AS7050_EVALKIT_BT

Datasheet DS000XXX AS7050 Analog Frontend for Vital Sign Monitoring v3-00 • 2022-Mar-17 Document Feedback AS7050 Content Guide Content Guide 1 General Description ...................... 3 7 Soldering & Storage Information 13 1.1 1.2 1.3 Key Benefits & Features ............................... 4 Applications .................................................. 4 Block Diagram .............................................. 5 8 Revision Information ................... 14 9 Legal Information ......................... 15 2 Ordering Information .................... 6 3 Absolute Maximum Ratings ......... 7 4 Electrical Characteristics ............. 8 5 Package Drawings & Markings ...11 6 Tape & Reel Information ..............12 Short Datasheet • PUBLIC DS000XXX • v3-00 • 2022-Mar-17 15 │ 2 Document Feedback 1 AS7050 General Description General 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 Short Datasheet • PUBLIC DS000XXX • v3-00 • 2022-Mar-17 15 │ 3 Document Feedback 1.1 AS7050 General Description Key Benefits & Features The benefits and features of AS7050, Analog Frontend for Vital Sign Monitoring are listed below: Figure 1: Added Value of Using AS7050 1.2 Benefits Features High flexible LED/photodiode configuration. Up to 8 LED drivers and 6 photodiode input pins. Allows smallest application size e.g. narrow HRM measurement band. Small Wafer-Level-Chip-Scale-Package (WLCSP). Electrocardiogram ECG with dry electrodes. Embedded low noise analog front-end for ECG signals acquisition. Enables blood pressure measurements. Synchronized PPG and ECG acquisition. Excellent HRM measurement quality. Low noise analog front-end for PPG acquisition Additional information for end user. Analog electrical front-end (e.g. for temperature sensing using a NTC or galvanic skin resistivity (GSR)). Long operating time. Hardware sequencer to offload processor. Adjustable LED driver with current control. Ready for blood oxygen measurement 2 PPG channels useable in simultaneous mode available Acquiring several bio signals in parallel ECG and PPG channels separated and simultaneous useable Applications ● ● ● ● ● ● ● ● Optical sensor platform Fitness band Smart watch Smart patches Heart rate monitor Hearables ECG monitoring Cuff-less blood pressure measurements Short Datasheet • PUBLIC DS000XXX • v3-00 • 2022-Mar-17 15 │ 4 Document Feedback 1.3 AS7050 General Description Block Diagram The functional blocks of this device are shown below: Figure 2 : Functional Blocks of AS7050 AS7050 PD MUX PPG 19 bits ADC INT DC/AMB COMP TIA/INT INN INP RLD ADC 19 bits ECG AFE SEQ LED7 LED8 LED5 LED6 LED4 LED2 LED3 LED1 CTRL Clock Gen 8 x LED Driver Short Datasheet • PUBLIC DS000XXX • v3-00 • 2022-Mar-17 FIFO I2C_SCL/CLK I2C_SDA/SDI SDO CS INT CLK/ SYNC PD1 PD2 PD3 PD4 PD5 PD6 15 │ 5 Document Feedback 2 AS7050 Ordering Information Ordering Information Ordering Code Package Marking Delivery Form Delivery Quantity AS7050-BWLM WLCSP n.a. Tape & Reel 500 pcs/reel AS7050-BWLT WLCSP n.a. Tape & Reel 10000 pcs/reel Short Datasheet • PUBLIC DS000XXX • v3-00 • 2022-Mar-17 15 │ 6 Document Feedback 3 AS7050 Absolute Maximum Ratings Absolute Maximum Ratings Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only. Functional operation of the device at these or any other conditions beyond those indicated under “Operating Conditions” is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. Figure 3 Absolute Maximum Ratings of AS7050 Symbol Parameter Min Max Unit Comments Electrical Parameters VDD Digital Supply Voltage 1.98 V VDDA Analog Supply Voltage 1.98 V VDDIO IO Supply Voltage 6 V VGNDA-PGND Analog to Power Ground Voltage Difference ±0.3 V VGNDA-GND Analog to Digital Ground Voltage Difference ±0.3 V ISCR Input Current (latch-up immunity) ILEDON Average LED ON Current ±100 35 mA Norm: JEDEC JESD78 Connect specified capacitor on SIGREF and V_LDO during latch-up test. mA DC current with all LEDs ON during all time slots kV JS-001-2017 