LTR-303ALS-01 Light Sensor Board Supporting Fast I2C, 16-Bit Resolution, Human-Eye Response & 50/60 Hz Flicker Rejection
- Wide dynamic range: 0.01 lux to 64,000 lux with 16-bit resolution
- Fast-mode I2C interface (up to 400 kbit/s)
- Ultra-small 2.0 × 2.0 × 0.7 mm 6-pin ChipLED package
- Human-eye spectral response + 50/60 Hz flicker rejection
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LTR-303ALS-01 Light Sensor Board Description
The LTR-303ALS-01 is a compact, low-voltage digital ambient light sensor (ALS) that delivers accurate light-intensity measurements through a fast I2C interface. Designed for applications ranging from extremely low light (0.01 lux) to direct sunlight conditions (up to 64,000 lux), this sensor offers excellent linearity and human-eye-matched spectral response – making it ideal for smartphones, tablets, laptops, TVs, automotive displays, and industrial lighting control.
LTR-303ALS-01 Light Sensor Board Features
| Feature | Details |
|---|---|
| Wide Dynamic Range | 0.01 lux to 64,000 lux with 16-bit effective resolution |
| Flexible Gain Settings | Six gains: 1×, 2×, 4×, 8×, 48×, and 96× for optimal performance in any lighting condition |
| Digital Interface | Supports Fast Mode I²C up to 400 kbit/s |
| Human-Eye Spectral Response | Accurate visible-light detection with built-in IR/UV rejection |
| Flicker Immunity | Automatically rejects 50/60 Hz artificial light flicker |
| Ultra-Compact Package | Miniature 6-pin ChipLED, only 2.0 × 2.0 × 0.7 mm |
| Low Power Consumption | Active and standby modes suitable for battery-powered devices |
| Wide Supply Voltage | 2.4 V to 3.6 V (supports 1.7 V logic levels) |
| Temperature Compensation | Built-in circuit ensures stable readings from -30 °C to +70 °C |
| Eco-Friendly | RoHS compliant and halogen-free |
| Module Dimensions | 10.69 × 12.73 mm |
Perfect for designers looking for a reliable, cost-effective ambient light sensor with excellent sunlight performance and minimal board space requirements.
LTR-303ALS-01 Light Sensor Board Applications
The LTR-303ALS-01 is ideal for any application requiring accurate, human-eye-matched ambient light detection across an extremely wide range (0.01 lux to 64,000 lux). Common uses include:
- Back-lighting Control in portable devices
- Touch Panel Control in portable devices
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| Interfaces | I²C digital interface (Fast Mode @ 400 kbit/s) |
|---|---|
| Gain Settings | 6 selectable gains (1×, 2×, 4×, 8×, 48×, 96×) |
| Dynamic Range | Full dynamic range from 0.01 lux to 64,000 lux |
| Resolution | 16-bit effective resolution |
| Supply Voltage | 2.4 V to 3.6 V (supports 1.7 V logic levels) |
| Package | Ultra-small 6-pin ChipLED, 2.0 mm (L) × 2.0 mm (W) × 0.7 mm (H) |
| Operating Temperature | -30 °C to +70 °C |
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