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Analog Devices Semiconductor Electronic Components Datasheet

AD9049 Datasheet

9-Bit/ 30 MSPS ADC

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AD9049 pdf
a
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
APPLICATIONS
Digital Communications
Professional Video
Medical Imaging
Instrumentation
9-Bit, 30 MSPS ADC
AD9049
FUNCTIONAL BLOCK DIAGRAM
AINB
AIN
ENCODE
+5V GND
+5V
AD9049
T/H
TIMING
SUM
AMP
REFERENCE CKTS
ADC
DAC
ADC
DECODE
LOGIC
9
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
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
maintaining low power consumption.
A 2.5 V reference is included onboard, or the user can provide
an external reference voltage for gain control or matching of
multiple devices. Fabricated on an advanced BiCMOS process,
the AD9049 is packaged in space saving surface mount pack-
ages (SOIC, SSOP) and is specified over the industrial
(–40°C to +85°C) temperature range.
+5V
AIN
(+3.3V ± 0.512V)
+5V
0.1µF
0.1µF
0.1µF
3 4 2, 8, 11,
20, 22
10
5
AD9049
6
9
13
1, 7, 12,
21, 23
9 BITS
(2)
74AC574
ENCODE
Figure 1. Typical Connections
REV. A
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.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 617/329-4700
World Wide Web Site: http://www.analog.com
Fax: 617/326-8703
© Analog Devices, Inc., 1996


Analog Devices Semiconductor Electronic Components Datasheet

AD9049 Datasheet

9-Bit/ 30 MSPS ADC

No Preview Available !

AD9049 pdf
AD9049–SPECIFICATIONS
ELECTRICAL CHARACTERISTICS (VD, VDD = +5 V; internal reference; ENCODE = 30 MSPS unless otherwise noted)
Parameter
Temp
Test
Level
AD9049BR/BRS
Min Typ
Max
Units
RESOLUTION
9 Bits
DC ACCURACY
Differential Nonlinearity
Integral Nonlinearity
No Missing Codes
Gain Error
Gain Tempco1
+25°C
Full
+25°C
Full
Full
+25°C
Full
I
V
I
V
IV
I
V
0.5 1.0
0.5
0.5 1.0
0.5
GUARANTEED
± 1.0 ± 7.5
± 100
LSB
LSB
LSB
LSB
% FS
ppm/°C
ANALOG INPUT
Input Voltage Range
Input Offset Voltage
Input Resistance
Input Capacitance
Analog Bandwidth
+25°C
+25°C
Full
+25°C
+25°C
+25°C
V
I
IV
I
V
V
1.024
–10 +7
+25
–32 +51
3.5 5.0
6.5
5
100
V p-p
mV
mV
k
pF
MHz
BANDGAP REFERENCE
Output Voltage
Temperature Coefficient1
+25°C
Full
I
V
2.4 2.5
2.6
± 50
V
ppm/°C
SWITCHING PERFORMANCE
Maximum Conversion Rate
Minimum Conversion Rate
Aperture Delay (tA)
Aperture Uncertainty (Jitter)
Output Propagation Delay (tPD)2
DYNAMIC PERFORMANCE
Transient Response
Overvoltage Recovery Time
ENOBS
fIN = 2.3 MHz
fIN = 10.3 MHz
Signal-to-Noise Ratio (SINAD)3
fIN = 2.3 MHz
fIN = 10.3 MHz
Signal-to-Noise Ratio
(Without Harmonics)
fIN = 2.3 MHz
fIN = 10.3 MHz
2nd Harmonic Distortion
fIN = 2.3 MHz
fIN = 10.3 MHz
3rd Harmonic Distortion
fIN = 2.3 MHz
fIN = 10.3 MHz
Two-Tone Intermodulation
Distortion (IMD)4
Differential Phase
Differential Gain
+25°C
+25°C
+25°C
+25°C
Full
+25°C
+25°C
+25°C
+25°C
+25°C
+25°C
+25°C
+25°C
+25°C
+25°C
+25°C
+25°C
+25°C
+25°C
+25°C
I
IV
V
V
IV
V
V
V
I
V
I
V
I
V
I
V
I
V
V
V
30
1.5
2.7
5
5
10
10
8.56
8.01 8.51
53.3
50 53
53.5
51 53.3
–69
–67
–75
–66
65
0.15
0.35
3
15
–60
–58
MSPS
MSPS
ns
ps, rms
ns
ns
ns
ENOBs
ENOBs
dB
dB
dB
dB
dBc
dBc
dBc
dBc
dBc
Degrees
%
–2– REV. A


Part Number AD9049
Description 9-Bit/ 30 MSPS ADC
Maker Analog Devices
Total Page 12 Pages
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