AFE4900YZR [TI]
适用于可穿戴光学和电生物传感的超低功耗集成型 AFE | YZ | 30 | -20 to 70;型号: | AFE4900YZR |
厂家: | TEXAS INSTRUMENTS |
描述: | 适用于可穿戴光学和电生物传感的超低功耗集成型 AFE | YZ | 30 | -20 to 70 |
文件: | 总13页 (文件大小:1035K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
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AFE4900
ZHCSGI0B –AUGUST 2017–REVISED JULY 2019
适用于可穿戴光学、电生物传感且具有 FIFO 的 AFE4900 超低功耗、集成
式 AFE
1 特性
2 应用
1
•
以高达 1kHz 的数据速率进行同步 PPG、ECG 信
号采集
•
•
•
•
用于血压估算的同步 PPG、ECG
HRM(可穿戴设备和智能耳戴式设备)
心率变异分析 (HRV)
•
ECG 信号链:
–
–
–
–
高达 4kHz 的独立 ECG 采集
脉动式血氧计 (SpO2) 测量
输入偏置:具有 RLD 偏置的单引线 ECG
可编程 INA 增益:2.15 至 12.92
3 说明
AFE4900 器件是一款用于同步心电图 (ECG)、光电血
管容积图 (PPG) 信号采集的模拟前端 (AFE)。该器件
还可用于光学生物传感 应用,例如心率监测 (HRM) 和
周围毛细血管氧饱和度 (SpO2) 测量。PPG 信号链支
持多达四个可切换发光二极管 (LED) 以及多达三个光
电二极管 (PD)。LED 可以使用完全集成的 LED 驱动
器打开。光电二极管的电流通过互阻抗放大器 (TIA) 转
换为电压,并使用模数转换器 (ADC) 进行数字化。
ECG 信号链具有一个连接至同一 ADC 的仪表放大器
(INA),该放大器具有可编程增益。右腿驱动 (RLD) 放
大器组可用于 ECG 输入引脚的偏置。支持交流和直流
导联脱落检测方案。来自 PPG 和 ECG 相位的 ADC
代码可以存储在 128 样本先进先出 (FIFO) 块中,并使
用 I2C 或串行外设接口 (SPI) 接口进行读取。
输入噪声(1Hz 至 150Hz):1 kHz 数据率下
为 2.5µVrms,4kHz 数据率下为 1.25µVrms
–
–
交流、直流导联脱落检测:12.5nA 至 100nA
申请获得 IEC 60601 测试报告
•
PPG 接收器:
–
–
–
支持三路时分多路复用 PD 输入
来自 PD 的电流的 24 位表示
TIA 输入端的直流偏移消减 DAC(高达 ±
126µA),用于每个 LED 和环境
–
–
–
–
–
ADC 输出端的数字环境消减
具有可编程带宽的噪声滤波器
跨阻增益:10kΩ 至 2MΩ
高达 100dB 的动态范围
接收器在仅 PPG 模式下以大约 1μA/Hz 的采样
率运行
器件信息(1)
–
断电模式:大约 0μA
器件型号
AFE4900
封装
封装尺寸(标称值)
•
PPG 发送器:
DSBGA (30)
2.60mm × 2.10mm
–
–
–
–
–
四个采用共阳极配置的 LED
高达 200mA 的 8 位 LED 电流
并行点亮两个 LED 的模式
可编程 LED 导通时间
(1) 如需了解所有可用封装,请参阅数据表末尾的封装选项附录。
空白
简化框图
同时支持三个 LED,适用于 SpO2 或多波长
TX_SUP
HRM
LED1
LED2
LED3
LED4
RX_SUP
CONTROL1
TX2
TX_ SUP
TX1
TX3
TX4
Offset DAC
–
平均电流为 30μA,适用于
典型的心率监测情形:
INP1
INM1
Cf
1.8-V LDOs
ALDO_1V8, DLDO_1V8
PD1
ILED
Rf
TIA
Rf
Noise Reduction
filter (x4)
INP2
INM2
PD2
–
20mA 设置、60μs 脉冲持续时间、
25Hz 采样率
Threshold
Detection
THR_DET_RDY
I2C_SPI_SEL
Decimation
ADC
Cf
SPI
I2C
SPI/
I2C Interface
FIFO
INP3
INM3
RESETZ
PD3
•
•
•
•
•
使用外部或内部时钟进行计时
ADC_RDY
4 MHz
Oscillator
Timing Engine
PROG_OUT1
INA
INP_ECG
用于 ECG 和 PPG 且具有 128 样本深度的 FIFO
I2C、SPI 接口:可通过引脚进行选择
2.6mm × 2.1mm、0.4mm 间距 DSBGA 封装
电源:
128 kHz
Oscillator
AC/DC
Lead-off
Detect
CLK
INM_ECG
RLD_OUT
ENABLE_PTT
–
Rx: 1.8V 至 1.9V(LDO 旁路),
2.0V 至 3.6V(LDO 使能)
–
–
Tx:3V 至 5.25V
IO:1.7V 至 Rx_SUP
1
本文档旨在为方便起见,提供有关 TI 产品中文版本的信息,以确认产品的概要。 有关适用的官方英文版本的最新信息,请访问 www.ti.com,其内容始终优先。 TI 不保证翻译的准确
性和有效性。 在实际设计之前,请务必参考最新版本的英文版本。
English Data Sheet: SBAS861
AFE4900
ZHCSGI0B –AUGUST 2017–REVISED JULY 2019
www.ti.com.cn
4 修订历史记录
注:之前版本的页码可能与当前版本有所不同。
Changes from Revision A (February 2019) to Revision B
Page
•
•
已更改 更改了可编程 INA 增益的数值(位于特性 部分) ...................................................................................................... 1
更改了机械封装 图像 .............................................................................................................................................................. 5
Changes from Original (August 2017) to Revision A
Page
•
•
