ADC12EU050 Datasheet, PDF (1/8 Pages) National Semiconductor (TI) – Ultra-Low Power, Octal, 12-bit, 40-50 MSPS Analog-to-Digital Converter

ADVANCE INFORMATION
January 25, 2008
ADC12EU050
Ultra-Low Power, Octal, 12-bit, 40-50 MSPS Analog-to-
Digital Converter
General Description
NOTE: This is Advance Information for a product cur-
rently in development. ALL specifications are design tar-
gets and are subject to change.
The ADC12EU050 is a 12-bit, ultra-low power, octal A/D con-
verter for use in high performance analog to digital applica-
tions. The ADC12EU050 uses an innovative continuous time
sigma delta architecture offering ultra low power consumption
and an alias free sample bandwidth up to 25MHz. The input
stage of each channel features a proprietary system to ensure
instantaneous recovery from overdrive. Instant overload re-
covery (IOR) with no memory effect guarantees the elimina-
tion of phase errors resulting from out of range input signals.
The ADC12EU050 reduces interconnection complexity by us-
ing programmable serialized outputs which offer the industry
standard LVDS and SLVS modes. Power consumption of only
44mW per channel(@ 50MSPS) gives a total chip power con-
sumption of 350mW. 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 -40 to
+85 °C and is supplied in a 10 x 10 mm², 68 pin package.
Features
■ ^{CT∑ΔADC architecture with 40-50MSPS throughput}
■ ^{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}
Key Specifications
■ ^Resolution
12 Bits
■ ^{Conversion Rate}
40 to 50 MSPS
■ ^SNR
■ ^THD
■ ^{Power Consumption}
70 dBFS (typ) @ (f_IN = 3.5MHz)
–70 dB (typ) @ (f_IN = 3.5MHz)
44 mW/ch (typ) @ 50MSPS
■
40 mW/ch (typ) @ 40MSPS
■ ^{Total Active Power}
350 mW (typ) @ 50MSPS
Consumption
(Equalizer off)
■ ^{Inter-Channel Isolation}
■ ^{Operating Temp. Range}
>110 dB @ (f_IN = 3.5MHz)
-40 to +85 °C
Applications
■ ^{Battery powered portable systems}
■ ^{Medical imaging, ultrasound}
■ ^{Industrial ultrasound, such as non-destructive testing}
■ ^{Communications}
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