MAX86170B数据手册集成电路（IC）的ADC/DAC-特殊用途规格书PDF

描述 Description

The MAX86170B is an ultra-low-power optical data acquisition system with both transmit and receive channels. On the transmitter side, the MAX86170B has four LED driver output pins, programmable from three high-current, 8-bit LED drivers. On the receiver side, MAX86170B has a low-noise charge integrating front-end that includes a 20-bit ADC and best-in-class ambient light cancellation (ALC) circuit, producing the highest performing integrated optical data acquisition system on the market today. Due to its low power consumption, compact size, ease- and flexibility-of-use, the MAX86170B is ideal for a wide variety of optical sensing applications such as pulse oximetry and heart rate detection. The MAX86170B operates on a 1.8V main supply voltage and a 3.1V to 5.5V LED driver supply voltage. The device supports both I2C- and SPI-compatible interfaces in a fully autonomous way. The device has a large 256-word built-in FIFO. The MAX86170B is available in a compact WLP package 2.78 x 1.71mm with 6 x 4, 0.4mm ball pitch.

特性 Features

• Complete Single-Channel Optical Data Acquisition System
• Ultra Low-Power Operation for Wearable Devices
• Low-Power Operation, Optical Readout Channel

• Excellent Top-End Dynamic Range > 91dB in White Card Loop-Back Test (Nyquist Sample-to-Sample Variance)
• Extended Dynamic Range up to 110dB (Averaging and Off-Chip Filtering)
• Supports Frame Rates from 1fps to 2.9kfps
• High Resolution 20-Bit Charge Integrating ADC
• Supports Two PD Inputs for Multiparameter Measurements
• Supports Four LED Driver Output Pins Generated from Three 8-Bit LED Current Drivers
• Low Dark Current Noise of
• 200µA Ambient Photodetector Current
• > 70dB Ambient Rejection at 120Hz

• Miniature 2.78mm x 1.71mm 6 x 4, 0.4mm Ball Pitch WLP Package•-40°C to +85°C Operating Temperature Range

应用 Application

• 光学心率检测
• 心率变异
• 血氧饱和度 (SpO2)
• 身体含水量
• 肌肉和组织氧饱和度( (SmO2 and StO2)
• 最大耗氧量 (VO2 max)

简介

MAX86170B属于集成电路（IC）的ADC/DAC-特殊用途。由制造生产的MAX86170BADC/DAC - 特殊用途该产品族中的产品可用于模拟和数字表示的信息转换，适用于特定用例，或集成了通用数据转换器中不常见的其他功能。例如针对超声或汽车雷达应用集成了低噪声放大器和可变增益级的器件、注重音频和视频的产品、在段码式显示器上集成显示测量值功能的器件、集成输入输出电气隔离的器件等。