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AD9744ARRL Datasheet

Part NameDescriptionManufacturer
AD9744ARRL 14-Bit, 210 MSPS TxDAC D/A converter ADI
Analog Devices ADI
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GENERAL DESCRIPTION
The AD9744 is a 14-bit resolution, wideband, third generation member of the TxDAC series of high performance, low power CMOS digital-to-analog converters (DACs). The TxDAC family,
consisting of pin-compatible 8-, 10-, 12-, and 14-bit DACs, is specifically optimized for the transmit signal path of communication systems. All of the devices share the same interface options, small outline package, and pinout, providing an upward or downward component selection path based on performance, resolution, and cost. The AD9744 offers exceptional ac and dc performance while supporting update rates up to 210 MSPS.

FEATURES
High performance member of pin-compatible
TxDAC product family
Excellent spurious-free dynamic range performance
SFDR to Nyquist
83 dBc at 5 MHz output
80 dBc at 10 MHz output
73 dBc at 20 MHz output
SNR at 5 MHz output, 125 MSPS: 77 dB
Twos complement or straight binary data format
Differential current outputs: 2 mA to 20 mA
Power dissipation: 135 mW at 3.3 V
Power-down mode: 15 mW at 3.3 V
On-chip 1.2 V reference
CMOS-compatible digital interface
28-lead SOIC, 28-lead TSSOP, and 32-lead LFCSP packages
Edge-triggered latches

APPLICATIONS
Wideband communication transmit channel
Direct IFs
Base stations
Wireless local loops
Digital radio links
Direct digital synthesis (DDS)
Instrumentation

DC SPECIFICATIONS
TMIN to TMAX, AVDD = 3.3 V, DVDD = 3.3 V, CLKVDD = 3.3 V, IOUTFS = 20 mA, unless otherwise noted.

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