Datasheet > OB1203

OB1203

更新时间： 2024-09-27 14:57:47

品牌	Logo	应用领域
瑞萨 - RENESAS		传感器
页数	文件大小	规格书
72页	1567K
描述
心率、血氧浓度、脉搏血氧仪、接近感应、光和色彩传感器

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中文翻译

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数据手册

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OB1203 数据手册

Heart Rate, Blood Oxygen

OB1203

Concentration, Pulse Oximetry,

Proximity, Light and Color Sensor

Datasheet

Description

Proximity Sensor Features

The Renesas OB1203SD and OB1203LC Sensor Modules

integrate an optical biosensor with proximity sensor and ambient

light sensing features that are desirable for handheld electronic

devices.

Integrated and trimmed LED source, driver, and photodetector

Programmable pulsed LED up to 250mA output current

High resolution (12 to 16 bits)

Object movement detection (in/out) with interrupt pin

Ambient light suppression > 100klx sun light

Crosstalk cancelation (analog and digital)

The OB1203 photoplethysmography (PPG) biosensor integrates

light sources and drivers, analog digital conversion and I2C

communication in a single optical package. Data from the OB1203

biosensor can be used to determine heart rate (HR), oxygen

saturation (SpO2), respiration rate (RR), and heart rate variability

(HRV), a measure of stress.

Short wavelength (blue, green) blocking filter for improved

ambient rejection (OB1203SD)

The OB1203LC features photodiodes admitting light across the

visible and near infrared range, while the OB1203SD features color

filters with RGB color and Lux sensitivity similar to the human eye.

The OB1203SD optical filters provide enhanced immunity to

ambient light for proximity sensing (PS) and PPG measurements.

Physical Characteristics

Industry’s smallest package: 4.2 × 2 × 1.2 mm³14-OSIP

module

Highly reliable and industry-proven OSIP package with

integrated non-allergenic cover glass

The OB1203’s longer wavelength far red (690nm) LED is less

sensitive to the differences between light and dark skin tones than

traditional sensors operating at shorter wavelengths where melanin

absorption is stronger. The far red LED also enables SpO₂

measurements behind visibly dark “IR ink” for aesthetic industrial

designs.

Wide operation temperature: - 40°C to +85°C

Wide supply voltage: 1.7V to 3.6V

Typical active current at minimum duty cycle:

• LS/CS:110µA

• PS: 90µA + LED current (typical ~300µA average)

Low standby current: 2µA typical

Biosensor Features

I2C interface supporting Standard Mode (100kHz) or Fast

Mode (400kHz) communication; 1.8V to 3.3V logic compatible

SpO₂measurement less sensitive to skin color

Industry’s smallest optical biosensor module

Programmable level-based interrupt functions with upper and

lower thresholds for extending battery life

Fully integrated and trimmed module, including two LEDs,

250mA maximum drive current, and photodetectors

Figure 1. 3D Package Rendering

PPG output resolution: 16 to 18 bits

Data stored in 18-bit wide, 32-sample FIFO memory

Integrated averaging function for higher signal-to-noise ratio

(SNR) and data rate reduction

Programmable measurement rate: up to 3200 samples per

second

Light Sensor and Color Sensor*

(OB1203SD) Features

Output resolution: 13 to 20 bits, 3 gain modes

Very stable spectral response over angle of light incidence

*High lux accuracy over different light sources

*Absolute sensitivity: 0.06 lux to > 150000 lux

*Four parallel channels (red, green, blue, clear)

*Accurate Correlated Color Temperature (CCT)

*Accurate CIE 1931 XYZ (RGB) color measurement

July 22, 2022

12 3 4 5 6 7...72

中文翻译

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与OB1203相关器件

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OB2211CP	ETC	获取价格	Primary-Side Regulation PWM Power Switch
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OB2212	ETC	获取价格	Primary-Side Regulation PWM Power Switch
OB2212AP	ETC	获取价格	Primary-Side Regulation PWM Power Switch
OB2212APO	ETC	获取价格	Primary-Side Regulation PWM Power Switch
OB2216	ETC	获取价格	一次侧控制PWM功率开关，昂宝电子-开关电源芯片

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