AD9432_15 Datasheet, PDF (1/16 Pages) Analog Devices – 12-Bit, 80 MSPS/105 MSPS ADC

FEATURES
On-chip reference and track-and-hold
On-chip input buffer
Power dissipation: 850 mW typical at 105 MSPS
500 MHz analog bandwidth
SNR: 67 dB @ 49 MHz AIN at 105 MSPS
SFDR: 80 dB @ 49 MHz AIN at 105 MSPS
2.0 V p-p analog input range
5.0 V supply operation
3.3 V CMOS/TTL outputs
Twos complement output format
APPLICATIONS
Communications
Base stations and zero-IF subsystems
Wireless local loop (WLL)
Local multipoint distribution service (LMDS)
HDTV broadcast cameras and film scanners
12-Bit, 80 MSPS/105 MSPS ADC
AD9432
GENERAL INTRODUCTION
The AD9432 is a 12-bit, monolithic sampling analog-to-digital
converter (ADC) with an on-chip track-and-hold circuit and is
optimized for high speed conversion and ease of use. The prod-
uct operates up to a 105 MSPS conversion rate with outstanding
dynamic performance over its full operating range.
The ADC requires only a single 5.0 V power supply and a 105 MHz
encode clock for full performance operation. No external refer-
ence or driver components are required for many applications.
The digital outputs are TTL-/CMOS-compatible, and a separate
output power supply pin supports interfacing with 3.3 V logic.
The encode input supports either differential or single-ended
mode and is TTL-/CMOS-compatible.
Fabricated on an advanced BiCMOS process, the AD9432 is
available in a 52-lead low profile quad flat package (LQFP) and
in a 52-lead thin quad flat package (TQFP_EP). The AD9432 is
specified over the industrial temperature range of −40°C to +85°C.
FUNCTIONAL BLOCK DIAGRAM
V_CC
V_DD
AIN
AIN
ENCODE
ENCODE
BUF
T/H
PIPELINE ¹²
ADC
12
OUTPUT
STAGING
TIMING
REF
AD9432
GND
VREFOUT VREFIN
Figure 1.
D11 TO D0
OR
Rev. F
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