Texas Instruments OPT3002光数字传感器
Texas Instruments OPT3002 光数字传感器可在单个器件内提供光功率计的功能。该光学传感器显著提升光电二极管和光敏电阻的系统性能。OPT3002 具有宽光谱带宽，范围介于 300nm-1000nm 之间。凭借内置的满量程设置功能，无需手动选择满量程范围即可在 1.2nW/cm2 至最高 10mW/cm2范围内进行测量。该功能允许在 23 位有效动态范围内进行光测量。测量结果中的暗电流效应及其他温度变化会得到相应补偿。OPT3002 属于全集成型器件，可通过兼容 I2C 和 SMBus 的双线制串行接口直接提供光学功率读数。测量方式有连续测量和单次测量两种。由1.8V电源供电时，OPT3002以0.8SPS速率完全运行的功耗低至0.8µW。
特性
- 300nm to 1000nm wide optical spectrum
- The automatic full-scale setting feature simplifies software and configuration
- Measurement levels
- 1.2nW/cm2 to 10mW/cm2
- 23-bit effective dynamic range with automatic gain ranging
- 12 binary-weighted, full-scale range settings
- 0.2% (typ.) matching between ranges
- 1.8µA (typ.) low operating current
- –40°C to +85°C operating temperature
- 1.6V to 3.6V wide power-supply
- 5.5V tolerant I/O
- Flexible interrupt system
- 2.0mm × 2.0mm × 0.65mm small form factor
应用
- Intrusion and door-open detection systems
- System wakeup circuits
- Medical and scientific instrumentation
- Display backlight controls
- Lighting control systems
- Tablet and notebook computers
- Thermostats and home automation appliances
- Outdoor traffic and street lights
Functional Block Diagram
Related Development Tool
Texas Instruments OPT3002EVM 环境光传感器评估模块 (EVM)
用于评估 OPT3002 在各种条件下的性能的平台。
发布日期: 2016-07-25
| 更新日期: 2022-03-11