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| 型號(hào)： | AD5325 |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | Dual Rail-To-Rail,Voltage Output 12-Bit DACs(滿幅度電壓輸出雙12位D/A轉(zhuǎn)換器) |
| 中文描述： | 雙通道軌至軌電壓輸出12位DAC（滿幅度電壓輸出雙12位的D / A轉(zhuǎn)換器） |
| 文件頁數(shù)： | 1/9頁 |
| 文件大?。?/td> | 342K |
| 代理商： | AD5325 |
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Prelim Technical Information
AD5305/15/25*
FEATURES
AD5305: Four 8-Bit DACs in One Package
AD5315: Four 10-Bit DACs in One Package
AD5325: Four 12-Bit DACs in One Package
10-Pin MicroSOIC Package
Micro-Power Operation: 600
μ
A @ 5V
2-Wire Serial Interface
Power-Down to 200nA@5V, 50nA@3V
+2.5V to +5.5V Power Supply
Double-Buffered Input Logic
Guaranteed Monotonic By Design
Output Range: 0-V
REF
Power-On-Reset to Zero Volts
Simultaneous Update of Outputs (LDAC Function)
On-Chip Output Buffer Amplifiers with Rail-to-Rail
Operation
APPLICATIONS
Portable Battery-Powered Instruments
Digital Gain and Offset Adjustment
Programmable Voltage and Current Sources
Programmable Attenuators
GENERAL DESCRIPTION
The AD5305/15/25 are quad 8, 10 and 12-bit buffered voltage
output DACs which operate from a single +2.5V to +5.5V sup-
ply. Their on-chip precision output amplifiers allow rail-to-rail
output swing to be achieved. The AD5305/15/25 utilize a 2-wire
serial interface which operates at clock rates up to 400kHz. This
simple interface allows communication between multiple devices
on a single bus. The AD5305/15/25 contain an A0 pin which al-
lows the LSB of the 7-bit slave address to be set by the user. The
first six bits have been factory programmed and are always
000110.
The references for the four DACs are derived from one
reference pin. The parts incorporate a power-on-reset cir-
cuit that ensures that the DAC outputs power up to zero
volts and remain there until a valid write takes place to the
device. The parts contain a power-down feature which re-
duces the current consumption of the devices to 200nA at
5V (50nA at 3V) and provides software-selectable output
loads while in power-down mode. All DACs are powered-
down together over the serial interface.
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
which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Analog Devices.
The low power consumption of these parts in normal op-
eration make them ideally suited to portable battery-oper-
ated equipment. The power consumption is 3mW at 5V
reducing to 1μW in power-down mode.
PRODUCT HIGHLIGHTS
1.
Quad DAC in a 10-lead microSOIC package.
2.
Low Power, Single supply operation. This part operates
from a single +2.5V to +5.5V supply and consumes 1.3mW
at 3V and 3 mW at 5V making it ideal for battery-powered
applications.
3.
The on-chip output buffer amplifiers allow the outputs of
the DACs to swing rail-to-rail with a slew rate of 1V/μs.
4.
Reference input may be as high as V
DD
.
5.
2-Wire serial interface with clock speeds up to 400kHz.
6.
Power-down capability. When powered down the DACs
consume 50nA at 3V and 200nA at 5V.
Prelim.B 9/98
+2.5 V to +5.5 V, Quad Rail-To-Rail,
Voltage Output 8/10/12-Bit DACs
FUNCTIONAL BLOCK DIAGRAM
One Technology Way, P.O. Box 9106, Norwood. MA 02062-9106, U.S.A.
WWW: http://www.analog.com
Tel: 781/329-4700
Fax: 781/326-8703
Analog Devices, Inc., 1998
DAC
LATCH
DAC A
INPUT
LATCH
CONTROL
LOGIC
AD5305/15/25
VOUT A
VOUT B
DAC
LATCH
DAC B
IN PUT
LATCH
DAC
LATCH
DAC C
IN PUT
LATCH
DAC
LATCH
DAC D
IN PUT
LATCH
VOUT C
VOUT D
REF IN
VDD
SDA
SC L
POW ER-ON
RESET
A0
GND
*Protected by U.S. Patent No. 5684481
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AD5315 | Dual Rail-To-Rail,Voltage Output 10-Bit DACs(滿幅度電壓輸出雙10位D/A轉(zhuǎn)換器) |
| AD5332 | 2.5 V to 5.5 V, 230uA, Parallel Interface Dual Voltage-Output 8-/10-/12-Bit DACs |
| AD5333BRU | 2.5 V to 5.5 V, 230uA, Parallel Interface Dual Voltage-Output 8-/10-/12-Bit DACs |
| AD5332BRU | 2.5 V to 5.5 V, 230uA, Parallel Interface Dual Voltage-Output 8-/10-/12-Bit DACs |
| AD5333 | 2.5 V to 5.5 V, 115 uA, Parallel Interface Single Voltage-Output 8-/10-/12-Bit DACs |
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