AD9048_15 Datasheet, PDF (1/8 Pages) Analog Devices – Monolithic 8-Bit Video A/D Converter

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
V_IN 23
1
R_T 18
R
2
R
127
R/2
R_M 27
R/2
128
R
254
R
255
R_B 26
CONVERT 17
6 10
789
AD9048
1 D1 (MSB)
E
N
2 D2
C
O
3 D3
D
L
I
A 4 D3
N
T
G
C 13 D5
H
L
14 D6
O
G
15 D7
I
C
16 D8 (LSB)
5 11 19 25
V_CC
V_EE
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
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