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| A Low Power, High Sensitivity, Light-to Digital Sensor With I2C Interface |
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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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Temp. |
Package |
MSL |
Price
US $ |
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| ISL29020IROZ-EVALZ |
Active |
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Eval Board |
N/A |
Contact Us |
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| ISL29020IROZ-T7 |
Active |
Ind |
6 Ld ODFN T+R |
3OP |
1.20 |
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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 ISL29020 is a low power, high sensitivity, integrated light sensor with I2C (SMBus Compatible) interface. Its state-of-the-art photodiode array provides close-to human eye response and good IR rejection. This ADC is capable of rejecting 50Hz and 60Hz flicker caused by artificial light sources. The lux range select feature allows the user to program the lux range for optimized counts/lux.
In normal operation, typical power consumption 55μA. 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 1μA when powered down.
Designed to operate on supplies from 2.25V to 3.3V with I2C supply from 1.7V to 3.6V, the ISL29020 is specified for operation over the -40°C to +85°C ambient temperature range. |
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 Key Features |
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Low Power
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65μA Max Operating Current
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0.5μA Max Shutdown Current
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Software Shutdown and Automatic Shutdown
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Ideal Spectral Response
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Close to Human Eye Response
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Excellent IR and UV Rejection
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Easy to Use
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Simple Output Code Directly Proportional to lux
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I2C (SMBus Compatible) Output
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No Complex Algorithms Needed
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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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Works Under Various Light Sources, Including Sunlight
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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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Temperature Compensated
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Integrated 50/60Hz Noise Rejection
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Small Form Factor
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2.0mmx2.1mmx0.7mm 6 Ld ODFN Package
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Additional Features
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I2C and SMBus Compatible
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1.7V to 3.6V Supply for I2C Interface
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2.25V to 3.3V Supply
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Address Selection Pin
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Pb-Free (RoHS compliant)
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| Related Documentation |
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 Application Note(s): |
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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) | | 3.3 | | | Supply Current (μA) | | 55 | | | 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? | | Y | | | Enable Pin? | | Software Enabled | | | 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 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 | | | ISL29023 | | Integrated Digital Ambient Light Sensor with Interrupt Function | |
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