Electrocardiogram ECG with dry electrodes.
  • Enables blood pressure measurements.
  • Good HRM measurement quality
  • Additional information for end user.
  • Aquiring several biosignals in parallel
  • Long operating time.
  • Ready for blood oxygen measurement

Parameters

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

Ordering codes

Product Type Description Order No. Availability
AS7050-BWLM_REV.C Q65114A1288
Status information
Full production
Pre-production
Not planned for new design
Ordering and shipping are still possible
Discontinued
Buy now
Distribution partners:
Digi-Key
Buy now
Mouser
Buy now
AS7050-BWLT Q65114A1287
Status information
Full production
Pre-production
Not planned for new design
Ordering and shipping are still possible
Discontinued
Request product
AS7050A-BWLT WLP LF T&R With ams OSRAM Algorithm Q65114A2894
Status information
Full production
Pre-production
Not planned for new design
Ordering and shipping are still possible
Discontinued
Request product

Downloads

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Datasheets

AS7050 DS001051

Short datasheet
EN
DE
CN
JP

Application note

Technical documents

Images

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