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ADC3221, ADC3222, ADC3223, ADC3224
SBAS672B –JULY 2014–REVISED MARCH 2016
ADC322x
Dual-Channel, 12-Bit, 25-MSPS to 125-MSPS, Analog-to-Digital Converters
1 Features
3 Description
The ADC322x are a high-linearity, ultra-low power,
dual-channel, 12-bit, 25-MSPS to 125-MSPS, analog-
to-digital converter (ADC) family. The devices are
designed specifically to support demanding, high
input frequency signals with large dynamic range
requirements. An input clock divider allows more
flexibility for system clock architecture design and the
1
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Dual Channel
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12-Bit Resolution
Single Supply: 1.8 V
Serial LVDS Interface (SLVDS)
Flexible Input Clock Buffer with Divide-by-1, -2, -4
SNR = 70.2 dBFS, SFDR = 87 dBc at
fIN = 70 MHz
SYSREF
input
enables
complete
system
synchronization. The ADC322x family supports serial
low-voltage differential signaling (LVDS) in order to
reduce the number of interface lines, thus allowing for
high system integration density. The serial LVDS
interface is two-wire, where each ADC data are
serialized and output over two LVDS pairs. An
internal phase-locked loop (PLL) multiplies the
incoming ADC sampling clock to derive the bit clock
that is used to serialize the 12-bit output data from
each channel. In addition to the serial data streams,
the frame and bit clocks are also transmitted as
LVDS outputs.
•
Ultra-Low Power Consumption:
–
116 mW/Ch at 125 MSPS
•
•
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Channel Isolation: 105 dB
Internal Dither and Chopper
Support for Multi-Chip Synchronization
Pin-to-Pin Compatible with 14-Bit Version
Package: VQFN-48 (7 mm × 7 mm)
2 Applications
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Multi-Carrier, Multi-Mode Cellular Base Stations
Radar and Smart Antenna Arrays
Munitions Guidance
Device Information(1)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
ADC322x
VQFN (48)
7.00 mm × 7.00 mm
Motor Control Feedback
(1) For all available packages, see the orderable addendum at
the end of the datasheet.
Network and Vector Analyzers
Communications Test Equipment
Nondestructive Testing
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Microwave Receivers
Software-Defined Radios (SDRs)
Quadrature and Diversity Radio Receivers
Handheld Radio and Instrumentation
Performance at fS = 125 MSPS, fIN = 10 MHz
(SNR = 70.6 dBFS, SFDR = 100 dBc)
0
-10
-20
-30
-40
-50
-60
-70
-80
-90
-100
-110
-120
0
12.5
25
37.5
50
62.5
Frequency (MHz)
D201
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.