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AD5273EVAL Datasheet

  • AD5273EVAL

  • 64-Position OTP Digital Potentiometer

  • 747.06KB

  • 20頁

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64-Position OTP Digital Potentiometer
AD5273
FEATURES
64 Positions
OTP (One-Time-Programmable)
1
Set-and-Forget
Resistance Setting
1 k , 10 k , 50 k , 100 k End-to-End Terminal Resistance
Compact Standard SOT23-8 Package
Ultralow Power: I
DD
= 5 A Max
Fast Settling Time: t
S
= 5 s Typ in Power-Up
I
2
C Compatible Digital Interface
Computer Software
2
Replaces C in Factory Programming
Applications
Wide Temperature Range: 鈥?0 C to +105 C
5 V Programming Voltage
Low Operating Voltage, 2.7 V to 5.5 V
OTP Validation Check Function
APPLICATIONS
Systems Calibrations
Electronics Level Settings
Mechanical Trimmers
廬
Replacement in New Designs
Automotive Electronics Adjustments
Transducer Circuits Adjustments
Programmable Filters up to 6 MHz BW
3
FUNCTIONAL BLOCK DIAGRAM
SCL
SDA
I
2
C INTERFACE
AND
CONTROL LOGIC
A
W
A0
AD5273
WIPER
REGISTER
FUSE
LINK
B
V
DD
GND
In addition, for applications that program AD5273 at the factory,
Analog Devices offers device programming software
2
running in
Windows
廬
NT, 2000, and XP operating systems. This software
application effectively replaces any external I
2
C controllers, which
in turn enhances users鈥?systems time-to-market.
AD5273 is available in 1 k , 10 k , 50 k , and 100 k in
compact SOT23 8-lead standard package and operates from
鈥?0擄C to +105擄C.
Besides its unique OTP feature, the AD5273 lends itself well to
general digital potentiometer applications due to its effective
resolution, array resistance options, small footprint, and low cost.
An AD5273 evaluation kit and software are available. The kit includes
the connector and cable that can be converted for further factory
programming applications.
For applications that require dynamic adjustment of resistance
settings with nonvolatile EEMEM, users should refer to AD523x
and AD525x families of nonvolatile memory digital potentiometers.
GENERAL DESCRIPTION
The AD5273 is a 64-position, One-Time-Programmable (OTP)
digital potentiometer
4
that employs fuse link technology to achieve
the permanent program setting. This device performs the same
electronic adjustment function as most mechanical trimmers and
variable resistors. It allows unlimited adjustments before perma-
nently setting the resistance values. The AD5273 is programmed
using a 2-wire, I
2
C compatible digital control. During the write
mode, a fuse blow command is executed after the 鏗乶al value
is determined, therefore freezing the wiper position at a given
setting (analogous to placing epoxy on a mechanical trimmer).
When this permanent setting is achieved, the value will not change
regardless of the supply variations or environmental stresses under
normal operating conditions. To verify the success of permanent
programming, Analog Devices patterned the OTP validation such
that the fuse status can be discerned from two validation bits in
the read mode.
NOTES
1
One-Time-Programmable鈥擴(kuò)nlimited adjustments before permanent setting.
2
ADI cannot guarantee the software to be 100% compatible in all systems due to
the wide variations in computer con鏗乬urations.
3
Applies to 1 k parts only.
4
The terms digital potentiometer, VR, and RDAC are used interchangeably.
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. No license is granted by implication or other-
wise under any patent or patent rights of Analog Devices.Trademarks and
registered trademarks are the property of their respective companies.
One Technology Way, P Box 9106, Norwood, MA 02062-9106, U.S.A.
.O.
Tel: 781/329-4700
www.analog.com
Fax: 781/326-8703
漏 Analog Devices, Inc., 2002. All rights reserved.

AD5273EVAL 產(chǎn)品屬性

  • 1

  • 編程器，開發(fā)系統(tǒng)

  • 評(píng)估演示板和套件

  • -

  • 數(shù)字電位器

  • -

  • AD5273

  • -

  • -

  • 板

  • AD5273BRJZ10-R7DKR-ND - IC DGTL POT 64P 10K OTP SOT23-8AD5273BRJZ50-REEL7TR-ND - IC POT DGTL 50K 64POS SOT23AD5273BRJZ100-R7TR-ND - IC POT DGTL 1K 64POS SOT23AD5273BRJZ1-REEL7TR-ND - IC POT DGTL 1K 64POS SOT23AD5273BRJZ10-R7CT-ND - IC DGTL POT 64P 10K OTP SOT23-8AD5273BRJZ10-R7TR-ND - IC DGTL POT 64P 10K OTP SOT23-8AD5273BRJ10-R2CT-ND - IC DGTL POT 10K 64POS SOT23-8AD5273BRJ1-R2CT-ND - IC DGTL POT 1K 64POS SOT23-8AD5273BRJ100-R2CT-ND - IC DGTL POT 100K 64POS SOT23-8AD5273BRJ50-R2CT-ND - IC DGTL POT 50K 64POS SOT23-8

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