AD9032_15 Datasheet, PDF (1/8 Pages) Analog Devices – 12-Bit 25 MSPS A/D Converter

a
12-Bit 25 MSPS
A/D Converter
AD9032
FEATURES
FUNCTIONAL BLOCK DIAGRAM
25.6 MSPS Conversion Speeds
On-Board T/H, References, Timing
Low Power: 3.8 W
Single 40-Pin Package
74 dB Spurious-Free Dynamic Range
ANALOG
INPUT
TRACK-
AND-
HOLD
FLASH
5
ADC/DAC
ERROR ₁₂
CORR.
LOGIC
DIGITAL
OUTPUT
to 12 MHz A_IN
8
OBSOLETE Bipolar Input: ؎1.024 V
APPLICATIONS
Radar
Signal Intelligence
Digital Spectrum Analyzers
Medical Imaging
Electro-Optics
ENCODE
TIMING
CIRCUITS
SUM
AMP
RESIDUE
ENCODER
AD9032
DATA
READY
GENERAL DESCRIPTION
The AD9032 is the world’s fastest 12-bit analog-to-digital con-
verter (ADC) that includes on-board T/H, voltage references,
and timing circuits. The AD9032 uses a subranging converter
architecture to achieve sample rates from dc to 25.6 MSPS. Pack-
aged in a single 40-pin hybrid, the AD9032 is pin-compatible with
the AD9034, which operates at word rates up to 20 MSPS.
EVALUATION BOARD
An evaluation board which is available for the AD9032 (part
number AD9034/PCB) provides an easy and flexible method
for evaluating the ADC’s performance without (or prior to)
developing a user-specified printed circuit board. The evalua-
tion board was originally designed and used for evaluating the
AD9034 A/D converter, but is equally useful for the pin-
This ECL-compatible ADC requires only +5 V and –5.2 V sup- ^{compatible AD9032.}
plies, an analog input, and a stable ECL clock to obtain the best The board includes a reconstruction DAC, analog input ampli-
dynamic performance available in a 12-bit ADC. This kind of
fier, and digital output interface. Physically, it is 7.25 inches Ï«
performance is achieved with advanced bipolar circuits, custom 6 inches in size and uses the layout and applications information
designed and manufactured by Analog Devices. The latest in
contained in the AD9034 data sheet.
monolithic track-and-hold technology ensures accurate sam-
pling of high frequency analog inputs.
Generous space is provided near the analog input and digital
outputs of the evaluation board to support additional signal pro-
Dynamic performance has been optimized to achieve SNR of
cessing components the user may wish to add. These two proto-
64 dB and a spurious-free dynamic range (SFDR) of 74 dB for typing areas include through holes with 100-mil centers to
analog bandwidths up to 12 MHz. All units are tested for dy-
support a variety of component additions.
namic performance at a sample rate of 25.6 MSPS.
For additional operating details, a schematic of the evaluation
The AD9032 is available in either a 40-pin ceramic DIP or
board, and complete layout information, consult the data sheet
leaded flatpack. The two versions operate over an industrial
on the AD9034 A/D converter.
(–25°C to +85°C) or military (–55°C to +125°C) temperature
range.
REV. 0
Information furnished by Analog Devices is believed to be accurate and
reliable. However, no responsibility is assumed by Analog Devices for its
use, nor for any infringements of patents or other rights of third parties
which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Analog Devices.
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