AS7058 High Performance Analog - Frontend
AFE supporting PPG, ECG, GSR/EDA and Bio-Impedance
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
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
Tools
| Title | Category | Headline | Buy |
|---|---|---|---|
| AS7058 Eval Kit | Application Board | Evaluation Kit for AS7058 |
Resources
| Type | Description | Language | ||
|---|---|---|---|---|
| Library | AS7058_Lib_intlib_v1-0-0.zip AS7058 Schematic and Footprint | EN | ||
| Evaluation Software | AS7058_EvalSW_pWin_v3.3.1.zip AS7058_EvalSW_pWin_v3.3.1.zip Evaluation Software for Windows with Firmware v3.3.0 | EN | ||
| Evaluation Software | AS7058_EvalSW_osx_v3.3.1.zip AS7058_EvalSW_osx_v3.3.1.zip Evaluation Software for macOS with Firmware v3.3.0 | EN | ||
| Demo | AS7058_Demo_v1-0-0.zip 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 |
Related boards
Evaluation Kit for AS7058
AS7058 Eval Kit
The AS7058 Eval Kit is designed to evaluate all functions of the AS7058 biosensor and test them in various applications. The AS7058 Eval Kit works with USB connection to the PC and comes with a GUI, which enables the user to change register settings and see measurement results. Any signals important for development can be probed easily at the pin headers.
Related products
AS7056 Medical and Health Sensor - Analog Frontend
AS7056
The AS7056 Biosignal Sensor Analog Frontend (AFE) is the next generation Vital Sign Sensor. It enables the user to detect biosignals such as photoplethysmogram (PPG) and pulse transit time (PTT), as well as proximity. 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. Apart from HRM/HRV, optical Blood Pressure and SpO2 are also enabled by the two independent working photodiode inputs of the AS7056. The AS7056 is a size and performances optimized analog frontend to support space-limited applications such as in-ear vital sign monitoring.
The AS7056 provides two LEDs and one VCSEL driver outputs, samples up to three photodiode inputs, and supports proximity detection integrated into one of the PPG signal channels. This enables high flexibility for several LED and photodiode arrangements in different applications. Furthermore, the AS7056 Biosignal Sensor Analog Frontend provides two ADC channels for simultaneous PPG measurements and an automatic photodiode offset control.
The AS7056’s low-power design and small form factor are particularly well-suited for application in earbuds, fitness bands, smartwatches, sports watches, and smart patches. In these cases, board space is limited, and users look for extended, multi-day intervals between battery recharges. A thin package dimension makes the AS7056 suitable for height-constrained solutions like earbuds.
AS7057 Medical and Health Sensor - Analog Frontend
AS7057
The AS7057 Biosignal Sensor Analog Frontend (AFE) is the next generation Vital Sign Sensor. It enables the user to detect biosignals such as photoplethysmogram (PPG) and pulse transit time (PTT), as well as proximity. 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. Apart from HRM/HRV, optical Blood Pressure and SpO2 are also enabled by the two independent working photodiode inputs of the AS7057. The AS7057 is a size and performance optimized analog frontend to support space-limited applications such as in-ear vital sign monitoring.
The AS7057 provides three LED driver outputs, samples up to three photodiode inputs, and supports proximity detection integrated into one of the PPG signal channels. This enables high flexibility for several LED and photodiode arrangements in different applications. Furthermore, the AS7057 Biosignal Sensor Analog Frontend provides two ADC channels for simultaneous PPG measurements and an automatic photodiode offset control.
The AS7057’s low-power design and small form factor are particularly well-suited for application in earbuds, fitness bands, smartwatches, sports watches, and smart patches. In these cases, board space is limited, and users look for extended, multi-day intervals between battery recharges. A thin package dimension makes the AS7057 suitable for height-constrained solutions like earbuds.
AS7050 Medical and Health Sensor - Analog Frontend
AS7050
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.