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Industry's Smallest Liquid Lens Driver for Tiny Autofocus Camera
Modules
SUNNYVALE, CA—December 4, 2008—Maxim Integrated Products (NASDAQ:
MXIM) introduce s the MAX14515, a DC-to-AC liquid lens driver for autofocus
(AF) camera modules. The MAX14515 features a high-voltage differential output
controlled through an I²C interface. It employs a charge-pump topology to
reduce the number of external components typically used for autofocus drivers in
camera modules. The I²C interface and the charge-pump topology are combined
in a tiny 2mm x 1mm WLP, making the MAX14515 the industry's smallest liquid
lens driver. The device is ideal for tiny cell-phone camera modules that use the
newest autofocus technologies.
Traditional Solutions Too Large for Shrinking Camera Modules
The traditional liquid lens drivers available on th e market require component s
typically found in boost topologies, which minimally include a large inductor, diode, and high-voltage capacitor. Meanwhile, other
charge-pump-based drivers are large and require many capacitors. When the numerous other supporting discrete components
are added to the design, the size of these discrete solutions requires a large footprint, one that can no longer be accommodated
inside the shrinking autofocus came ra modules.
High Integration and High Performance for Tiny Camera Modules
The MAX14515 needs at most two small external capacitors: one low-voltage capacitor and a tiny bypass capacitor. The device
integrates an 8-bit monotonic DAC with a single-differential high-voltage output controlled by a 2-wire I²C interface to set the
amplitude. The high-voltage output delivers up to 42VRMS into a 200pF liquid lens load at 1.1kHz. With its 2mm² footprint, which
is at least 60% smaller than the market's available drivers, the MAX14515 liquid lens driver easily fits inside the camera module.
The unique combination of smallest footprint, I²C interface, and low shutdown current make the MAX14515 ideal for enabling
today's newest high-performance, autofocus camera modules.
The MAX14515 is fully specified over the -40°C to +85°C extended temperature range. The device is priced at $1.50 (1000-up,
FOB USA). For more information please visit: www.maxim-ic.com/MAX14515-Driver.
Maxim Integrated Products is a publicly traded company that designs, manufactures, and sells over $2 billion of high-
performance semiconductor products annually. It was founded over 25 years ago with the mission to deliver innovative analog
and mixed-signal engineering solutions that add value to its customers' products. To date, Maxim has developed over 5900
products serving the industrial, communications, consumer, and computing markets. For more information, go to www.maxim-
ic.com.
Tiny, High-Voltage Liquid Lens Driver for
A
utofocus Camera Modules
[High-Resolution Images]
Note to Editor:
zThe MAX14515 is a DC-to-AC IC for driving a liquid lens.
zThis liquid lens driver utilizes a charge-pump architecture to reduce the
number of external components needed.
zThe MAX14515 is featured in a tiny WLP package.
zWith its tiny size, the ideal application for this liquid lens driver is
autofocus cell-phone camera modules.
Editors Contact: PR-USA@maxim-ic.com
Customer Service: 1-800-998-8800
Additional Information: MAX14515
- QuickView Data Sheet
High-Resolution Images: - Download RGB: (TIF.ZIP) (JPG)
- Download CMYK: (TIF.ZIP) (JPG.ZIP) (PDF)
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