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參數資料
| 型號： | EVAL-AD5680EB |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | 5 V 18-Bit nanoDAC in a SOT-23 |
| 中文描述： | 5伏18位nanoDAC系列采用SOT - 23 |
| 文件頁數： | 1/20頁 |
| 文件大?。?/td> | 355K |
| 代理商： | EVAL-AD5680EB |
5 V 18-Bit
nano
DAC
TM
in a SOT-23
AD5680
FEATURES
Single 18-bit
nano
DAC
18-bit monotonic
12-bit accuracy guaranteed
Tiny 8-lead SOT-23 package
Power-on reset to zero scale/midscale
4.5 V to 5.5 V power supply
Serial interface
Rail-to-rail operation
SYNC interrupt facility
Temperature range 40°C to +105°C
APPLICATIONS
Closed-loop process control
Low bandwidth data acquisition systems
Portable battery-powered instruments
Gain and offset adjustment
Precision setpoint control
GENERAL DESCRIPTION
Rev. 0
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.
Trademarks and registered trademarks are the property of their respective owners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.461.3113
2006 Analog Devices, Inc. All rights reserved.
www.analog.com
FUNCTIONAL BLOCK DIAGRAM
V
OUT
V
FB
V
DD
GND
V
REF
AD5680
18-BIT
DAC
REF(+)
PRESET
DAC
REGISTER
CINPUT
LOGIC
DIN
SCLK
SYNC
0
OUTPUT
Figure 1.
PRODUCT HIGHLIGHTS
The AD5680, a member of the
nano
DAC family, is a single,
18-bit buffered voltage-out DAC that operates from a single
4.5 V to 5.5 V supply and is 18-bit monotonic.
The AD5680 requires an external reference voltage to set the
output range of the DAC. The part incorporates a power-on
reset circuit that ensures the DAC output powers up to 0 V
(AD5680-1) or to midscale (AD5680-2) and remains there until
a valid write takes place.
The low power consumption of this part in normal operation
makes it ideally suited to portable battery-operated equipment.
The power consumption is 1.6 mW at 5 V.
The AD5680 on-chip precision output amplifier allows rail-to-
rail output swing to be achieved. For remote sensing applications,
the output amplifier’s inverting input is available to the user.
The AD5680 uses a versatile 3-wire serial interface that operates
at clock rates up to 30 MHz, and is compatible with standard
SPI, QSPI, MICROWIRE, and DSP interface standards.
1.
18 bits of resolution.
2.
12-bit accuracy guaranteed for 18-bit DAC.
3.
Available in an 8-lead SOT-23.
4.
Low power. Typically consumes 1.6 mW at 5 V.
5.
Power-on reset to zero scale or to midscale.
RELATED DEVICES
AD5662
16-bit DAC in SOT-23.
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