Product category:
Analogue and Mixed Signal ICs
News Release from: Linear Technology Corp | Subject: LTC2299 etc
Edited by the Electronicstalk Editorial
Team on 30 May 2005
Dual ADCs cut the crosstalk
A new family of low power, high speed dual ADCs provide -110dB crosstalk for excellent channel-to-channel isolation, while achieving extremely low power consumption.
Linear Technology has introduced a family of low power, high speed dual ADCs that provide -110dB crosstalk for excellent channel-to-channel isolation, while achieving extremely low power consumption At just 445mW, about 222mW per channel, the 14bit, 80Msample/s LTC2299 consumes less power than even slower competitors
This article was originally published on Electronicstalk on 28 Jul 2004 at 8.00am (UK)
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The device is ideal for basestation applications, achieving 73dB signal-to-noise ratio (SNR) and 85dB spurious free dynamic range (SFDR) at 70MHz.
For higher intermediate frequencies (IFs), it excels with 72.6dB SNR and 80dB SFDR up to 140MHz.
The LTC2299 is one of 14 new dual ADCs introduced today by Linear Technology, as part of its expanding family of low power, high speed ADCs, which range from 10 to 80Msample/s at 10, 12 and 14bit resolution.
In addition to basestation applications, these low power dual ADCs are well suited for other communication systems and high-end medical imaging equipment.
The LTC2299's small 9 x 9mm QFN package makes this dual ADC ideal for low power single carrier basestations where the matching performance of the in-phase (I) and quadrature (Q) channels is critical.
Crosstalk between channels stays below -110dB from low input frequencies all the way up to 100MHz.
The system footprint of the LTC2299 is small since few external bypass capacitors are needed.
Optimised for undersampling with wide bandwidth, it also suits multicarrier basestation designs that require multiple receive channels in a small area.
Pin-compatible versions at sample rates of 65, 40, 25 and 10Msample/s feature even lower power - as low as 60mW per channel.
Pin-compatible 12t and 10bit versions at each speed are also in full production.
In addition to these 14 new ADCs, Linear Technology is already shipping 24 previously introduced single channel ADCs.
Linear Technology's new ADC family features industry-leading AC performance at every sample rate, extremely low power consumption, and pin-compatibility, allowing easy migration from 10 to 12 or 14bit, or to different sample rates.
All 14 dual ADCs just announced are now in production and are packaged in 9 x 9mm, 64-pin QFN packages. Request a free brochure from Linear Technology Corp ...
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