AD13280_15 Datasheet, PDF (1/28 Pages) Analog Devices – Dual-Channel, 12-Bit, 80 MSPS ADC with Analog Input Signal Conditioning

FEATURES
Dual 80 MSPS, minimum sample rate
Channel-to-channel matching, ±1% gain error
90 dB channel-to-channel isolation
DC-coupled signal conditioning
80 dB spurious-free dynamic range
Selectable bipolar inputs (±1 V and ±0.5 V ranges)
Integral single-pole, low-pass Nyquist filter
Twos complement output format
3.3 V compatible outputs
1.85 W per channel
Dual-Channel, 12-Bit, 80 MSPS ADC
with Analog Input Signal Conditioning
AD13280
APPLICATIONS
Radar processing (optimized for I/Q baseband operation)
Phased array receivers
Multichannel, multimode receivers
GPS antijamming receivers
Communications receivers
PRODUCT HIGHLIGHTS
1. Guaranteed sample rate of 80 MSPS.
2. Input signal conditioning; gain and impedance match.
3. Single-ended, differential, or off-module filter option.
4. Fully tested/characterized full channel performance.
FUNCTIONAL BLOCK DIAGRAM
AMP-IN-A-2 AMP-IN-A-1
AMP-IN-B-2 AMP-IN-B-1
AMP-OUT-A
A–IN
A+IN
DROUTA
D0A (LSB)
D1A
D2A
D3A
D4A
D5A
D6A
D7A
D8A
AD13280
VREF
DROUT
12
9
100Ω OUTPUT TERMINATORS
TIMING
3
VREF
DROUT
12
100Ω OUTPUT TERMINATORS
7
TIMING
5
ENCODEA ENCODEA D9A D10A D11A
(MSB)
D0B D1B D2B D3B D4B D5B D6B
(LSB)
Figure 1.
AMP-OUT-B
B+IN
B–IN
DROUTB
ENCODEB
ENCODEB
D11B (MSB)
D10B
D9B
D8B
D7B
Rev. C
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