ADC12EU050 Datasheet, PDF (1/44 Pages) National Semiconductor (TI) – Ultra-Low Power, Octal, 12-bit, 40-50 MSPS Analog-to-Digital Converter

ADC12EU050
www.ti.com
SNAS444I – JANUARY 2008 – REVISED APRIL 2013
ADC12EU050 Ultra-Low Power, Octal, 12-bit, 45 MSPS Sigma-Delta Analog-to-Digital
Converter
Check for Samples: ADC12EU050
FEATURES
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•2 Xignal^™ CT∑Δ ADC Technology
• 45MSPS Sampling Rate
• Anti-Alias Filter Free Nyquist Sample Range
• Unique Instant Overload Recovery (IOR)
• Wide 2.10 V_PP Input Range
• 1.2V Supply Voltage
• Integrated Precision LC PLL
• Serial Control via SPI Compatible Interface
APPLICATIONS
• Medical Imaging, Ultrasound
• Industrial Ultrasound, such as Non-Destructive
Testing
• Communications
• Battery Powered Portable Systems
KEY SPECIFICATIONS
• Resolution 12 Bits
• Conversion Rate 45 MSPS
• SNR : 69.3 dBFS (typ) @ 45 MSPS
f_IN = 4.4MHz
• THD –76.6 dB (typ) @ 45 MSPS
f_IN = 4.4MHz
• Per Channel Power 46 mW/ch (typ) @ 45 MSPS
• Total Active Power 364 mW (typ) @ 45 MSPS
• Inter-Channel Isolation >110 dB @
f_IN = 4.4 MHz
• Operating Temp. Range 0 to +70 °C
DESCRIPTION
The ADC12EU050 is a 12-bit, ultra-low power, octal
A/D converter for use in high performance analog to
digital applications. The ADC12EU050 uses an
innovative continuous time sigma delta architecture
offering ultra low power consumption and an alias
free sample bandwidth up to 22.5MHz. The input
stage of each channel features a proprietary system
to ensure instantaneous recovery from overdrive.
Instant overload recovery (IOR) with no memory
effect ensures the elimination of phase errors
resulting from out of range input signals. The
ADC12EU050 reduces interconnection complexity by
using programmable serialized outputs which offer
the industry standard LVDS and SLVS modes. Power
consumption of only 46mW per channel @ 45MSPS
gives a total chip power consumption of 364mW. The
ADC12EU050 can operate entirely from a 1.2V
supply, although a separate output driver supply of up
to 1.8V can be used. The device operates from 0 to
+70 °C and is supplied in a 10 x 10 mm², 68-pin
VQFN package.
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PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
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