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Analog Devices Semiconductor Electronic Components Datasheet

AD9048 Datasheet

Monolithic 8-Bit Video A/D Converter

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a
Monolithic 8-Bit
Video A/D Converter
AD9048
FEATURES
35 MSPS Encode Rate
16 pF Input Capacitance
550 mW Power Dissipation
Industry-Standard Pinouts
MIL-STD-883 Compliant Versions Available
APPLICATIONS
Professional Video Systems
Special Effects Generators
Electro-Optics
Digital Radio
Electronic Warfare (ECM, ECCM, ESM)
GENERAL DESCRIPTION
The AD9048 is an 8-bit, 35 MSPS flash converter, made on
a high speed bipolar process, which is an alternate source for
the TDC1048 unit, and offers enhancements over its
predecessor. Lower power dissipation makes the AD9048
attractive for a variety of system designs.
Because of its wide bandwidth, it is an ideal choice for real-time
conversion of video signals. Input bandwidth is flat with no
missing codes.
Clocked latching comparators, encoding logic, and output
buffer registers operating at minimum rates of 35 MSPS pre-
clude a need for a sample-and-hold (S/H) or track-and-hold
(T/H) in most system designs using the AD9048. All digital
control inputs and outputs are TTL compatible.
Devices operating over two ambient temperature ranges and
with two grades of linearity are available. Linearities of either
0.5 LSB or 0.75 LSB can be ordered for a commercial range of
0°C to 70°C or extended case temperatures of –55°C to +125°C.
FUNCTIONAL BLOCK DIAGRAM
NLINV 12
NMINV 28
VIN 23
RT 18
R
R
RM 27
R/2
R/2
1
2
127
128
R
254
R
RB 26
255
CONVERT 17
6 10
789
AD9048
1 D1 (MSB)
E
N 2 D2
C
O 3 D3
DL
I A 4 D3
NT
G C 13 D5
H
L 14 D6
O
G 15 D7
I
C 16 D8 (LSB)
5 11 19 25
VCC VEE DGND AGND
Commercial versions are packaged in 28-lead DIPs; extended
temperature versions are available in ceramic DIP and ceramic
LCC packages. Both commercial units and MIL-STD-883 units
are standard products.
The AD9048 A/D converter is available in versions compliant
with MIL-STD-883. Refer to the Analog Devices Military Prod-
ucts Databook or current AD9048/883B data sheet for detailed
specifications.
REV. F
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 that
may result from its use. No license is granted by implication or otherwise
under any patent or patent rights of Analog Devices. Trademarks and
registered trademarks are the property of their respective companies.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
www.analog.com
Fax: 781/326-8703 © 2003 Analog Devices, Inc. All rights reserved.


Analog Devices Semiconductor Electronic Components Datasheet

AD9048 Datasheet

Monolithic 8-Bit Video A/D Converter

No Preview Available !

