Datasheet > MAX86141

MAX86141

更新时间： 2024-02-18 11:03:12

品牌	Logo	应用领域
美信 - MAXIM		/
页数	文件大小	规格书
89页	1439K
描述
Complete Single and Dual-Channel Optical Data Acquisition System

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技术参数
数据手册

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MAX86141 技术参数

是否Rohs认证：	符合	生命周期：	Active
包装说明：	,	Reach Compliance Code：	compliant
Factory Lead Time：	18 weeks	风险等级：	1.76
Samacsys Description：	Biometric Sensors Optical AFE Optimized for HR on Wrist Applications.	商用集成电路类型：	CONSUMER CIRCUIT
峰值回流温度（摄氏度）：	NOT SPECIFIED	处于峰值回流温度下的最长时间：	NOT SPECIFIED

MAX86141 数据手册

MAX86140/

MAX86141

Best-in-Class Optical Pulse Oximeter and

Heart-Rate Sensor for Wearable Health

General Description

Beneﬁts and Features

The MAX86140/MAX86141 are ultra-low-power, com-

pletely integrated, optical data acquisition systems. On

the transmitter side, the MAX86140/MAX86141 have

three programmable high-current LED drivers that

can be configured to drive up to six LEDs. With two

MAX86140/MAX86141 devices working in master-slave

mode, the LED drivers can drive up to twelve LEDs.

On the receiver side, MAX86140 consists of a single

opticalreadoutchannels,whiletheMAX86141hastwoopti-

cal readout channels that can operate simultaneously. The

devices have low-noise signal conditioning analog front-

end (AFE) including 19-bit ADC, an industry-lead ambient

light cancellation (ALC) circuit, and a picket fence detect

and replace algorithm. Due to the low power consumption,

compact size, easy/flexible-to-use and industry-lead ambient

light rejection capability of MAX86140/MAX86141, the

devices are ideal for a wide variety of optical-sensing

applications, such as pulse oximetry and heart rate detection.

● Complete Single and Dual-Channel Optical Data

Acquisition System

● Built-in Algorithm Further Enhances Rejection of Fast

Ambient Transients

● Optimized Architecture for Transmissive and

Reflective Heart Rate or SpO Monitoring

● Low Dark Current Noise of < 50pA RMS (Sample to

Sample Variance)

● Lower Effective Dark Current Noise Achievable Through

Multiple Sample Modes and On-Chip Averaging

● High-Resolution, 19-Bit Charge Integrating ADC

● Three Low-Noise, 8-Bit LED Current DACs

● Excellent Dynamic Range > 90dB in White Card

Loop-Back Test (Sample-to-Sample Variance)

● Dynamic Range Extendable to > 104dB for SpO

and > 110dB for HRM with Multiple Sample Modes

and On-Chip Averaging

The MAX86140/MAX86141 operate on a 1.8V main

supply voltage and a 3.1~5.5V LED driver supply voltage.

Both devices support a standard SPI compatible interface

and fully autonomous operation. Each device has a large

128-word built-in FIFO. The MAX86140/MAX86141 is

available in compact wafer-level package (WLP) (2.048 x

1.848mm) with 0.4mm ball pitch.

● Excellent Ambient Range and Rejection Capability

• > 100μA Ambient Photodetector Current

• > 70dB Ambient Rejection at 120Hz

● Ultra-Low-Power Operation for Body Wearable Devices

• Low-Power Operation, Optical Readout Channel

< 10μA (typ) at 25sps

• Short Exposure Integration Period of 14.8μs,

29.4μs, 58.7μs, 117.3μs

• Low Shutdown Current = 20μW (typ)

Applications

● Wearable Devices for Fitness, Wellness and Medical

Applications

● Built-in Algorithm Further Enhances Rejection of Fast

Ambient Transients

● Miniature 2.048 x 1.848mm, 5 x 4 0.4mm Ball Pitch WLP

● Optimized for Wrist, Finger, Ear, and Other Locations

● Optimized Performance to Detect

• Optical Heart Rate

● -40°C to +85°C Operating Temperature Range

• Oxygen Saturation (SpO )

• Muscle Oxygen Saturation (SmO and StO )

Ordering Information appears at end of data sheet.

19-100051; Rev 1; 8/17

12 3 4 5 6 7...89

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与MAX86141相关器件

型号	品牌	获取价格	描述	数据表
MAX8614A	MAXIM	获取价格	Dual-Output (+ and -) DC-DC
MAX8614AETD	MAXIM	获取价格	Dual-Output (+ and -) DC-DC
MAX8614AETD+	MAXIM	获取价格	Switching Controller, Current-mode, 0.52A, 1070kHz Switching Freq-Max, BICMOS, 3 X 3 MM, 0
MAX8614AETD+T	ROCHESTER	获取价格	0.52A SWITCHING CONTROLLER, 1070kHz SWITCHING FREQ-MAX, DSO14, 3 X 3 MM, 0.8 MM HEIGHT, LE
MAX8614B	MAXIM	获取价格	Dual-Output (+ and -) DC-DC
MAX8614BATDV	MAXIM	获取价格	Dual-Output ( and -) DC-DC Converters for CCD
MAX8614BETD	MAXIM	获取价格	Dual-Output (+ and -) DC-DC
MAX8614BETD/V+	MAXIM	获取价格	Switching Controller, Current-mode, 0.9A, 1000kHz Switching Freq-Max, BICMOS, TDFN-14
MAX8614BETD+T	MAXIM	获取价格	Switching Regulator/Controller, BICMOS, PDSO14,
MAX86150	ADI	获取价格	集成光电容积脉搏波法和心电图的生物传感器模块，适用于移动健康应用

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