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| Integrated Digital Ambient Light Sensor with Interrupt Function |
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| Ordering Information |
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 iBuy direct from Intersil
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 iBuy direct - out of stock
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 Request samples
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 Check distributor inventory
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Available in RoHS/Pb-Free
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Part No. |
Design-In
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Package |
MSL |
Price
US $ |
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| ISL29023IROZ-EVALZ |
Active |
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Eval Board |
N/A |
Contact Us |
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| ISL29023IROZ-T7 |
Active |
Ind |
6 Ld ODFN T+R |
3OP |
1.26 |
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| The price listed is the manufacturer's suggested retail price for quantities of 1K units. However, prices in today's market are fluid and may change without notice. |
| MSL = Moisture Sensitivity Level - per IPC/JEDEC J-STD-020 |
| SMD = Standard Microcircuit Drawing |
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 Description |
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The ISL29023 is an integrated ambient and infrared light to digital converter with I2C (SMBus Compatible) Interface. Its advanced self-calibrated photodiode array emulates human eye response with excellent IR rejection. The on-chip ADC is capable of rejecting 50Hz and 60Hz flicker caused by artificial light sources. The lux range select feature allows users to program the lux range for optimized counts/lux.
For ambient light sensing, an internal 16-bit ADC has been designed based upon the charge-balancing technique. The ADC conversion time is nominally 90ms and is user adjustable from 11μs to 90ms, depending on oscillator frequency and ADC resolution. In normal operation, typical current consumption is 70μA. In order to further minimize power consumption, two power-down modes have been provided. If polling is chosen over continuous measurement of light, the auto-power-down function shuts down the whole chip after each ADC conversion for the measurement. The other power-down mode is controlled by software via the I2C interface. The power consumption can be reduced to less than 0.3μA when powered down.
The ISL29023 supports a software and hardware interrupt that remains asserted until the host clears it through I2C interface. Function of ADC conversion continues without stopping after interrupt is asserted.
Designed to operate on supplies from 2.25V to 3.63V with an I2C supply from 1.7V to 3.63V, the ISL29023 is specified for operation over the -40°C to +85°C ambient temperature range. |
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 Key Features |
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Ambient Light Sensing
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Simple Output Code Directly Proportional to lux
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Variable Conversion Resolution up to 16-bits
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Adjustable Sensitivity up to 65 Counts per lux
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Selectable Range (via I2C)
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Range 1 = 0.015 lux to 1,000 lux
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Range 2 = 0.06 lux to 4,000 lux
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Range 3 = 0.24 lux to 16,000 lux
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Range 4 = 0.96 lux to 64,000 lux
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Integrated 50/60Hz Noise Rejection
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Temperature Compensated
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Works Under Various Light Sources, Including Sunlight
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Excellent Spectral Response
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Light Sensor Close to Human Eye Response
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Excellent Light Sensor IR and UV Rejection
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Ultra Low Power
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85μA Max Operating Current
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Software Shutdown and Automatic Shutdown
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0.3μA Max Shutdown Current
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Additional Features
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I2C and SMBus Compatible
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1.7V to 3.63V Supply for I2C Interface
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2.25V to 3.63V Sensor Power Supply
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Small Form Factor
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6 Ld 2.0x2.1x0.7mm ODFN Package
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Pb-Free (RoHS Compliant)
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| Related Documentation |
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 Datasheet(s): |
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 Technical Homepage: |
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 Design Model(s): |
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 Parametric Data |
| | Peak Sensitivity (nm) | | 540 | | | VS (Min) (V) | | 2.25 | | | VS (Max) (V) | | 3.63 | | | Supply Current (μA) | | 85 | | | Resolution (Bits) | | 16 | | | Lux Range (Max) (Lux) | | 65535 | | | Counts per Lux (Max) (Counts) | | 65 | | | Dark ADC Code @ EV = 0Lux (Max) (Count) | | 5 | | | Gain Selection? | | Y | | | Output Interface | | I2C | | | Address Selection Pins? | | N | | | Enable Pin? | | N | | | Package Dimensions (mm) | | 2.0x2.1x0.70 | |
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 Application Block Diagrams |
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| Applications |
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- Display and Keypad Dimming Adjustment for:
- Mobile Devices: Smart Phone, PDA, GPS
- Computing Devices: Notebook PC, Webpad
- Consumer devices: LCD-TV, Digital Picture Frame, Digital Camera
- Industrial and Medical Light Sensing
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| | ISL29001 | | Light-to-Digital Sensor | | | ISL29002 | | Light-to-Digital I2C Sensor | | | ISL29003 | | Light-to-Digital Output Sensor with High Sensitivity, Gain Selection, Interrupt Function and I2C Interface | | | ISL29004 | | Light-to-Digital Output Sensor with Address Selection, High Sensitivity, Gain Selection, Interrupt Function and I2C Interface | | | ISL29010 | | Light-to-Digital Output Sensor with High Sensitivity, Gain Selection, and I2C Interface | | | ISL29012 | | Light-to-Digital Output Sensor with High Sensitivity, Gain Selection, Interrupt Function and I2C Bus™ | | | ISL29013 | | Light-to-Digital Output Sensor with High Sensitivity, Gain Selection, Interrupt Function and I2C Interface | | | ISL29020 | | A Low Power, High Sensitivity, Light-to Digital Sensor With I2C Interface | |
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