Monolithic 8-Bit
a
Video A/D Converter
AD9048
FUNCTIONAL BLOCK DIAGRAM
FEATURES
35 MSPS Encode Rate
16 pF Input Capacitance
550 mW Power Dissipation
Industry-Standard Pinouts
MIL-STD-883 Compliant Versions Available
12
28
23
18
NLINV
NMINV
AD9048
V
IN
1
2
R
T
R
R
1
2
APPLICATIONS
D1 (MSB)
D2
E
N
C
O
D
I
Professional Video Systems
Special Effects Generators
Electro-Optics
Digital Radio
Electronic Warfare (ECM, ECCM, ESM)
3
D3
127
128
L
A
T
C
H
4
D3
R/2
R/2
N
G
R
M
27
13
14
15
16
D5
L
O
G
I
D6
D7
C
R
R
254
255
D8 (LSB)
GENERAL DESCRIPTION
26
17
R
B
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, offers enhancements over its predecessor.
Lower power dissipation makes the AD9048 attractive for a
variety of system designs.
CONVERT
11
DGND AGND
6
10
19 25
5
8
9
7
V
V
EE
CC
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.
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.
Clocked latching comparators, encoding logic and output buffer
registers operating at minimum rates of 35 MSPS preclude 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 in-
puts and outputs are TTL compatible.
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.
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.
REV. C
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: 781/329-4700
Fax: 781/326-8703
World Wide Web Site: http://www.analog.com
© Analog Devices, Inc., 1999