Datasheet > MAX86140

MAX86140

更新时间： 2023-12-20 18:45:34

品牌	Logo	应用领域
亚德诺 - ADI		传感器
页数	文件大小	规格书
90页	1591K
描述
用于可穿戴健康设备的最佳光学脉搏血氧仪和心率传感器

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中文翻译

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数据手册

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MAX86140 数据手册

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Best-in-Class Optical Pulse Oximeter and

Heart-Rate Sensor for Wearable Health

MAX86140/

MAX86141

General Description

Beneﬁts and Features

● Complete Single and Dual-Channel Optical Data

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 using an external

3x2:1 mux. With two MAX86140/MAX86141 devices

working in controller-target mode, the LED drivers can

drive up to twelve LEDs using an external 3x2:1 mux. On

the receiver side, MAX86140 consists of a single optical

readout channel, while the MAX86141 has two optical

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 function. Due to the low power consumption,

compact size, ease of 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.

Acquisition System

● 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 > 89dB 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

● Excellent Ambient Range and Rejection Capability

• > 100μA Ambient Photodetector Current

• > 70dB Ambient Rejection at 120Hz

The MAX86140/MAX86141 operate on a 1.8V main sup-

ply voltage and a 3.1V to 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.

● Ultra-Low-Power Operation for 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 = 0.6μA (typ)

● Rejection of Fast Ambient Transients

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

Applications

● Wearable Devices for Fitness, Wellness and Medical

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

Applications

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

Ordering Information appears at end of data sheet.

● Optimized Performance to Detect

• Optical Heart Rate

• Oxygen Saturation (SpO )

• Muscle Oxygen Saturation (SmO and StO )

19-100051; Rev 5; 7/23

12 3 4 5 6 7...90

中文翻译

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与MAX86140相关器件

型号	品牌	获取价格	描述	数据表
MAX86140ENP+T	MAXIM	获取价格	Consumer Circuit,
MAX86141	MAXIM	获取价格	Complete Single and Dual-Channel Optical Data Acquisition System
MAX86141	ADI	获取价格	用于可穿戴健康设备的最佳光学脉搏血氧仪和心率传感器
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

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