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Wolfson PR - New additions to high-speed pipelined ADC family
16 September 2002
Wolfson introduces dual channel devices to high speed pipelined ADC family
Edinburgh, UK, 16 September 2002. Wolfson Microelectronics, Ltd., has extended its range of devices targeted at the communications and instrumentation markets with the introduction of the WM2124 and WM2125. Both devices are dual 10-bit, 40MSPS ADCs, which simultaneously convert each analogue input signal into a 10-bit, binary coded digital word, up to a maximum sampling rate of 40MSPS-per-channel.
Additionally the WM2125 features dual, onboard Programmable Gain Amplifiers
(PGAs) that allow a setting of 0dB to 18dB to adjust the gain of each
set of inputs in order to match the amplitude of the incoming signal.
A serial control interface is provided to control these PGAs and other
device modes of operation. Digital inputs and outputs are 3.3V TTL/CMOS
compatible on both devices.
"The old boundaries between communications, multimedia and computing
will continue to blur as new breeds of products integrate previously
disparate technologies," said David Milne, managing director for
Wolfson Microelectronics. "Each application has its own requirements
for conversion speed, resolution, noise performance, and analogue processing.
With the introduction of the WM2124 and WM2125, we have leveraged our
long-standing expertise in data conversion, to expand our product family
and offer our
customers successively more integrated, low power
solutions". Hecontinued, "With a core conversion speed of
40 MSPS these devices are ideal for applications such as digital copiers
and video cameras, set top boxes, IF and baseband digitisation, medical
imaging and other instruments for high speed data acquisition."
The innovative dual pipeline architecture, implemented in a CMOS process,
and the 3.3V supply results in a very low power dissipation of 275 mW.
In order to provide maximum flexibility, both top and bottom voltage
references can be set from user-supplied voltages. Alternatively, if
no external references are available, the on-chip internal references
can be used. Internally both ADCs share a common reference to improve
offset and gain matching. If external reference voltage levels are available,
the internal references can be powered down independently from the rest
of the chip, resulting in even greater power savings.
Availability
The WM2124 / WM2125 are available in 48-pin TQFP packages for commercial applications from 0 degree C to +70 degree C operating temperature, or industrial applications requiring -40 degree C to +85 degree C operation.
About Wolfson
Wolfson Microelectronics Ltd. develops mixed-signal semiconductors for
multimedia and communications applications. Privately held and based
in Edinburgh, UK, Wolfson is a leading supplier into both audio and
imaging markets and is the supplier of choice by market makers around
the world.
Source:
Kerry Marsh, Neesham PR
Wolfson web site
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