12-Bit, 400 MSPS A/D Converter
AD12401
FUNCTIONAL BLOCK DIAGRAM
FEATURES
Up to 400 MSPS sample rate
SNR of 63 dBFS @128 MHz
DATA
READY
AD12401
A
SFDR of 70 dBFS @128 MHz
VSWR of 1:1.5
High or low gain grades
ADC
A
DA0–DA11
Wideband ac-coupled input signal conditioning
Enhanced spurious-free dynamic range
Single-ended or differential ENCODE signal
LVDS output levels
POST-
PROCESSING
DB0–DB11
DR_EN
CLK DISTRIBUTION
A
IN
ADC
B
Twos complement output data
DATA
READY
B
APPLICATIONS
CLOCK DISTRIBUTION
DIVIDE BY 2
Communications test equipment
Radar and satellite subsystems
Phased array antennas, digital beams
Multichannel, multimode receivers
Secure communications
OROUT
ENC
ENC
Figure 1.
Wireless and wired broadband communications
Wideband carrier frequency systems
GENERAL DESCRIPTION
PRODUCT HIGHLIGHTS
1. Guaranteed sample rate up to 400 MSPS.
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.
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.
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.
5. Proprietary Advanced Filter Bank (AFB™) digital post-
processing from V Corp Technologies, Inc.
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.
Rev. A
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