AFE49I30YZT [TI]
用于可穿戴式光学生物传感、具有 FIFO、I2C 和 ECG 的超低功耗集成 AFE | YZ | 30 | -40 to 85;
| 型号： | AFE49I30YZT |
| 厂家： | 
TEXAS INSTRUMENTS |
| 描述： | 用于可穿戴式光学生物传感、具有 FIFO、I2C 和 ECG 的超低功耗集成 AFE | YZ | 30 | -40 to 85 先进先出芯片 |
| 文件： | 总7页 (文件大小：724K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
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AFE49I30
SBASA49 –MAY 2020
AFE49I30 Ultra-Small, Integrated AFE With FIFO for Multi-Sensor Wearable, Optical Heart-
Rate Monitoring and Bio-sensing
1 Features
•
Supports external clock and internal oscillator
modes
1
•
•
Supports signal acquisition of up to 24 phases
•
Option to acquire data synchronized with a system
master clock
Flexible allocation of 6 LED, 4 PD in each PPG
phase
•
•
•
•
•
Automatic cancellation of DC from ambient, LED
FIFO with 128-sample depth
•
•
Synchronized PPG/ECG signal acquisition with
each phase configurable as PPG or ECG, and at
different data rates
I2C interface
Synchronized PPG/ECG supports up to 1 kHz
data rate
2.6-mm × 2.1-mm DSBGA, 0.4-mm pitch
Supplies: Rx: 1.7 V-1.9 V (LDO bypass); 1.9 V-3.6
V (LDO enabled), Tx: 3 V-5.5 V, IO: 1.7-3.6 V
•
•
ECG-only mode supports up to 4 kHz data rate
PPG signal chain:
•
Supports operation with 2 supplies - 1.8 V, 5 V
–
–
System SNR up to 108-dB at 16 μA PD current
2 Applications
Low current for continuous operation on a
wearable device with a typical value: 15 μA for
an LED, 20 μA for the receiver
•
•
ECG on a wearable device
Synchronized PPG, ECG for PTT-based Blood
pressure
•
PPG Transmitter:
•
Optical heart-rate monitoring (HRM) and Heart-
rate variability (HRV) for wearables, hearables
–
–
Supports common anode LED configuration
8-Bit programmable LED current with range
adjustable from 25 mA to 250 mA
•
•
Pulse oximetry (SpO2) measurements
Maximum oxygen consumption (VO2 Max)
–
Mode to fire two LEDs in parallel with
independent per-phase current control
3 Description
–
–
Programmable LED on-time per-phase
The AFE49I30 is an analog front-end for optical bio-
sensing/ PPG and ECG measurement applications.
The device supports up to six switching light-emitting
diodes (LEDs) and up to four photodiodes. Up to 24
signal phases can be defined and the PPG or ECG
signals can be acquired from each phase in a
synchronized manner.
Simultaneous support of 6 LEDs for SpO2,
HRM, or multi-wavelength HRM
•
PPG Receiver:
–
–
Supports 4 time-multiplexed photodiode inputs
2 parallel receivers to sample two PD channels
simultaneously
Device Information(1)
–
–
Individual ambient offset subtraction DAC at
each TIA Input with 8-bit per-phase control and
range adjustable up to 255-μA
PART NUMBER
PACKAGE
BODY SIZE (NOM)
AFE49I30
DSBGA (30)
2.60 mm × 2.10 mm
Individual LED offset subtraction DAC at each
TIA input with 5-bit per-phase control and
15.5-µA range
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Simplified Schematic
–
–
–
Close to 100 dB ambient rejection up to 10 Hz
Noise filtering with programmable bandwidth
Transimpedance Gain: 3.7 kΩ to 1 MΩ
•
ECG Signal Chain
–
–
–
1-lead ECG with RLD output for bias
INA gain programmable from 1.6 – 13
<1 µVrms input noise (in a 1-150 Hz
bandwidth) at 4-kHz sample rate
–
–
Integrated 450 Hz Low Pass Filter
AC, DC lead-off detect with 3.125-100 nA
current and programmable interrupt
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.
AFE49I30
SBASA49 –MAY 2020
www.ti.com
4 Device and Documentation Support
4.1 Receiving Notification of Documentation Updates
To receive notification of documentation updates, navigate to the device product folder on ti.com. In the upper
right corner, click on Alert me to register and receive a weekly digest of any product information that has
changed. For change details, review the revision history included in any revised document.
4.2 Support Resources
TI E2E™ support forums are an engineer's go-to source for fast, verified answers and design help — straight
from the experts. Search existing answers or ask your own question to get the quick design help you need.
Linked content is provided "AS IS" by the respective contributors. They do not constitute TI specifications and do
not necessarily reflect TI's views; see TI's Terms of Use.
4.3 Trademarks
E2E is a trademark of Texas Instruments.
All other trademarks are the property of their respective owners.
4.4 Electrostatic Discharge Caution
This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with
appropriate precautions. Failure to observe proper handling and installation procedures can cause damage.
ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more
susceptible to damage because very small parametric changes could cause the device not to meet its published specifications.
4.5 Glossary
SLYZ022 — TI Glossary.
This glossary lists and explains terms, acronyms, and definitions.
5 Mechanical, Packaging, and Orderable Information
The following pages include mechanical, packaging, and orderable information. This information is the most
current data available for the designated devices. This data is subject to change without notice and revision of
this document. For browser-based versions of this data sheet, refer to the left-hand navigation.
