Product category:
Analogue and Mixed Signal ICs
News Release from: Linear Technology Corp | Subject: LTC2285
Edited by the Electronicstalk Editorial
Team on 07 December 2006
High efficiency basestation transceivers
enhanced
Linear Technology has announced the LTC2285, a 14bit 125Msample/s dual high-speed analogue to digital convertor (ADC) with low power dissipation of just 395mW per channel.
Linear Technology has announced the LTC2285, a 14bit 125Msample/s dual high-speed analogue to digital convertor (ADC) with low power dissipation of just 395mW per channel This high speed device is optimised for use in power efficient, multi-carrier wireless basestation transceiver applications including WiBro and WiMAX standards with performance of 71.3dB SNR and 78dB SFDR at 140MHz
This article was originally published on Electronicstalk on 28 Jul 2004 at 8.00am (UK)
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The high sampling rate allows designers to capture wider channel bandwidths, doubling the capacity of existing systems that are typically sampling at 65Msps.
In addition to the 14bit LTC2285, Linear Technology offers the pin compatible 12bit LTC2283 and 10bit LTC2281 125Msample/s dual ADCs.
These three dual ADCs complete a 3V family of 10, 12 and 14bit parts ranging from 10 to 125Msample/s.
The pin compatibility offers designers more flexibility during product development, providing a fast and cost-effective upgrade path for existing designs.
The ADCs provide very low crosstalk between channels of -110dB.
The LTC2285 low power family is packaged in a small 9 x 9mm QFN package.
The parts include integrated bypass capacitance and 50ohm series output matching for a small total solution size.
They provide the flexibility to choose between two input spans of 1 or 2V peak-peak.
The 125Msample/s dual ADCs also offer a data-ready clock-out pin for latching the output data buses.
The ADCs are optimised for undersampling signals up to 140MHz, and have a wide analog input bandwidth of 640MHz.
For downconversion signal chains, Linear Technology recommends the LT5516 direct conversion quadrature demodulator and LT6402 300MHz low distortion/low noise ADC driver.
All three devices are supported with demo boards for quick evaluation and can be purchased online.
Samples of the LTC2285, LTC2283 and LTC2281 are available today along with production quantities for both the commercial and industrial temperature grades.
These devices are competitively priced at US $73.50, $41.25 and $18.00 each, respectively, in 1000-piece quantities. Request a free brochure from Linear Technology Corp ...
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