AD9049(Rev0) View Datasheet(PDF) - Analog Devices
Part Name
Description
Manufacturer
AD9049 Datasheet PDF : 12 Pages
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a
9-Bit, 30 MSPS ADC
AD9049
FEATURES
Low Power: 300 mW
On-Chip T/H, Reference
Single +5 V Power Supply Operation
Selectable 5 V or 3 V Logic I/O
Wide Dynamic Performance
FUNCTIONAL BLOCK DIAGRAM
+5V GND
+5V
AD9049
REFERENCE CKTS
APPLICATIONS
AINB
T/H
ADC
OBSOLETE Digital Communications
Professional Video
Medical Imaging
Instrumentation
AIN
ENCODE
TIMING
SUM
AMP
DAC
ADC
DECODE 9
LOGIC
PRODUCT DESCRIPTION
The AD9049 is a complete 9-bit monolithic sampling analog-
to-digital converter (ADC) with an onboard track-and-hold and
reference. The unit is designed for low cost, high performance
applications and requires only +5 V and an encode clock to
achieve 30 MSPS sample rates with 9-bit resolution.
The encode clock is TTL compatible and the digital outputs
+5V
AIN
(+3.3V ± 0.512V)
3 4 2, 8, 11,
20, 22
10
0.1µF
+5V
0.1µF
5
AD9049
9 BITS
6
(2)
74AC574
are CMOS; both can operate with 5 V/3 V logic, selected by the
user. The two-step architecture used in the AD9049 is opti-
mized to provide the best dynamic performance available while
0.1µF
9
13
1, 7, 12,
21, 23
maintaining low power consumption.
A 2.5 V reference is included onboard, or the user can provide
ENCODE
an external reference voltage for gain control or matching of
multiple devices. Fabricated on an advanced BiCMOS pro-
cess, the AD9049 is packaged in space saving surface mount
Figure 1. Typical Connections
packages (SOIC, SSOP) and is specified over the industrial
(–40°C to +85°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.
© Analog Devices, Inc., 1996
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 617/329-4700
Fax: 617/326-8703
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