10-Bit, 40 MSPS/60 MSPS
A/D Converter
a
AD9050
FUNCTIO NAL BLO CK D IAGRAM
FEATURES
Low Pow er: 315 m W @ 40 MSPS, 345 m W @ 60 MSPS
On-Chip T/ H, Reference
GND
+5V
Single +5 V Pow er Supply Operation
Selectable 5 V or 3 V Logic I/ O
SNR: 53 dB Minim um at 10 MHz w / 40 MSPS
+5V
AD9050
REFERENCE CKTS
ADC
AINB
AIN
T/H
APPLICATIONS
Medical Im aging
Instrum entation
Digital Com m unications
Professional Video
10
DECODE
LOGIC
SUM
AMP
DAC
ADC
TIMING
ENCODE
P RO D UCT D ESCRIP TIO N
+5V
T he AD9050 is a complete 10-bit monolithic sampling analog-
to-digital converter (ADC) with an onboard track-and-hold and
reference. T he unit is designed for low cost, high performance
applications and requires only +5 V and an encode clock to
achieve 40 MSPS or 60 MSPS sample rates with 10-bit resolution.
2, 8, 11,
20, 22
4
3
AIN
10
(+3.3V ± 0.512V)
0.1µF
+5V
5
6
9
10 BITS
(2)
74AC574
AD9050
0.1µF
T he encode clock is T T L compatible and the digital outputs
are CMOS; both can operate with 5 V/3 V logic, selected by the
user. T he two-step architecture used in the AD9050 is opti-
mized to provide the best dynamic performance available while
maintaining low power consumption.
0.1µF
1, 7, 12,
21, 23
13
ENCODE
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 pro-
cess, the AD9050 is packaged in space saving surface mount
packages (SOIC, SSOP) and is specified over the industrial
(–40°C to +85°C) temperature range. T he 60 MSPS version
(AD9050BRS-60) is only available in the SSOP package.
Figure 1. Typical Connections
REV. B
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reliable. However, no responsibility is assum ed by Analog Devices for its
use, nor for any infringem ents of patents or other rights of third parties
which m ay result from its use. No license is granted by im plication or
otherwise under any patent or patent rights of Analog Devices.
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© Analog Devices, Inc., 1997