Electrostati c Discharge ESDHBM Electrostatic Discharge HBM ±2.0 Temperatur e Ranges and Storage Conditions TSTRG Storage Temperature Range -40 TAMB Operating Free-air Temperature -30 TBODY Package Body Temperature RHNC Relative Humidity (non-condensing) MSL Moisture Sensitivity Level (1) 5 1 125 °C 85 °C 260 °C 85 % IPC/JEDEC J-STD-020 (1) Maximum floor life time unlimited @ 30°C/85% RHmax The reflow peak soldering temperature (body temperature) is specified according to IPC/JEDEC J-STD-020 “Moisture/Reflow Sensitivity Classification for Non-hermetic Solid State Surface Mount Devices.” Short Datasheet • PUBLIC DS000XXX • v3-00 • 2022-Mar-17 15 │ 7 Document Feedback 4 AS7050 Electrical Characteristics Electrical Characteristics All limits are guaranteed. The parameters with Min and Max values are guaranteed with production tests or SQC (Statistical Quality Control) methods. Figure 4: Electrical Characteristics of AS7050 Symbol Parameter VDD VDDA Conditions Min Typ Max Unit Supply voltage 1.7 1.8 1.98 V Analog positive supply voltage 1.7 1.8 1.98 V VDD 3.3 6 V 4 MHz VDDIO fEXTCLK External clock frequency fSampling,ECG Sampling frequency 8 kHz fSampling,PPG Sampling frequency 1 kHz IOS DAC offset current full scale range 128 µA CPD Total photodiode capacitance connected 0 V reserve voltage 300 pF Photo current input RTIA (TIA gain) values 9.375 k1.2 M; (∑ signal range 1 µA64 µA) 0 64 µA Input signal ECG Max ECG input signal according to IEC 60601-2-47, chapter 201.12.4.4.101 -10 10 mV 2 Photodiode IPD 60 ECG VIN_SIG Short Datasheet • PUBLIC DS000XXX • v3-00 • 2022-Mar-17 15 │ 8 Document Feedback Symbol AS7050 Electrical Characteristics Parameter Conditions Min Input DC offset Max ECG DC Offset voltage according to IEC60601-2-47, chapter 201.12.4.4.101 -300 VNoise, p-v Input-related peak to valley noise Measured at the output of ECG amplifier in the frequency range of fIN according to IEC 60601-2-47, chapter 201.12.4.4.106 RIN Input Impedance According to IEC 60601-2-47, chapter 201.12.4.4.102 100 MΩ ECG_CR ECG conversion rate 19-bit resolution 8 kSps ECG_P_TOTAL Power consumption 5 mA ECG_RES ECG Resolution ECG_ENOB ENOB 17 bits VECGADC_REFP Positive reference voltage 1.6 V VIN_DC_OFF Typ Max Unit 300 mV 50 µV ECG-MODE DSM Interface 19 bits LED Driver LED pad voltage 5 V ILED Allowed operating LED output current 300 mA VCompl_1 Compliance voltage 0.85 V ILED Allowed operating LED output current 50 mA VCompl_1 Compliance voltage 0.3 V VLED LED Driver 1-6 LED Driver 7-8 Short Datasheet • PUBLIC DS000XXX • v3-00 • 2022-Mar-17 15 │ 9 Document Feedback Symbol AS7050 Electrical Characteristics Parameter Conditions Min Typ Max Unit VECG_VCM Reference voltage at T=27 °C 0.8 V VREF_ADC Reference voltage Trimmed reference voltage, at T=27 °C 1.6 V VPPG_VCM Reference voltage at T=27 °C 0.8 V TSEN_OUT Temperature sensor output voltage At room temperature 636 mV TSEN_TK Temperature sensor temperature coefficient of the output voltage -40 °C to 105 °C -2.03 mV/°C 1.6 V Reference Block Analog Front End VOUT_DAC Output voltage DAC VOUT_AFE Output voltage range AFE RRANGE Bias resistor trimming range CGPIO Load capacitance GPIO1/2 0.3 Across process and voltage corners, 25 °C 1.4 V kΩ 500 50 pF 5.5 V LDO VLDO HV power supply 2.3 VLDO1V8 Output voltage Output voltage in operating mode 1.8 V CLDO Output capacitance External blocking capacitance 1 µF Short Datasheet • PUBLIC DS000XXX • v3-00 • 2022-Mar-17 15 │ 10 Document Feedback 5 AS7050 Package Drawings & Markings Package Drawings & Markings Figure 5: Package Outline Drawing (2) (3) (4) (5) All dimensions are in micrometers. Angles in degrees. Dimensioning and tolerancing conform to ASME Y14.5M-1994. This package contains no lead (Pb). This drawing is subject to change without notice. Short Datasheet • PUBLIC DS000XXX • v3-00 • 2022-Mar-17 15 │ 11 Document Feedback 6 AS7050 Tape & Reel Information Tape & Reel Information Figure 6: Tape Dimensions Short Datasheet • PUBLIC DS000XXX • v3-00 • 2022-Mar-17 15 │ 12 Document Feedback 7 AS7050 Soldering & Storage Information Soldering & Storage Information Figure 7: Solder Reflow Profile Graph Figure 8: Solder Reflow Profile Parameter Reference Average temperature gradient in preheating Device 2.5 °C/s Soak time tsoak 2 to 3 minutes Time above 217 °C (T1) t1 Max 60 s Time above 230 °C (T2) t2 Max 50 s Time above Tpeak – 10 °C (T3) t3 Max 10 s Peak temperature in reflow Tpeak 260 °C Temperature gradient in cooling Short Datasheet • PUBLIC DS000XXX • v3-00 • 2022-Mar-17 Max −5 °C/s 15 │ 13 Document Feedback 8 AS7050 Revision Information Revision Information Document Status Product Status Definition Product Preview Pre-Development Information in this datasheet is based on product ideas in the planning phase of development. All specifications are design goals without any warranty and are subject to change without notice Preliminary Datasheet Pre-Production Information in this datasheet is based on products in the design, validation or qualification phase of development. The performance and parameters shown in this document are preliminary without any warranty and are subject to change without notice Datasheet Production Information in this datasheet is based on products in ramp-up to full production or full production which conform to specifications in accordance with the terms of ams AG standard warranty as given in the General Terms of Trade Datasheet (discontinued) Discontinued Information in this datasheet is based on products which conform to specifications in accordance with the terms of ams AG standard warranty as given in the General Terms of Trade, but these products have been superseded and should not be used for new designs Changes from previous version to current revision v3-00 ● ● Page Page and figure numbers for the previous version may differ from page and figure numbers in the current revision. Correction of typographical errors is not explicitly mentioned. Short Datasheet • PUBLIC DS000XXX • v3-00 • 2022-Mar-17 15 │ 14 Document Feedback 9 AS7050 Legal Information Legal Information Copyrights & Disclaimer Copyright ams AG, Tobelbader Strasse 30, 8141 Premstaetten, Austria-Europe. Trademarks Registered. All rights reserved. The material herein may not be reproduced, adapted, merged, translated, stored, or used without the prior written consent of the copyright owner. Devices sold by ams AG are covered by the warranty and patent indemnification provisions appearing in its General Terms of Trade. ams AG makes no warranty, express, statutory, implied, or by description regarding the information set forth herein. ams AG reserves the right to change specifications and prices at any time and without notice. Therefore, prior to designing this product into a system, it is necessary to check with ams AG for current information. This product is intended for use in commercial applications. Applications requiring extended temperature range, unusual environmental requirements, or high reliability applications, such as military, medical life-support or life-sustaining equipment are specifically not recommended without additional processing by ams AG for each application. This product is provided by ams AG “AS IS” and any express or implied warranties, including, but not limited to the implied warranties of merchantability and fitness for a particular purpose are disclaimed. ams AG shall not be liable to recipient or any third party for any damages, including but not limited to personal injury, property damage, loss of profits, loss of use, interruption of business or indirect, special, incidental or consequential damages, of any kind, in connection with or arising out of the furnishing, performance or use of the technical data herein. No obligation or liability to recipient or any third party shall arise or flow out of ams AG rendering of technical or other services. 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