Datasheet > MAX86174B

MAX86174B

更新时间： 2023-12-20 18:44:00

品牌	Logo	应用领域
亚德诺 - ADI		传感器
页数	文件大小	规格书
87页	1756K
描述
出色的光学脉搏血氧仪和心率传感器AFE，助力实现可穿戴健康

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中文翻译

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数据手册

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MAX86174B 数据手册

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Best-in-Class Optical Pulse Oximeter and

Heart-Rate Sensor AFE for Wearable Health

MAX86174A/MAX86174B

General Description

Benefits and Features

The MAX86174A/MAX86174B are ultra-low-power optical

data acquisition systems with both transmit and receive

channels. On the transmitter side, the MAX86174A/

MAX86174B have four LED driver output pins. Each pin

is programmable from two, high-current, 8-bit LED drivers.

On the receiver side, the MAX86174A consists of two op-

tical readout channels that can operate simultaneously

while the MAX86174B has a single optical readout chan-

nel. The devices have low-noise, charge-integrating ana-

log front-end, 20-bit ADC, and best-in-class ambient-light

cancellation (ALC) circuits.

● Complete Optical Data Acquisition System

● Ultra-Low-Power Operation for Body Wearable

Devices

• Low-Power-Operation, Optical Readout Channel <

11μA (typ) at 25fps

• Exposure Integration Period Ranging from 14.6μs

to 117.1μs

• Low Shutdown Current < 1μA (typ)

● Excellent Top-End Dynamic Range > 93dB in White

Card Loop-Back Test (Nyquist Sample-to-Sample

Variance)

Due to the low power consumption, compact size, ease

and flexibility of use, the MAX86174A/MAX86174B are

ideal for a wide variety of optical sensing applications such

as pulse oximetry and heart-rate detection.

● Extended Dynamic Range up to 111dB (Averaging

and Off-Chip Filtering) to Enable SpO on Wrist/Chest

for Low Perfusion Cases

● Support Frame Rates from 1fps to 2048fps

● High-Resolution 20-Bit Charge-Integrating ADCs

● Support Both Burst Averaging and Decimation

Averaging Modes

● On-Chip 12Hz Low-Pass Filter for Improved SNR and

Reduced Power for Continuous Heart-Rate

Measurement

● Supports Two PD Inputs for Multi-Parameter

Measurements

● Supports Four LED Driver Output Pins Generated

from Two 8-Bit LED Current Drivers

The MAX86174A/MAX86174B operate on a 1.8V main

supply voltage and a 2.7V to 5.5V LED driver supply

voltage. The devices support both I C- and SPI-compat-

ible interfaces in a fully autonomous way. The devices

have a large 256-word built-in FIFO. The MAX86174A/

MAX86174B are available in a compact 16-WLP package.

Applications

● Wearable Devices for Fitness, Wellness and Medical

Applications

● Clinical Accuracy

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

● Optimized Performance to Detect

• Optical Heart Rate

● Low Dark-Current Noise of < 50pA

(Sample-to-

RMS

Sample Variance in 117.1μs Integration Time)

● Excellent Ambient Range and Rejection Capability

• 200μA Ambient Photodiode Current

• > 70dB Ambient Rejection at 120Hz (Burst Average

> 2)

• Heart-Rate Variability

• Oxygen Saturation (SpO )

• Body Hydration

• Muscle and Tissue Oxygen Saturation (SmO and

● Miniature 1.67mm x 1.78mm, 0.4mm Ball Pitch, 4 x 4

WLP Package

StO )

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

• Maximum Oxygen Consumption (VO2 Max)

19-100999; Rev 2; 7/23

Ordering Information appears at end of datasheet.

12 3 4 5 6 7...87

中文翻译

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与MAX86174B相关器件

型号	品牌	获取价格	描述	数据表
MAX86176	ADI	获取价格	超低功耗、光学PPG和单导联ECG AFE
MAX86178	ADI	获取价格	超低功耗临床级生命体征
MAX86180	ADI	获取价格	用于多波长光谱学的高 SNR 双通道 AFE
MAX861C/D	MAXIM	获取价格	50mA, Frequency-Selectable, Switched-Capacitor Voltage Converters
MAX861CSA	MAXIM	获取价格	DC-to-DC Voltage Converter
MAX861CSA+	MAXIM	获取价格	Switched Capacitor Converter, 0.06A, 250kHz Switching Freq-Max, CMOS, PDSO8, 0.150 INCH, L
MAX861CSA+T	MAXIM	获取价格	Switched Capacitor Converter, 250kHz Switching Freq-Max, CMOS, PDSO8, 0.150 INCH, PLASTIC,
MAX861CSA-T	MAXIM	获取价格	Switched Capacitor Converter, 250kHz Switching Freq-Max, CMOS, PDSO8, 0.150 INCH, PLASTIC,
MAX861CUA	MAXIM	获取价格	DC-to-DC Voltage Converter
MAX861CUA+	MAXIM	获取价格	Switched Capacitor Converter, 250kHz Switching Freq-Max, CMOS, PDSO8, 1.11 MM HEIGHT, LEAD

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