AD9048–SPECIFICATIONS (typical with nominal supplies, unless otherwise noted.)
ABSOLUTE MAXIMUM RATINGS1
VCC to DGND . . . . . . . . . . . . . . . . . –0.5 V DC to +7.0 V DC
AGND to DGND . . . . . . . . . . . . . . –0.5 V DC to +0.5 V DC
VEE to AGND . . . . . . . . . . . . . . . . . +0.5 V DC to –7.0 V DC
VIN, VRT, or VRB to AGND . . . . . . . . . . . . . . . . . 0.5 V to VEE
VRT to VRB . . . . . . . . . . . . . . . . . . . . –2.2 V DC to +2.2 V DC
CONV, NMINV or NLINV to DGND–0.5 V DC to +5.5 V DC
Applied Output Voltage to DGND –0.5 V DC to +5.5 V DC2
Applied Output Current, Externally Forced
. . . . . . . . . . . . . . . . . . . . . . . . . . . . –1.0 mA to +6.0 mA3, 4
Output Short-Circuit Duration . . . . . . . . . . . . . . . . . 1.0 sec5
Operating Temperature Range (Ambient)
AD9048JJ/KJ/JQ/KQ . . . . . . . . . . . . . . . . . . . . 0°C to 70°C
AD9048SE/SQ/TE/TQ . . . . . . . . . . . . . . –55°C to +125°C
Maximum Junction Temperature (Plastic) . . . . . . . . . 150°C6
Maximum Junction Temperature (Hermetic) . . . . . . . 150°C6
Lead Temperature (Soldering, 10 sec) . . . . . . . . . . . . 300°C
Storage Temperature Range . . . . . . . . . . . . –65°C to +150°C
ELECTRICAL CHARACTERISTICS (VCC = +5.0 V; VEE = –5.2 V; Differential Reference Voltage = 2.0 V, unless otherwise noted.)
Parameter (Conditions)
RESOLUTION
DC ACCURACY
Differential Nonlinearity
Integral Nonlinearity
No Missing Codes
INITIAL OFFSET ERROR
Top of Reference Ladder
Bottom of Reference Ladder
Offset Drift Coefficient
ANALOG INPUT
Input Voltage Range
Temp
25°C
Full
25°C
Full
Full
25°C
Full
25°C
Full
Full
Full
Input Bias Current7
Input Resistance
Input Capacitance
Full Power Bandwidth8
REFERENCE INPUT
Positive Reference Voltage9
Negative Reference Voltage9
Differential Reference Voltage
Reference Ladder Resistance
Ladder Temperature Coefficient
Reference Ladder Current
Reference Input Bandwidth
DYNAMIC PERFORMANCE10
Conversion Rate
Aperture Delay
Aperture Uncertainty (Jitter)
Output Delay (tPD)
Output Hold Time (tOH)11
Transient Response12
Overvoltage Recovery Time13
Rise Time
Fall Time
Output Time Skew14
NMINV and NLINV INPUTS
0.4 V Input Current
2.4 V Input Current
5.5 V Input Current
CONVERT INPUT
Logic “1” Voltage
Logic “0” Voltage
Logic “1” Current
Logic “0” Current
Input Capacitance
Convert Pulsewidth (LOW)
Convert Pulsewidth (HIGH)
25°C
Full
25°C
Full
25°C
25°C
Full
Full
Full
Full
Full
Full
25°C
25°C
25°C
25°C
25°C
25°C
25°C
25°C
25°C
25°C
25°C
Full
Full
Full
Full
Full
Full
Full
25°C
25°C
25°C
Test
Level
AD9048JJ/JQ
Min Typ Max
8
I 0.4 0.75
VI 1.0
I 0.6 0.75
VI 1.0
VI Guaranteed
I 5 12
VI 12
I 48
VI 8
V 20
V –2.1;
+0.1
I 36 60
VI 100
I 200 300
VI 40
IV 16 20
IV 10 15
V 0.0
V –2.0
V 2.0
VI 30 60 125
V 0.22
VI 23 40
V 10
I 35 38
IV 2.4 5
IV 25 50
I 13 15
I 58
IV 6 20
V8
I9
I 14
I 4.5 7
VI 200
VI 150
VI 150
VI 2.0
VI 0.8
VI 150
VI 500
IV 4 6
I 18
I 10
AD9048KJ/KQ
Min Typ Max
8
0.3 0.5
0.75
0.4 0.5
0.75
Guaranteed
5 12
12
48
8
20
–2.1;
+0.1
36 60
100
200 300
40
16 20
10 15
0.0
–2.0
2.0
30 60 125
0.22
23 40
10
35 38
2.4 5
25 50
9 15
58
6 20
8
9
14
4.5 7
200
150
150
2.0
4
18
10
0.8
150
500
6
AD9048SE/SQ
Min Typ Max
8
AD9048TE/TQ
Min Typ Max
8
Unit
Bits
0.4
0.6
Guaranteed
0.75
1.0
0.75
1.0
0.3 0.5
0.75
0.4 0.5
0.75
Guaranteed
LSB
LSB
LSB
LSB
5 12
12
48
8
20
5 12
12
48
8
20
mV
mV
mV
mV
µV/°C
–2.1;
+0.1
36 60
100
200 300
40
16 20
10 15
–2.1;
+0.1
36 60
100
200 300
40
16 20
10 15
V
µA
µA
k
k
pF
MHz
0.0
–2.0
2.0
30 60 125
0.22
23 40
10
0.0
–2.0
2.0
30 60 125
0.22
23 40
10
V
V
V
/°C
mA
MHz
35 38
2.4 5
25 50
9 15
58
6 20
8
9
14
4.5 7
35 38
2.4 5
25 50
9 15
58
6 20
8
9
14
4.5 7
MHz
ns
ps
ns
ns
ns
ns
ns
ns
ns
200 200 µA
150 150 µA
150 150 µA
2.0
4
18
10
2.0 V
0.8 0.8 V
150 150 µA
500 500 µA
6
46
pF
18 ns
10 ns
–2– REV. F


Part Number AD9048
Description Monolithic 8-Bit Video A/D Converter
Maker Analog Devices
Total Page 8 Pages
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