16-Bit, 80 MSPS A/D Converter
AD10678
FEATURES
FUNCTIONAL BLOCK DIAGRAM
80 MSPS sample rate
AIN
AD10678
80 dBFS signal-to-noise ratio
Transformer-coupled analog input
Single PECL clock source
Digital outputs
True binary format
3.3 V and 5 V CMOS compatible
AIN
14
ADC
D
D
0
OUT
14
14
14
ADC
ADC
ADC
DIGITAL
POST-
PROCES-
SING
OUTPUT
DATA
BITS
15
OUT
APPLICATIONS
Low signature radar
DRY
AGND
5VA
3.3VE
AGND
Medical imaging
Communications instrumentation
Instrumentation
ANALOG
POWER
CLOCK DISTRIBUTION
CIRCUIT
DGND 3.3V DGND
Antenna array processing
ENCODE ENCODE
DIGITAL POWER
Figure 1.
GENERAL DESCRIPTION
PRODUCT HIGHLIGHTS
1. Guaranteed sample rate of 80 MSPS.
2. Input signal conditioning with optimized noise
performance.
The AD10678 is a 16-bit, high performance, analog-to-digital
converter for applications that demand increased SNR levels.
Exceptional noise performance and a typical signal-to-noise
ratio of 80 dBFS are obtained by digitally postprocessing the
outputs of four ADCs. Only a single analog input and PECL
sampling clock, as well as 3.3 V and 5 V power supplies, are
required.
3. Fully tested and guaranteed performance.
The AD10678 is assembled using a 0.062" thick laminate board
with three sets of connector interface pads to accommodate
analog and digital isolation. Analog Devices recommends using
this connector from Samtec: FSI-110-03-G-D-AD-K-TR. The
overall card fits a 2.2" × 2.8" PCB specified from 0°C to 70°C.
Rev. A
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