14-Bit, 80 MSPS, A/D Converter AD9444
FEATURES
80 MSPS guaranteed sampling rate 100 dB two-tone SFDR with 69.3 MHz and 7...
14-Bit, 80 MSPS, A/D Converter AD9444
FEATURES
80 MSPS guaranteed sampling rate 100 dB two-tone SFDR with 69.3 MHz and 70.3 MHz 73.1 dB SNR with 70 MHz input 97 dBc SFDR with 70 MHz input Excellent linearity DNL = ±0.4 LSB typical INL = ±0.6 LSB typical 1.2 W power dissipation 3.3 V and 5 V supply operation 2.0 V p-p differential full-scale input LVDS outputs (ANSI-644 compatible) Data format select Output clock available
FUNCTIONAL BLOCK DIAGRAM
AGND AVDD1 AVDD2 DRGND DRVDD DFS DCS MODE BUFFER VIN+ VIN– T/H PIPELINE ADC 14
CMOS OR LVDS OUTPUT STAGING 2 28 D13–D0 2 DCO REF
05089-001
AD9444
OUTPUT MODE OR
CLK+ CLK–
CLOCK AND TIMING MANAGEMENT
VREF SENSE REFT REFB
Figure 1.
APPLICATIONS
Multicarrier, multimode cellular receivers Antenna array positioning Power amplifier linearization Broadband wireless Radar, infared imaging Communications instrumentation
Optional features allow users to implement various selectable operating conditions, including data format select and output data mode. The AD9444 is available in a 100-lead surface-mount plastic package (100-lead TQFP/EP) specified over the industrial temperature range (−40°C to +85°C).
PRODUCT HIGHLIGHTS
w
w
w
The AD9444 is a 14-bit monolithic, sampling analog-to-digital converter (ADC) with an on-chip, track-and-hold circuit and is optimized for power, small size, and ease of use. The product operates at up to an 80 MSPS conversion rate and is optimized for multicarrier, multimode receivers, such as those found...