a
FEATURES
35 MSPS Encode Rate
16 pF Input Capacitance
550 mW Power Dissipation
Industry-Standard Pinouts
MIL-STD-883 Compliant Versions Available
Monolithic 8-Bit
Video A/D Converter
AD9048
FUNCTIONAL BLOCK DIAGRAM
NLINV 12
AD9048
NMINV 28
VIN 23
1
RT 18
R
APPLICATIONS
Professional Video Systems
Special Effects Generators
Electro-Optics
Digital Radio
Electronic Warfare (ECM, ECCM, ESM)
1
E
N
C
O
D
I
N
G
R
127
R/2
RM 27
R/2
128
R
D3
4
D3
13
D5
14
D6
15
D7
16
L
O
G
I
C
254
D2
3
L
A
T
C
H
D1 (MSB)
2
2
D8 (LSB)
R
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.
255
RB 26
CONVERT 17
6
10
VCC
7
8
VEE
9
5
11
DGND
19
25
AGND
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 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 inputs and outputs are TTL compatible.
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.
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.
The AD9048 A/D converter is available in versions compliant
with MIL-STD-883. Refer to the Analog Devices Military Products 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.
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Tel: 781/329-4700
www.analog.com
Fax: 781/326-8703
© 2003 Analog Devices, Inc. All rights reserved.
