AS7058 OSRAM

Document overview

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Technical content

Tobelbader Strasse 30, 8141 Premstaetten, Austria Phone +43 3136 500-0 ams-osram.com © All rights reserved AS7058 Datasheet

Short Datasheet • PUBLIC • Document Feedback DS001085 • v1-01 • 2023-Oct-26 2 / 14 Table of contents

Short Datasheet • PUBLIC • Document Feedback DS001085 • v1-01 • 2023-Oct-26 3 / 14 AS7058 IC for PPG, ECG and body impedance measurement

1 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. The PPG acquisition system provides up to eight LEDs and eight photodiode inputs. The LEDs are powered by two high current 8-bit programmable LED drivers with four current ranges. Additionally, a special laser safety support system can be enabled, which offers the possibility to use VCSEL die as a light source. The photodiodes can be read out synchronously with two 20-bit ADCs. As the second product in the AS705x family, the AS7058 includes a new method of ambient light suppression method called advanced automatic offset control (AAOC). This method enables the system to adjust towards the ambient light situation before the actual measurement starts and minimizes the loss of data due to the saturation influence by ambient light. The ECG channel has high-input impedance, low noise, high CMRR, programmable gain, an anti-aliasing low-pass filter, and a high-resolution 20-bit ADC. It is designed according to IEC 60601-2-47 Ambulatory ECG Systems monitoring compliance requirements. The BioZ channel has a low-pass filter and a calibration routine available. The channel also has high input impedance, low noise, programmable gain, low-pass and high-pass filter options, and shares the high-resolution ADC with the ECG system. Several ranges of excitation current and frequencies are also available. The AS7058 has a DC and AC lead-off detection for the ECG, a flexible clock system, and a PLL. All three inbuilt ADCs are synchronized. The device is available in a 42-ball wafer-level chip scale package (WLCSP) with dimensions 2.82 x 2.55 mm and operates over the temperature range -40 °C to 85 °C.

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1.1 Key benefits & features

The benefits and features of AS7058 are listed below: Table 1: Added value of using AS7058 Benefits Features Highly flexible LED/photodiode configuration. Up to 8 LED output pins and 8 photodiode input pins. Allows the 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 signal acquisition. Enables blood pressure measurements. Synchronized PPG and ECG acquisition. Outstanding HRM measurement quality. Low noise analog front end for PPG acquisition. Measuring the body composition and the skin’s water content. An independent body impedance and an electrodermal activity system are included. Long operating time. A hardware sequencer to offload the processor with an adjustable LED driver with current control. Low power operating mode. Two PPG channels usable in parallel mode are available. Acquiring several bio signals in parallel. Either ECG, BIOZ or EDA (GSR) and two PPG channels, separated and usable simultaneously. Improvement in ambient light suppression. Includes a new type of offset cancelation for the PPG signal: Advanced Automatic Offset Control.

1.2 Applications

  • Wearable vital sign monitors
  • Fitness band
  • Smart watch
  • Heart rate monitor
  • Hearables
  • ECG monitoring
  • Medical patches
  • Pulse-oximetry devices
  • Single- and multi-frequency body impedance devices
  • Pulse Arrival Time (PAT), Pulse Transit Time (PTT), Pulse Wave Velocity (PWV) Assessments

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1.3 Block diagram

The functional blocks of this device are shown below: Figure 1: Functional blocks of AS7058 32kHz Osc. INT MOD 1 Current input 20 bit delta-sigma

8 Bit

(Amp, Generator, Demodulator, LED/VCSEL Driver 1... LED/VCSEL Driver 2 Sequencer Interrupt SINC Filter Post Processing IIR Filter FIFO VCSEL Safety Protection AS7058 Vital Signs Monitoring AFE LED1 LED4 ... LED5 LED8 PD1 PD2 PD3 PD4 PD5 PD6 PD7 PD8 ECG_REF ECG_INP ECG_INN BIOZ1 BIOZ2 BIOZ3 BIOZ4 SCL SDA_MOSI MISO CSXN GPIO EXTCLK_SYNC PGND1 PGND2 VCSELA VCSELS AVDD1 VAVDD AGND1 AVDD2 AGND2 VAVDD IOVDD VIOVDD DVDD DGND VDVDD MOD 2 Current input 20 bit delta-sigma ECG Amp Reference Leadoff-Detection PD Offset 2MHz Osc. PLL / CGU Digital Core

Ordering information

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2 Ordering information

Ordering code Package Marking Delivery form Delivery quantity Q65113A6621 WLCSP AS7058 Tape & reel 500 pcs/reel Q65113A6622 WLCSP AS7058 Tape & reel 10000 pcs/tray Q65113A6625 WLCSP AS7058A Tape & reel 500 pcs/tube Q65113A6626 WLCSP AS7058A Tape & reel 10000 pcs/tray

