PRELIMINARY TECHNICAL DATA
12-Bit, 170 MSPS
3.3V A/D Converter
a
Preliminary Technical Data
AD9430
FEATURES
PRODUCT DESCRIPTION
SNR = 65dB @ Fin up to 65MHz at 170Msps
ENOB of 10.3 @ Fin up to 65MHz at 170 Msps (-1dBFs)
SFDR = -80dBc @ Fin up to 65MHz at 170Msps (-1dBFs)
Excellent Linearity:
The AD9430 is a 12-bit monolithic sampling analog–to–
digital converter with an on–chip track–and–hold circuit and
is optimized for low cost, low power, small size and ease of
use. The product operates up to 170 Msps conversion rate
and is optimized for outstanding dynamic performance in
wideband carrier systems.
- DNL = +/- 1 lsb (typ)
- INL = +/- 1.5 lsb (typ)
Two Output Data options
- Demultiplexed 3.3V CMOS outputs each at 85 Msps
- LVDS at 170Msps
700 MHz Full Power Analog Bandwidth
On–chip reference and track/hold
Power dissipation = 1.25W typical at 170Msps
1.5V Input voltage range
The ADC requires a +3.3V power supply and a differential
encode clock for full performance operation. No external
reference or driver components are required for many
applications. The digital outputs are TTL/CMOS or LVDS
compatible. Separate output power supply pins support
interfacing with 3.3V CMOS logic.
+3.3V Supply Operation
Output data format option
Data Sync input and Data Clock output provided
Interleaved or parallel data output option (CMOS)
Clock Duty Cycle Stabilizer.
An output data format select option of two’s complement or
offset binary is supported. In CMOS mode two output buses
support demultiplexed data up to 85 Msps rates. A data sync
input is supported for proper output data port alignment and
a data clock output is available for proper output data timing.
Fabricated on an advanced BiCMOS process, the AD9430 is
available in a 100 pin surface mount plastic package (100
TQFP ePAD) specified over the industrial temperature range
(–40°C to +85°C).
APPLICATIONS
Wireless and Wired Broadband Communications
-
-
Wideband carrier frequency systems
Cable Reverse Path
Communications Test Equipment
Radar and Satellite sub-systems
Power Amplifier Linearization
DrGND
DrVDD AVDD
VREF
AGND
SENSE
Scaleable
Reference
AD9430
Data(24), OR(2)
LVDS
Outputs
AIN+
AIN-
ADC
12-bit
Pipeline
Core
Track &
Hold
12
Data(12), OR(1)
Data(12), OR(1)
A port
B port
CMOS
Outputs
DS+
DS-
ENC+
Clock
Management
ENC-
Select CMOS or LVDS
DCO+
DCO-
S1
S2
S4
S5
AD9430 FUNCTIONAL BLOCK DIAGRAM
REV. PrG 4/01/2002
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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
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© Analog Devices, Inc., 2002