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Light-to-Digital Output Sensor with Gain Selection,
Interrupt Function and I2C Interface
The ISL76683 is an integrated light sensor with an internal
integrating ADC intended for automotive applications. The ADC
provides 16-bit resolution and is capable of rejecting 50Hz and
60Hz flicker caused by artificial light sources. The I2C interface
provides four user programmable lux sensitivity ranges for
optimized counts/lux in a variety of lighting conditions. In
addition, the I2C interface provides multi-function control of the
sensor and remote monitoring capabilities.
In normal operation, power consumption is less than 300µA.
Furthermore, a software power-down mode controlled via the I2C
interface reduces power consumption to less than 1µA.
The ISL76683 supports twin (upper & lower) user programmed
thresholds and provides a hardware interrupt that remains
asserted low until the host clears it via the I2C control interface.
Designed to operate on supplies from 2.5V to 3.3V, the ISL76683 is
qualified to AECQ100 and specified for operation over the -40°C to
+105°C (grade 2) ambient temperature range. To achieve this, the
ISL76683 is packaged in a special extended temperature clear
• Range select via I2C
- Range 1 = 0 lux to 1000 lux
- Range 2 = 0 lux to 4000 lux
- Range 3 = 0 lux to 16,000 lux
- Range 4 = 0 lux to 64,000 lux
• Human Eye Response (540nm Peak Sensitivity)
• Temperature Compensated
• 16-bit Resolution
• Adjustable Sensitivity: up to 65 Counts per Lux
• User-programmable Upper and Lower Threshold Interrupt
• Simple Output Code, Directly Proportional to Lux
• IR + UV Rejection
• 50Hz/60Hz Rejection
• 2.5V to 3.3V Supply
• 6 Ld ODFN (2.1mmx2mm)
• Pb-free (RoHS compliant)
• Automotive Ambient Light Sensing
• Backlight Control
• Lighting Controls
FIGURE 1. BLOCK DIAGRAM
January 31, 2011
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774 |Copyright Intersil Americas Inc. 2011. All Rights Reserved
Intersil (and design) is a trademark owned by Intersil Corporation or one of its subsidiaries.
All other trademarks mentioned are the property of their respective owners.
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Light-to-Digital Output Sensor
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