AD9705 Datasheet دیتاشیت PDF دانلود

دیتاشیت - Analog Devices - (AD9704 - AD9707) TxDAC D/A Converters

شماره قطعه AD9705
شرح مفصل (AD9704 - AD9707) TxDAC D/A Converters
تولید کننده Analog Devices 
آرم Analog Devices 

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AD9705 شرح
Data Sheet
8-/10-/12-/14-Bit, 175 MSPS TxDAC
Digital-to-Analog Converters
175 MSPS update rate
Low power member of pin-compatible
TxDAC product family
Low power dissipation
12 mW at 80 MSPS, 1.8 V
50 mW at 175 MSPS, 3.3 V
Wide supply voltage: 1.7 V to 3.6 V
SFDR to Nyquist
AD9707: 84 dBc at 5 MHz output
AD9707: 83 dBc at 10 MHz output
AD9707: 75 dBc at 20 MHz output
Adjustable full-scale current outputs: 1 mA to 5 mA
On-chip 1.0 V reference
CMOS-compatible digital interface
Common-mode output: adjustable 0 V to 1.2 V
Power-down mode <2 mW at 3.3 V (SPI controllable)
Compact 32-lead LFCSP_VQ, RoHS compliant package
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 AD9704/
AD9705/AD9706/AD9707 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 AD9704/AD9705/AD9706/AD9707
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 AD9704/AD9705/AD9706/AD9707 parts
make them well-suited for portable and low power applications.
Power dissipation of the AD9704/AD9705/AD9706/AD9707 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 AD9704/AD9705/AD9706/AD9707 has an optional serial
peripheral interface (SPI®) that provides a higher level of program-
mability to enhance performance of the DAC. An adjustable
output, common-mode feature allows for easy interfacing to
other components that require common modes from 0 V to 1.2 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.
1. Pin Compatible. The AD9704/AD9705/AD9706/AD9707
line of TxDAC® converters is pin-compatible with the
AD9748/AD9740/AD9742/AD9744 TxDAC line
(LFCSP_VQ package).
2. Low Power. Complete CMOS DAC operates on a single
supply of 3.6 V down to 1.7 V, consuming 50 mW (3.3 V)
and 12 mW (1.8 V). The DAC full-scale current can be
reduced for lower power operation. Sleep and power-down
modes are provided for low power idle periods.
3. Self-Calibration. Self-calibration enables true 14-bit INL
and DNL performance in the AD9707.
4. Twos Complement/Binary Data Coding Support. Data
input supports twos complement or straight binary data
5. Flexible Clock Input. A selectable high speed, single-ended,
and differential CMOS clock input supports 175 MSPS
conversion rate.
6. Device Configuration. Device can be configured through
pin strapping, and SPI control offers a higher level of
7. Easy Interfacing to Other Components. Adjustable
common-mode output allows for easy interfacing to other
signal chain components that accept common-mode levels
from 0 V to 1.2 V.
8. On-Chip Voltage Reference. The AD9704/AD9705/AD9706/
AD9707 include a 1.0 V temperature-compensated band
gap voltage reference.
9. Industry-Standard 32-Lead LFCSP_VQ Package.
Rev. B
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.461.3113 ©2006–2011 Analog Devices, Inc. All rights reserved.

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