AD12401 Datasheet, PDF (1/28 Pages) Analog Devices – 12-Bit, 400 MSPS A/D Converter

FEATURES
Up to 400 MSPS sample rate
SNR of 63 dBFS @128 MHz
SFDR of 70 dBFS @128 MHz
VSWR of 1:1.5
High or low gain grades
Wideband ac-coupled input signal conditioning
Enhanced spurious-free dynamic range
Single-ended or differential ENCODE signal
LVDS output levels
Twos complement output data
APPLICATIONS
Communications test equipment
Radar and satellite subsystems
Phased array antennas, digital beams
Multichannel, multimode receivers
Secure communications
Wireless and wired broadband communications
Wideband carrier frequency systems
GENERAL DESCRIPTION
The AD12401 is a 12-bit analog-to-digital converter (ADC)
with a transformer-coupled analog input and digital post-
processing for enhanced SFDR. The product operates at up to
400 MSPS conversion rate with outstanding dynamic performance
in wideband carrier systems.
The AD12401 requires a 3.7 V analog supply and 3.3 V and
1.5 V digital supplies, and provides a flexible ENCODE signal
that can be differential or single ended. No external reference is
required.
The AD12401 package style is an enclosed 2.9" × 2.6" × 0.6"
module. Performance is rated over a 0°C to 60°C case
temperature range.
12-Bit, 400 MSPS A/D Converter
AD12401
FUNCTIONAL BLOCK DIAGRAM
AD12401
DATA
READY
A
ADC
A
DA0–DA11
POST-
CLK DISTRIBUTION PROCESSING
DB0–DB11
A_IN
ADC
B
DR_EN
CLOCK DISTRIBUTION
DIVIDE BY 2
DATA
READY
B
ENC
ENC
OROUT
Figure 1.
PRODUCT HIGHLIGHTS
1. Guaranteed sample rate up to 400 MSPS.
2. Input signal conditioning with optimized dynamic
performance to 175 MHz.
3. High and low gain grades available.
4. Additional performance options available (sample rates
>400 MSPS or second Nyquist zone operation); contact
sales.
5. Proprietary Advanced Filter Bank (AFB™) digital post-
processing from V Corp Technologies, Inc.
Rev. A
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