16-Bit, 65 MSPS A/D Converter

AD10677

Rev. D

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FEATURES

65 MSPS sample rate

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

APPLICATIONS

Low signature radar

Medical imaging

Communications instrumentation

Instrumentation

Antenna array processing

GENERAL DESCRIPTION

The AD10677 is a 16-bit, high performance, analog-to-digital

converter (ADC) 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. A single analog input and PECL

sampling clock and 3.3 V and 5 V power supplies are required.

The AD10677 is assembled using a 0.062-inch laminate board

with three sets of connector interface pads to accommodate

analog and digital isolation. Analog Devices recommends

using the FSI-110-03-G-D-AD-K-TR connector from Samtec.

The overall card fits a 2.2 inch × 2.8 inch PCB specified from

0°C to 70°C.

FUNCTIONAL BLOCK DIAGRAM

AD10677

ANALOG

POWER

CLOCK

DISTRIBUTION CIRCUIT

DIGITAL POWER

ENCODE ENCODE

AGND

ADC

ADC

ADC

ADC

AGND

DGND

DGND

+3.3VE

+3.3V

+5VA

AIN

AIN

14

14

14

14

DIGITAL

POST-

PROCES-

SING

OUTPUT

DATA

BITS

Figure 1.

PRODUCT HIGHLIGHTS

1.

Guaranteed sample rate of 65 MSPS.

2.

Input signal conditioning with optimized noise

performance.

3.

Fully tested and guaranteed performance.