2
Submit Documentation Feedback
Copyright © 2020, Texas Instruments Incorporated
Product Folder Links: AFE49I30
PACKAGE OPTION ADDENDUM
www.ti.com
10-Dec-2020
PACKAGING INFORMATION
Orderable Device
Status Package Type Package Pins Package
Eco Plan
Lead finish/
Ball material
MSL Peak Temp
Op Temp (°C)
Device Marking
Samples
Drawing
Qty
(1)
(2)
(3)
(4/5)
(6)
AFE49I30YZR
AFE49I30YZT
ACTIVE
ACTIVE
DSBGA
DSBGA
YZ
YZ
30
30
3000 RoHS & Green
250 RoHS & Green
SAC396
Level-1-260C-UNLIM
Level-1-260C-UNLIM
-40 to 85
-40 to 85
AFE49I30
AFE49I30
SAC396
(1) The marketing status values are defined as follows:
ACTIVE: Product device recommended for new designs.
LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.
NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design.
PREVIEW: Device has been announced but is not in production. Samples may or may not be available.
OBSOLETE: TI has discontinued the production of the device.
(2) RoHS: TI defines "RoHS" to mean semiconductor products that are compliant with the current EU RoHS requirements for all 10 RoHS substances, including the requirement that RoHS substance
do not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, "RoHS" products are suitable for use in specified lead-free processes. TI may
reference these types of products as "Pb-Free".
RoHS Exempt: TI defines "RoHS Exempt" to mean products that contain lead but are compliant with EU RoHS pursuant to a specific EU RoHS exemption.
Green: TI defines "Green" to mean the content of Chlorine (Cl) and Bromine (Br) based flame retardants meet JS709B low halogen requirements of <=1000ppm threshold. Antimony trioxide based
flame retardants must also meet the <=1000ppm threshold requirement.
(3) MSL, Peak Temp. - The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature.
(4) There may be additional marking, which relates to the logo, the lot trace code information, or the environmental category on the device.
(5) Multiple Device Markings will be inside parentheses. Only one Device Marking contained in parentheses and separated by a "~" will appear on a device. If a line is indented then it is a continuation
of the previous line and the two combined represent the entire Device Marking for that device.
(6)
Lead finish/Ball material - Orderable Devices may have multiple material finish options. Finish options are separated by a vertical ruled line. Lead finish/Ball material values may wrap to two
lines if the finish value exceeds the maximum column width.
Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI 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. TI 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.
TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for release.
In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI to Customer on an annual basis.
Addendum-Page 1
PACKAGE OPTION ADDENDUM
www.ti.com
10-Dec-2020
Addendum-Page 2
PACKAGE MATERIALS INFORMATION
www.ti.com
14-May-2020
TAPE AND REEL INFORMATION
*All dimensions are nominal
Device
Package Package Pins
Type Drawing
SPQ
Reel
Reel
A0
B0
K0
P1
W
Pin1
Diameter Width (mm) (mm) (mm) (mm) (mm) Quadrant
(mm) W1 (mm)
AFE49I30YZR
AFE49I30YZT
DSBGA
DSBGA
YZ
YZ
30
30
3000
250
178.0
178.0
9.2
9.2
2.27
2.27
2.72
2.72
0.78
0.78
4.0
4.0
8.0
8.0
Q1
Q1
Pack Materials-Page 1
PACKAGE MATERIALS INFORMATION
www.ti.com
14-May-2020
*All dimensions are nominal
Device
Package Type Package Drawing Pins
SPQ
Length (mm) Width (mm) Height (mm)
AFE49I30YZR
AFE49I30YZT
DSBGA
DSBGA
YZ
YZ
30
30
3000
250
220.0
220.0
220.0
220.0
35.0
35.0
Pack Materials-Page 2
IMPORTANT NOTICE AND DISCLAIMER
TI PROVIDES TECHNICAL AND RELIABILITY DATA (INCLUDING DATASHEETS), DESIGN RESOURCES (INCLUDING REFERENCE
DESIGNS), APPLICATION OR OTHER DESIGN ADVICE, WEB TOOLS, SAFETY INFORMATION, AND OTHER RESOURCES “AS IS”
AND WITH ALL FAULTS, AND DISCLAIMS ALL WARRANTIES, EXPRESS AND IMPLIED, INCLUDING WITHOUT LIMITATION ANY
IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT OF THIRD
PARTY INTELLECTUAL PROPERTY RIGHTS.
These resources are intended for skilled developers designing with TI products. You are solely responsible for (1) selecting the appropriate
TI products for your application, (2) designing, validating and testing your application, and (3) ensuring your application meets applicable
standards, and any other safety, security, or other requirements. These resources are subject to change without notice. TI grants you
permission to use these resources only for development of an application that uses the TI products described in the resource. Other
reproduction and display of these resources is prohibited. No license is granted to any other TI intellectual property right or to any third
party intellectual property right. TI disclaims responsibility for, and you will fully indemnify TI and its representatives against, any claims,
damages, costs, losses, and liabilities arising out of your use of these resources.
TI’s products are provided subject to TI’s Terms of Sale (www.ti.com/legal/termsofsale.html) or other applicable terms available either on
ti.com or provided in conjunction with such TI products. TI’s provision of these resources does not expand or otherwise alter TI’s applicable
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Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265
Copyright © 2020, Texas Instruments Incorporated
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