MAX44007 Maxim, MAX44007 Datasheet
MAX44007
Related parts for MAX44007
MAX44007 Summary of contents
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... Rev 1; 6/11 Low-Power Digital Ambient Light Sensor General Description The MAX44007 ambient light sensor features an I digital output that is ideal for a number of portable appli- cations such as smartphones, notebooks, and industrial sensors. At less than 1µA operating current the lowest power ambient light sensor in the industry and features an ultra-wide 22-bit dynamic range from 0 ...
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... Continuous Input Current into Any Terminal ................... Q20mA Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability ...
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Low-Power Digital Ambient Light Sensor ELECTRICAL CHARACTERISTICS (continued 1.8V -40NC to +85NC, unless otherwise noted.) (Note 1) CC MIN MAX PARAMETER SYMBOL TIMING Serial-Clock Frequency Bus Free Time Between a STOP ...
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... Low-Power Digital Ambient Light Sensor with Enhanced Sensitivity (V = 1.8V, default power-up setting; unless otherwise noted.) CC SPECTRUM RESPONSE 120 100 MAX44007 RESPONSE 300 400 500 600 WAVELENGTH (nm) SPECTRUM OF LIGHT SOURCES FOR MEASUREMENT 160 140 INCANDESCENT 120 100 300 400 ...
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... Interrupt Output. Use an external pullup resistor. INT 5 SCL SDA I 2 — EP Exposed Pad. Connect EP to ground. with Enhanced Sensitivity Typical Operating Characteristics (continued) MAX44007 READING vs. LUX LEVEL 350 300 INCANDESCENT LAMP 200 150 FLUORESCENT LAMP 100 100 200 300 ...
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... IR wavelengths while attenuating visible light by 20–50 times or more, the IC dual-photodiode archi- tecture can be utilized to compensate for the increased Figure 1. Spectral Sensitivity of the MAX44007 and Human Eye 6 IR component of incoming light. By allowing the user to adjust the internal gain settings to compensate for the dark glass’ ...
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Low-Power Digital Ambient Light Sensor Table 1. Register Map REGISTER 7 6 STATUS Interrupt Status — — Interrupt Enable — — CONFIGURATION Configuration CONT MANUAL LUX READING Lux High Byte E3 E2 Lux Low Byte — — THRESHOLD SET Upper ...
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Low-Power Digital Ambient Light Sensor with Enhanced Sensitivity BIT 7 BIT 6 BIT 5 — — — If the INTE bit is set to 1, then the INTS status bit is asserted if the light intensity exceeds either upper or ...
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Low-Power Digital Ambient Light Sensor Table 4. Continuous Mode Register BIT 7 Default mode. The IC measures lux intensity only once every 800ms regardless of integration time. This mode 0 allows the part to operate at its lowest possible supply ...
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Low-Power Digital Ambient Light Sensor with Enhanced Sensitivity The TIM[2:0] bits can be used to program the signal integration time. In automatic mode (MANUAL = 0), integration time is automatically selected by the on-chip algorithm to be either 100ms/200ms/400ms/800ms. In ...
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Low-Power Digital Ambient Light Sensor BIT 7 BIT 6 BIT 5 — — — Bits in Lux Low-Byte register 0x04 give the 4 least significant bits of the mantissa byte representing the lux reading of ambient light. Combined with the ...
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... The IC has a user-friendly digital output format. It con- sists of a 4-bit exponent followed by an 8-bit mantissa. In its highest sensitivity mode, 1 count represents 0.025 lux. The mantissa has a maximum value of 255, and the exponent has a maximum value of 14. This gives a maxi- mum range: 255 x 2 maximum lux reading is 104,448 lux ...
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... EEEE 1MMM. Notice that bit M7 (most significant bit) must always The other bits do not matter. EEEE is limited to a maximum value of 1110. The maximum usable setting is a code of 1110 1111. In manual mode (MANUAL = 1), Table 9 gives the range of exponent ( E0) that can be used for each TIM[2:0] and CDR bit setting ...
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Low-Power Digital Ambient Light Sensor with Enhanced Sensitivity Table 9. Recommended Manual Mode Settings for Configuration Register (0x02) and Threshold Registers (0x05, 0x06) APPLICATION CONDITIONS LUX LSB LUX LUX LSB (MIN) (MAX) (MAX) 0.025 1632 6.4 0.05 3264 12.8 0.1 ...
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... Low-Power Digital Ambient Light Sensor READ MAX44007 AMBIENT LUX, SET APPROPRIATE BACKLIGHT STRENGTH WRITE TO UPPER LUX THRESHOLD, LOWER LUX THRESHOLD AND LUX THRESHOLD TIMER REGISTERS WORK ON TASKS/SLEEP UNTIL WOKEN BY HARDWARE INTERRUPT READ INTS BIT TO CONFIRM Y MAX44007 CAUSED Figure 2. Typical Operating Sequence ...
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Low-Power Digital Ambient Light Sensor with Enhanced Sensitivity Serial Interface The IC features C/SMBus™-compatible, 2-wire serial interface consisting of a serial-data line (SDA) and a serial-clock line (SCL). SDA and SCL facilitate com- munication ...
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Low-Power Digital Ambient Light Sensor S SR SCL SDA Figure 4. START, STOP, and REPEATED START Conditions The slave address is controlled by the A0 pin. Connect A0 to either ground set the address. Table 10 CC ...
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... SLAVE ADDRESS 0 A R/W Figure 7. Reading One Indexed Byte of Data from the GND AO Figure 8. Sensor Position 18 ACKNOWLEDGE FROM MAX44007 0 A REGISTER ADDRESS ACKNOWLEDGE FROM MAX44007 REGISTER ADDRESS A Sr SLAVE ADDRESS REPEATED START 2mm 1 MAX44007 TOP VIEW 0.75mm 0.24mm CENTER OF MAX44007 2 0.13mm ...
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... Low-Power Digital Ambient Light Sensor V TO 3.6V 1.7V TO 3.6V CC 1µF 10kI 10kI V SDA CC SCL GND A0* INT MAX44007 *DEVICE ADDRESS IS 1011 010x. CONNECT FOR SLAVE ADDRESS 1011 011x. CC SEE THE PIN DESCRIPTION with Enhanced Sensitivity Typical Application Circuit 10kI SDA SDA ...
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... Enhanced Sensitivity For the latest package outline information and land patterns (footprints www.maxim-ic.com/packages. Note that a “+”, “#”, or “-” in the package code indicates RoHS status only. Package drawings may show a different suffix character, but the drawing pertains to the package regardless of RoHS status ...
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... Characteristics; Table7. Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 2010 Maxim Integrated Products © ...