3 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. Table 2: Absolute maximum ratings of AS7058 Symbol Parameter Min Max Unit Comments Electrical Parameters VDVDD Digital supply voltage -0.3 1.98 V DVDD to DGND VAVDD Analog supply voltage -0.3 1.98 V AVDD to AGND VIOVDD IO supply voltage -0.3 1.98 V IOVDD to AGND VVCSELS VCSELS supply voltage -0.3 5.5 V VCSELS to AGND VVCSELA VCSELA pin voltage -0.3 5.5 V VCSELA to AGND VVCSELA-VCSELS Voltage difference between pins VCSELA and VCSELS -0.3 0.3 V VLED LED pin voltage -0.3 5.5 V LED1-LED8 to PGND1 or PGND2 VIN-DIGITAL Digital input pin voltage to ground -0.3 VIOVDD+0.3 V max. 1.98 V V Applicable to pins SCL, SDA_MOSI, CSXN, GPIO and EXTCLK_SYNC VIN-ANALOG Analog input pin voltage to ground -0.3 VAVDD+0.3 V max. 1.98 V V Applicable to pins ECG_INP, ECG_INN, PD1/PD2, PD3, PD4, PD5, PD6, PD7, PD8, BIOZ1, BIOZ2, BIOZ3 and BIOZ4 VPGND-AGND Power to analog ground voltage difference -0.3 0.3 V

Electrical characteristics

Short Datasheet • PUBLIC • Document Feedback DS001085 • v1-01 • 2023-Oct-26 7 / 14 Symbol Parameter Min Max Unit Comments VDGND-AGND Digital to analog ground voltage difference -0.3 0.3 V ILEDON Average LED ON Current 35 mA ISCR Input current (latch-up immunity) ± 100 mA JEDEC JESD78E Electrostatic Discharge ESDHBM Electrostatic discharge HBM ± 2 kV JS-001-2017 ESDCDM Electrostatic discharge CDM ± 500 V JS-002-2018 Temperature Ranges and Storage Conditions TA Operating ambient temperature -40 85 °C TSTRG Storage temperature range -40 125 °C RHNC Relative humidity (non- condensing) 5 85 % MSL Moisture sensitivity level 1 According to JEDEC J-STD- 020E Represents a max. floor life time of unlimited tSTRG DOF Storage time for DOF/die or wafers on foil 3 months Refers to indicated date of packing (1) The reflow peak soldering temperature (body temperature) is specified according to IPC/JEDEC J-STD-020 “Moisture/Reflow Sensitivity Classification for Nonhermetic Solid State Surface Mount Devices.” The lead finish for Pb-free leaded packages is “Matte Tin” (100 % Sn).

4 Electrical characteristics

All limits are guaranteed. The parameters with Min and Max values are guaranteed with production tests or SQC (Statistical Quality Control) methods. Conditions: TA = 25 °C, VDVDD = 1.8 V, VAVDD = 1.8 V, VIOVDD = 1.8 V Table 3: Electrical characteristics of AS7058 Symbol Parameter Conditions Min Typ Max Unit VDVDD Digital supply voltage 1.70 1.80 1.98 V VAVDD Analog supply voltage 1.70 1.80 1.98 V VIOVDD IO supply voltage 1.08 1.80 1.98 V

Short Datasheet • PUBLIC • Document Feedback DS001085 • v1-01 • 2023-Oct-26 8 / 14 Symbol Parameter Conditions Min Typ Max Unit VVCSELS VCSELS supply voltage Voltage must not be below VAVDD 1.75 5.50 V Photodiode inputs IPD Photocurrent input 64 µA MOD1 & MOD2 (PPG channels) MODDAC_OFF DAC offset current full-scale range for MOD1 or MOD2 (X = 1 or 2) PPGMODX_IOS_FS = 0 1 µA PPGMODX_IOS_FS = 1 2 PPGMODX_IOS_FS = 2 4 PPGMODX_IOS_FS = 3 8 PPGMODX_IOS_FS = 4 16 PPGMODX_IOS_FS = 5 32 PPGMODX_IOS_FS = 6 64 PPGMODX_IOS_FS = 7 128 MODRES ADC resolutions of MOD1 and MOD2 20 bit LED driver LEDRES LED driver resolution 8 bit IRANGE1 Allowed operating input current for LED pin 1 to 4 (X = 1 to 4) LEDX_IRNG = 0 25 mA LEDX_IRNG = 1 150 LEDX_IRNG = 2 225 LEDX_IRNG = 3 300 IRANGE2 Allowed operating input current for LED pin 5 to 8 (X = 5 to 8) LEDX_IRNG = 0 25 mA LEDX_IRNG = 1 150 LEDX_IRNG = 2 225 LEDX_IRNG = 3 300 ECG/BioZ channel MOD3RES ADC resolution of ECG and BioZ Modulator 3 20 bit Digital inputs (SDA_MOSI, SCL, EXTCLK_SYNC, CSXN, GPIO) VIH Input high VIOVDD × 0.7 V VIL Input low VIOVDD × 0.3 V

