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Industry’s Easiest-to-Use Light-to-Digital Sensor ICs Extend Battery Life and Deliver Enhanced Functionality
Intersil ISL29010 and ISL29013 Light Sensors Feature Gain Selection, Near-Human Eye Spectral Response for IR Radiation Rejection, Low Supply Current and I2C Interface.
MILPITAS, CA, April 28, 2008 – Intersil Corporation (NASDAQ Global Select:
ISIL), a world leader in the design and manufacture of high-performance analog
semiconductors, today introduced the industry’s easiest-to-use light-to-digital
sensors, designed to increase battery life and deliver enhanced functionality
and performance in mobile, computer and consumer electronic products.
The new
ISL29010 and
ISL29013
are highly accurate sensors that measure and digitize the value of ambient light
and then allow access to that information through a standard I2C
interface. This provides a simple way to improve efficiency and functionality in
end products by enabling applications to automatically adjust to varying light
conditions. Performance advantages include extended battery life from keypad and
display dimming in mobile devices as well as increased performance in displays
for LCD panels, digital picture frames and digital cameras.
The spectral response of these devices attenuates unwanted IR radiation to
provide accurate light measurement even in extreme low-light conditions. This is
accomplished by integrating a full light-to-digital solution that includes
specially tuned photodiodes to remove all unwanted IR noise, a signed 15-bit
integrating ADC that allows for low-light sensitivity and automatic noise
cancellation.
The
ISL29010 and
ISL29013
feature gain selection, giving designers the ability to select the dynamic range
and low-light sensitivity that best matches the needs of their application. This
software-enabled functionality to choose between low-light sensitivity and wider
dynamic range ensures maximum performance as well as unmatched flexibility.
The devices operate on 2.5V to 3.3V and require supply current of just 250
microamps, lower than any available light-to-digital sensor ICs. In addition, a
power-down mode can be controlled by software via the I2C interface,
reducing power consumption to less than 1 microamp.
Both versions incorporate a signed 15-bit ADC to convert small current signals
in the presence of AC periodic noise. The ADC provides users with flexible
integration or conversion time through either internal or external modes and can
reject 50Hz and 60Hz flicker caused by external sources. Users can program the
lux range for optimized counts/lux.
As an added feature, the
ISL29013
includes an interrupt pin so users can set threshold values to detect specific
low or high light thresholds. The
ISL29010
includes an address selection pin so two light sensors can be used on the same I2C
bus.
Pricing and Availability
The
ISL29010 and
ISL29013
are available now in 6-lead ODFN packages (2mm x 2.1mm) and are priced at $1.20
each in 1,000-piece quantities.
For more
ISL29010 information:
http://www.intersil.com/cda/deviceinfo/0,1477,ISL29010.html
For more
ISL29013 information:
http://www.intersil.com/cda/deviceinfo/0,1477,ISL29013.html
Note to editors: To view a high-resolution downloadable photo of the
ISL29010,
visit Intersil’s photo room at:
http://www.intersil.com/pressroom/photoarchives.asp.
About Intersil’s Ambient Light Sensors
Intersil’s portfolio of light-to-analog and light-to-digital sensors provides
the ideal method for monitoring ambient light for brightness control in
computing and handheld devices. Intersil’s integrated IC light sensors have
superior sensitivity and power consumption when compared to traditional
stand-alone photodiodes, photoresistors and phototransistors. These devices can
be used for power-saving control or in any application that requires backlight
control, including mobile phones, PDAs, notebook computers, monitors, flat panel
TV displays, keyboard backlighting, automotive cluster gauges, automotive panel
displays, web pads and both video and still cameras. All of Intersil’s light
sensors are compensated for drift over time and temperature and in addition to
brightness control can be used for motion-sensing, intrusion-detection and
various other industrial and medical sensing applications such as oximeters and
blood glucose systems. To learn more, visit Intersil’s Display ICs page at
http://www.intersil.com/display/.
About Intersil
Intersil Corporation is a leader in the design and manufacture of high-performance analog semiconductors. The Company's products address some of the industry's fastest growing markets, such as, flat panel displays, cell phones, other handheld systems, and notebooks. Intersil’s product families address power management functions and analog signal processing functions. Intersil products include ICs for battery management, hot-swap and hot-plug controllers, linear regulators, power
sequencers, supervisory ICs, bridge drivers, PWM controllers, switching DC/DC regulators and power MOSFET drivers; optical storage laser diode drivers; DSL line drivers; video
and high-performance operational
amplifiers; data converters; interface ICs; analog switches and multiplexers; crosspoint switches; voice-over-IP devices; and ICs for military, space and radiation-hardened applications. For more information about Intersil or to find out how to become a member of our winning team, visit the Company's web site and career page at www.intersil.com.
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