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A World of Analog / Mixed-Signal Solutions
Print this page   |    Download the PDF File   |    Close Window FLASH NEWS #7-2005 - (2005-10-19)

CHIPIDEA extends its 90nm CMOS portfolio with a Low Power and Very Compact 1GHz ADC for Blu-ray and UWB systems
CHIPIDEA extends its 90nm portfolio with a very Low Power 6-bit, 1GHz ADC. The CI3412hm is very compact, dissipates only 55mW at a conversion rate of 1GHz, and is suitable for applications requiring very-high speed converters, such as ultra wideband (UWB) communication systems and Blu-ray DVD AFEs. The built-in test features can be used to reduce unit costs by simplifying production tests.
Square Brief Description
The CI3412hm is a fully differential very high- speed low power ADC core cell designed in a 1.2V 90nm technology.
Digital error correction is employed to reduce DNL errors and eliminate missing codes.
The references voltages are internally generated from the power supply.
A power down capability is included for extremely low power dissipation.


Main Features
• 1.2V 90nm CMOS, 1P6M
• 6-bit Resolution
• 1GHz Sampling rate
• 1Vpp Input Differential Voltage
• 1.2V ±10% Power Supply
• Internal reference generation
• Flexible power-down modes
• Built-in test features
• Power Dissipation: 55 mW (40mW @ 600MSps)
• Core Cell Area: 0.13 mm2


Square Block Diagram
Graphic 1
Square Silicon Achievements
The CI3412hm exhibits excellent Silicon results. ENOB values of 5.63 and 5.5 bit are obtained when sampling at 600MSps a full-scale sine-wave of respectively, 80MHz and 300 MHz.

Tested at a 1GHz sampling rate, when sampling a 500 MHz sine-wave the IP exhibits a 5.3 bit ENOB. Output data at 1GHz sampling rate, decimated by a factor of 5:

Graphic #2

Linearity is outstanding with INL and DNL below +/-0.25 LSB.

Graphic #3
Square Application
This ADC is suitable for applications requiring low resolution and very high-speed conversion rates, such as mass-storage read channels, ultra wide-band (UWB) communication systems and Blu ray DVD AFE. For UWB, an I&Q configuration can be provided.

Graphic #4

For SoC integration, Chipidea offers a wide range of Analog-Digital Interface Systems for Audio, Video, Multimedia, Data Communications and Connectivity, including Power and Clock Management functions.

For further information: www.chipidea.com
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