Package drawings & markings Short Datasheet • PUBLIC • Document Feedback DS001085 • v1-01 • 2023-Oct-26 9 / 14 Symbol Parameter Conditions Min Typ Max Unit fEXTCLK_SYNC External clock frequency Input frequency at pin EXTCLK_SYNC; Only 2 MHz or 4 MHz is supported 2 4 MHz Digital outputs (SDA_MOSI, MISO, INT, GPIO) VOH Output high towards GND Current load ≤ 6 mA VIOVDD - 0.4 V VOL Output low towards IOVDD Current load ≤ 6 mA 0.4 V

5 Package drawings & markings

Figure 2: WLCSP42 package outline drawing (1) All dimensions are in millimeters. Angles in degrees. (2) Dimensioning and tolerancing conform to ASME Y14.5M-1994. (3) N is the total number of terminals. (4) This package contains no lead (Pb). (5) This drawing is subject to change without notice. Top through view Notes: Pin 1 = A1 cc c Coplana rity All dimensions a re in µm Bottom view (Ball side) Die size af ter cu ttin g: 25 45 x28 15 ±20 Device No. A B D E F G C 123456 A 2770 400400400400400400 185185 400 400 400 400 400 2500 250 250 570±30 200 typ . 345 typ . 25 typ.

Package drawings & markings Short Datasheet • PUBLIC • Document Feedback DS001085 • v1-01 • 2023-Oct-26 10 / 14 Figure 3: AS7058 WLCSP42 package marking/code AS7058 Ball A1 XXXXX xxxxxxxx Tracecode

Package drawings & markings Short Datasheet • PUBLIC • Document Feedback DS001085 • v1-01 • 2023-Oct-26 11 / 14 Figure 4: AS7058A WLCSP42 package marking/code AS7058 A Ball A1 XXXXX xxxxxxxx Tracecode

Tape & reel information Short Datasheet • PUBLIC • Document Feedback DS001085 • v1-01 • 2023-Oct-26 12 / 14

6 Tape & reel information

Figure 5: WLCSP42 tape dimensions

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7 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-OSRAM AG standard warranty as given in the General Terms of Trade Other Definitions Draft / Preliminary: The draft / preliminary status of a document indicates that the content is still under internal review and subject to change without notice. ams-OSRAM AG does not give any warranties as to the accuracy or completeness of information included in a draft / preliminary version of a document and shall have no liability for the consequences of use of such information. Short Datasheet: A short datasheet is intended for quick reference only, it is an extract from a full datasheet with the same product number(s) and title. For detailed and full information always see the relevant full datasheet. In case of any inconsistency or conflict with the short datasheet, the full datasheet shall prevail. Changes from previous version to current revision v1-01 Page This short datasheet is derived from v1-01 of full datasheet

  • 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.

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8 Legal information

Copyright & disclaimer Copyright ams-OSRAM 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-OSRAM AG are covered by the warranty and patent indemnification provisions appearing in its General Terms of Trade. ams- OSRAM AG makes no warranty, express, statutory, implied, or by description regarding the information set forth herein. ams-OSRAM 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-OSRAM 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-OSRAM AG for each application. This product is provided by ams-OSRAM 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-OSRAM 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- OSRAM AG rendering of technical or other services. Product and functional safety devices/applications or medical devices/applications: ams-OSRAM AG components are not developed, constructed or tested for the application as safety relevant component or for the application in medical devices. ams-OSRAM AG products are not qualified at module and system level for such application. In case buyer – or customer supplied by buyer – considers using ams-OSRAM AG components in product safety devices/applications or medical devices/applications, buyer and/or customer has to inform the local sales partner of ams-OSRAM AG immediately and ams-OSRAM AG and buyer and /or customer will analyze and coordinate the customer-specific request between ams-OSRAM AG and buyer and/or customer. ams OSRAM semiconductor RoHS compliance statement RoHS compliant: The term RoHS compliant means that ams-OSRAM AG semiconductor products fully comply with current RoHS directives. Our semiconductor products do not contain any chemicals for all 6 substance categories plus additional 4 substance categories (per amendment EU 2015/863), including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Important information: The information provided in this statement represents ams-OSRAM AG knowledge and belief as of the date that it is provided. ams-OSRAM AG bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties. ams-OSRAM AG has taken and continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals. ams-OSRAM AG and ams-OSRAM AG suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for release. Headquarters ams-OSRAM AG Tobelbader Strasse 30

8141 Premstaetten

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