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參數(shù)資料
| 型號： | AD5240BD |
| 元件分類： | ADC |
| 英文描述： | Analog-to-Digital Converter??? 12-Bit |
| 中文描述： | 12位模數(shù)轉(zhuǎn)換器 |
| 文件頁數(shù)： | 1/16頁 |
| 文件大小： | 364K |
| 代理商： | AD5240BD |
REV. A
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. No license is granted by implication or otherwise
under any patent or patent rights of Analog Devices.
a
AD5241/AD5242
Tel: 781/329-4700Fax: 781/326-8703
Analog Devices, Inc., 2002FUNCTIONAL BLOCK DIAGRAM
RDAC
REGISTER 1
ADDR
DECODE
8
PWR-ON
RESET
SERIAL INPUT REGISTER
AD5241
SHDN
V
DD
V
SS
SDA
SCL
GND
A
1
W
1
B
1
O
1
O
2
REGISTER 2
AD0
AD1
RDAC
REGISTER 1
ADDR
DECODE
8
PWR-ON
RESET
SERIAL INPUT REGISTER
AD5242
SHDN
V
DD
V
SS
SDA
SCL
GND
A
1
W
1
B
1
A
2
W
2
B
2
RDAC
REGISTER 2
O
2
O
1
REGISTER
1
AD0
AD1
FEATURES
256 Position
10 k
, 100 k
Low Tempco 30 ppm/ C
Internal Power ON Midscale Preset
Single Supply 2.7 V to 5.5 V or
Dual Supply 2.7 V for AC or Bipolar Operation
I
2
C-Compatible Interface with Reaback Capability
Extra Programmable Logic Outputs
, 1 M
APPLICATIONS
Multimedia, Video and Audio
Communications
Mechanical Potentiometer Replacement
Instrumentation: Gain, Offset Adjustment
Programmable Voltage-to-Current Conversion
Line Impedance Matching
GENERAL DESCRIPTION
The AD5241/AD5242 provides a single-/dual-channel, 256-
position digitally controlled variable resistor (VR) device. These
devices perform the same electronic adjustment function as a
potentiometer, trimmer or variable resistor. Each VR offers a
completely programmable value of resistance, between the A
terminal and the wiper, or the B terminal and the wiper. For
AD5242, the fixed A-to-B terminal resistance of 10 k
, 100 k
or 1 M
has a 1% channel-to-channel matching tolerance.
Nominal temperature coefficient of both parts is 30 ppm/
°
C.
Wiper position programming defaults to midscale at system
power ON. Once powered, the VR wiper position is programmed
by an I
2
C-compatible 2-wire serial data interface. Both parts
have available two extra programmable logic outputs that
enable users to drive digital loads, logic gates, LED drivers, and
analog switches in their system.
The AD5241/AD5242 is available in surface-mount (SO-14/-16)
packages and, for ultracompact solutions, TSSOP-14/-16 pack-
ages. All parts are guaranteed to operate over the extended
industrial temperature range of –40
°
C to +85
°
C. For 3-wire,
SPI-compatible interface applications, please refer to AD5200,
AD5201, AD5203, AD5204, AD5206, AD5231
*
, AD5232
*
,
AD5235
*
, AD7376, AD8400, AD8402, and AD8403 products.
I
2
C
-Compatible
256-Position Digital Potentiometers
*
Nonvolatile digital potentiometer.
I
2
C is a registered trademark of Philips Corporation.
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相關(guān)代理商/技術(shù)參數(shù) |
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| AD5240BD/883B | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Analog-to-Digital Converter， 12-Bit |
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| AD5240SD/883B | 制造商:AD 制造商全稱:Analog Devices 功能描述:FAST, COMPLETE 12-BIT A/D CONVERTERS |
| AD5240ZBD/883B | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Analog-to-Digital Converter， 12-Bit |
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