AD10201_15 Datasheet, PDF (1/20 Pages) Analog Devices – Dual-Channel, 12-Bit 105 MSPS IF Sampling A/D Converter

a
FEATURES
Two Independent 12-Bit, 105 MSPS ADCs
Channel-to-Channel Isolation, > 90 dB
AC-Coupled Signal Conditioning Included
Gain Flatness up to Nyquist, < 0.1 dB
Input VSWR 1.05:1 to Nyquist
80 dB Spurious-Free Dynamic Range
Two’s Complement Output Format
3.3 V or 5 V CMOS-Compatible Output Levels
900 mW Per Channel
Single-Ended or Differential Input
250 MHz Input Bandwidth
APPLICATIONS
Wireless and Wired Broadband Communications
Base Stations and “Zero-IF” or Direct IF Sampling
Subsystems
Wireless Local Loop (WLL)
Local Multipoint Distribution Service (LMDS)
Radar and Satellite Subsystems
Dual-Channel, 12-Bit 105 MSPS
IF Sampling A/D Converter
AD10201
PRODUCT DESCRIPTION
The AD10201 offers two complete ADC channels with on-module
signal conditioning for improved dynamic performance. Each wide
dynamic range ADC has a transformer coupled front end optimized
for direct IF sampling. The AD10201 has on-chip track-and-hold
circuitry, and uses an innovative architecture to achieve 12-bit,
105 MSPS performance. The AD10201 uses innovative high
density circuit design to achieve exceptional performance while still
maintaining excellent isolation and providing for board area savings.
The AD10201 operates with 5.0 V supply for the analog-to-digital
conversion. Each channel is completely independent, allowing
operation with independent ENCODE and analog inputs. The
AD10201 is available as a 35 mm square 385-lead BGA package.
PRODUCT HIGHLIGHTS
1. Guaranteed sample rate of 105 MSPS
2. Input signal conditioning included with full-power bandwidth
to 250 MHz
3. Industry-leading IF sampling performance
D0A
(LSB)
D1A
D2A
D3A
D4A
D5A
D6A
D7A
D8A
D9A
D10A
D11A
(MSB)
FUNCTIONAL BLOCK DIAGRAM
A_INA1 A_INA2
A_INB1 A_INB2
T1A
T1B
50⍀
T/H
ADC
AD10201
50⍀
T/H
ADC
12
12
OUTPUT
RESISTORS
TIMING
REF
REF
12
12
OUTPUT
RESISTORS
TIMING
D0B
(LSB)
D1B
D2B
D3B
D4B
D5B
D6B
D7B
D8B
D9B
D10B
D11B
(MSB)
ENCODEA ENCODEA REF_A_OUT REF_B_OUT ENCODEB ENCODEB
REV. 0
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© Analog Devices, Inc., 2002