1

Light-to-Digital Output Sensor with Gain Selection,

ISL76683

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

provides four user programmable lux sensitivity ranges for

optimized counts/lux in a variety of lighting conditions. In

sensor and remote monitoring capabilities.

In normal operation, power consumption is less than 300µA.

interface reduces power consumption to less than 1µA.

The ISL76683 supports twin (upper & lower) user programmed

thresholds and provides a hardware interrupt that remains

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

package.

Features

- 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)

Applications

• Automotive Ambient Light Sensing

• Backlight Control

• Lighting Controls

VDD

REXT

GND

SDA

SCL

COMMAND

REGISTER

INTEGRATING

ADC

DATA

REGISTER

PHOTODIODE 1

PHOTODIODE 2

MUX

3

2

5

6

1

FOSC

IREF

COUNTER

EXT

4 INT

INTERRUPT

ISL76683

TIMING

INT

FIGURE 1. BLOCK DIAGRAM

January 31, 2011

FN7697.1

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.

1-888-INTERSIL or 1-888-468-3774

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