AD9705 查看數據表（PDF） - Analog Devices
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AD9705 Datasheet PDF : 52 Pages
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GENERAL DESCRIPTION
The AD9704/AD9705/AD9706/AD9707 are the fourth-
generation family in the TxDAC series of high performance,
CMOS digital-to-analog converters (DACs). This pin-compatible,
8–/10–/12–/14–bit resolution family is optimized for low power
operation, while maintaining excellent dynamic performance.
The AD970x family is pin-compatible with the AD9748/AD9740/
AD9742/AD9744 family of TxDAC converters and is specifically
optimized for the transmit signal path of communication systems.
All of the devices share the same interface, LFCSP_VQ package,
and pinout, providing an upward or downward component
selection path based on performance, resolution, and cost.
The AD970x offers exceptional ac and dc performance, while
supporting update rates up to 175 MSPS.
The flexible power supply operating range of 1.7 V to 3.6 V and
low power dissipation of the AD970x parts make them well-suited
for portable and low power applications.
AD9704/AD9705/AD9706/AD9707
Power dissipation of the AD970x can be reduced to 15 mW, with
a small trade-off in performance, by lowering the full-scale
current output. In addition, a power-down mode reduces the
standby power dissipation to approximately 2.2 mW.
The AD970x has an optional serial peripheral interface (SPI) that
provides a higher level of programmability to enhance performance
of the DAC. An adjustable output, common-mode feature allows
for easy interfacing to other components that require common
modes greater than 0 V.
Edge-triggered input latches and a 1.0 V temperature-compensated
band gap reference have been integrated to provide a complete,
monolithic DAC solution. The digital inputs support 1.8 V and
3.3 V CMOS logic families.
Rev. 0 | Page 3 of 52
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