已更改 更改了可编程 INA 增益的数值(位于特性 部分) ...................................................................................................... 1
已添加 添加了“申请获得 IEC 60601 测试报告”(位于特性 部分)......................................................................................... 1
2
版权 © 2017–2019, Texas Instruments Incorporated
AFE4900
www.ti.com.cn
ZHCSGI0B –AUGUST 2017–REVISED JULY 2019
5 器件和文档支持
5.1 接收文档更新通知
要接收文档更新通知,请导航至 ti.com.cn 上的器件产品文件夹。单击右上角的通知我进行注册,即可每周接收产
品信息更改摘要。有关更改的详细信息,请查看任何已修订文档中包含的修订历史记录。
5.2 社区资源
The following links connect to TI community resources. Linked contents are 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.
TI E2E™ Online Community TI's Engineer-to-Engineer (E2E) Community. Created to foster collaboration
among engineers. At e2e.ti.com, you can ask questions, share knowledge, explore ideas and help
solve problems with fellow engineers.
Design Support TI's Design Support Quickly find helpful E2E forums along with design support tools and
contact information for technical support.
5.3 商标
E2E is a trademark of Texas Instruments.
All other trademarks are the property of their respective owners.
5.4 静电放电警告
ESD 可能会损坏该集成电路。德州仪器 (TI) 建议通过适当的预防措施处理所有集成电路。如果不遵守正确的处理措施和安装程序 , 可
能会损坏集成电路。
ESD 的损坏小至导致微小的性能降级 , 大至整个器件故障。 精密的集成电路可能更容易受到损坏 , 这是因为非常细微的参数更改都可
能会导致器件与其发布的规格不相符。
5.5 Glossary
SLYZ022 — TI Glossary.
This glossary lists and explains terms, acronyms, and definitions.
版权 © 2017–2019, Texas Instruments Incorporated
3
AFE4900
ZHCSGI0B –AUGUST 2017–REVISED JULY 2019
www.ti.com.cn
6 机械、封装和可订购信息
以下页面包含机械、封装和可订购信息。这些信息是指定器件的最新可用数据。数据如有变更,恕不另行通知,且
不会对此文档进行修订。如需获取此数据表的浏览器版本,请查阅左侧的导航栏。
4
版权 © 2017–2019, Texas Instruments Incorporated
AFE4900
www.ti.com.cn
ZHCSGI0B –AUGUST 2017–REVISED JULY 2019
PACKAGE OUTLINE
YZ0030-C01
DSBGA - 0.5 mm max height
SCALE 5.000
DIE SIZE BALL GRID ARRAY
2.095
2.035
A
B
BALL A1
CORNER
2.595
2.535
0.5 MAX
C
SEATING PLANE
0.05 C
BALL TYP
0.19
0.13
1.6
TYP
0.85
F
E
D
C
B
A
2
TYP
SYMM
0.4
TYP
1
2
3
4
5
0.25
0.21
30X
PKG
0.015
C A B
0.4 TYP
4222550/D 07/2019
NOTES:
1. All linear dimensions are in millimeters. Any dimensions in parenthesis are for reference only. Dimensioning and tolerancing
per ASME Y14.5M.
2. This drawing is subject to change without notice.
www.ti.com
版权 © 2017–2019, Texas Instruments Incorporated
5
AFE4900
ZHCSGI0B –AUGUST 2017–REVISED JULY 2019
www.ti.com.cn
EXAMPLE BOARD LAYOUT
YZ0030-C01
DSBGA - 0.5 mm max height
DIE SIZE BALL GRID ARRAY
(0.85)
(0.4) TYP
30X ( 0.23)
(0.4) TYP
1
3
2
4
5
A
B
C
PKG SYMM
D
E
F
PKG
LAND PATTERN EXAMPLE
SCALE:30X
( 0.23)
METAL
0.05 MAX
0.05 MIN
METAL UNDER
SOLDER MASK
(
0.23)
SOLDER MASK
OPENING
SOLDER MASK
OPENING
NON-SOLDER MASK
DEFINED
(PREFERRED)
SOLDER MASK
DEFINED
SOLDER MASK DETAILS
NOT TO SCALE
4222550/D 07/2019
NOTES: (continued)
3. Final dimensions may vary due to manufacturing tolerance considerations and also routing constraints.
See Texas Instruments Literature No. SNVA009 (www.ti.com/lit/snva009).
www.ti.com
6
版权 © 2017–2019, Texas Instruments Incorporated
AFE4900
www.ti.com.cn
ZHCSGI0B –AUGUST 2017–REVISED JULY 2019
EXAMPLE STENCIL DESIGN
YZ0030-C01
DSBGA - 0.5 mm max height
DIE SIZE BALL GRID ARRAY
(0.85)
(0.4) TYP
30X ( 0.25)
(R0.05) TYP
(0.4) TYP
4
5
1
2
3
A
B
C
D
METAL
TYP
PKG SYMM
E
F
PKG
SOLDER PASTE EXAMPLE
BASED ON 0.1 mm THICK STENCIL
SCALE:35X
4222550/D 07/2019
NOTES: (continued)
4. Laser cutting apertures with trapezoidal walls and rounded corners may offer better paste release.
www.ti.com
版权 © 2017–2019, Texas Instruments Incorporated
7
重要声明和免责声明
TI 均以“原样”提供技术性及可靠性数据(包括数据表)、设计资源(包括参考设计)、应用或其他设计建议、网络工具、安全信息和其他资
源,不保证其中不含任何瑕疵,且不做任何明示或暗示的担保,包括但不限于对适销性、适合某特定用途或不侵犯任何第三方知识产权的暗示
担保。
所述资源可供专业开发人员应用TI 产品进行设计使用。您将对以下行为独自承担全部责任:(1) 针对您的应用选择合适的TI 产品;(2) 设计、
验证并测试您的应用;(3) 确保您的应用满足相应标准以及任何其他安全、安保或其他要求。所述资源如有变更,恕不另行通知。TI 对您使用
所述资源的授权仅限于开发资源所涉及TI 产品的相关应用。除此之外不得复制或展示所述资源,也不提供其它TI或任何第三方的知识产权授权
许可。如因使用所述资源而产生任何索赔、赔偿、成本、损失及债务等,TI对此概不负责,并且您须赔偿由此对TI 及其代表造成的损害。
TI 所提供产品均受TI 的销售条款 (http://www.ti.com.cn/zh-cn/legal/termsofsale.html) 以及ti.com.cn上或随附TI产品提供的其他可适用条款的约
束。TI提供所述资源并不扩展或以其他方式更改TI 针对TI 产品所发布的可适用的担保范围或担保免责声明。IMPORTANT NOTICE
邮寄地址:上海市浦东新区世纪大道 1568 号中建大厦 32 楼,邮政编码:200122
Copyright © 2020 德州仪器半导体技术(上海)有限公司
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)
AFE4900YZR
AFE4900YZT
ACTIVE
ACTIVE
DSBGA
DSBGA
YZ
YZ
30
30
3000 RoHS & Green
250 RoHS & Green
SAC396
Level-1-260C-UNLIM
Level-1-260C-UNLIM
-20 to 70
-20 to 70
AFE4900
AFE4900
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
18-Jan-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)
AFE4900YZR
AFE4900YZT
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
18-Jan-2020
*All dimensions are nominal
Device
Package Type Package Drawing Pins
SPQ
Length (mm) Width (mm) Height (mm)
AFE4900YZR
AFE4900YZT
DSBGA
DSBGA
YZ
YZ
30
30
3000
250
220.0
220.0
220.0
220.0
35.0
35.0
Pack Materials-Page 2
重要声明和免责声明
TI 均以“原样”提供技术性及可靠性数据(包括数据表)、设计资源(包括参考设计)、应用或其他设计建议、网络工具、安全信息和其他资
源,不保证其中不含任何瑕疵,且不做任何明示或暗示的担保,包括但不限于对适销性、适合某特定用途或不侵犯任何第三方知识产权的暗示
担保。
所述资源可供专业开发人员应用TI 产品进行设计使用。您将对以下行为独自承担全部责任:(1) 针对您的应用选择合适的TI 产品;(2) 设计、
验证并测试您的应用;(3) 确保您的应用满足相应标准以及任何其他安全、安保或其他要求。所述资源如有变更,恕不另行通知。TI 对您使用
所述资源的授权仅限于开发资源所涉及TI 产品的相关应用。除此之外不得复制或展示所述资源,也不提供其它TI或任何第三方的知识产权授权
许可。如因使用所述资源而产生任何索赔、赔偿、成本、损失及债务等,TI对此概不负责,并且您须赔偿由此对TI 及其代表造成的损害。
TI 所提供产品均受TI 的销售条款 (http://www.ti.com.cn/zh-cn/legal/termsofsale.html) 以及ti.com.cn上或随附TI产品提供的其他可适用条款的约
束。TI提供所述资源并不扩展或以其他方式更改TI 针对TI 产品所发布的可适用的担保范围或担保免责声明。IMPORTANT NOTICE
邮寄地址:上海市浦东新区世纪大道 1568 号中建大厦 32 楼,邮政编码:200122
Copyright © 2020 德州仪器半导体技术(上海)有限公司
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