ANALOG DEVICES 64-Position OTP Digital Potentiometer AD5273
●General Description
■The AD5273 is a 64-position, one-time programmable (OTP) digital potentiometer4 that employs fuse link technology to achieve permanent program setting. This device performs the same electronic adjustment function as most mechanical trimmers and variable resistors. It allows unlimited adjustments before permanently setting the resistance values. The AD5273 is programmed using a 2-wire, I²C-compatible digital control. During write mode, a fuse blow command is executed after the final value is determined, thereby freezing the wiper position at a given setting (analogous to placing epoxy on a mechanical trimmer). When the permanent setting is achieved, the value does not change, regardless of the supply variations or environmental stresses under normal operating conditions. To verify the success of permanent programming, Analog Devices, Inc., patterned the OTP validation such that the fuse status can be discerned from two validation bits in the read mode. FUNCTIONAL BLOCK DIAGRAM Figure 1.
■In addition, for applications that program the AD5273 at the factory, Analog Devices offers device programming software2 running on Windows NT®, Windows® 2000, and Windows XP operating systems. This software application effectively replaces any external I2
C controllers, which in turn enhances the user system's time-to-market.
■The AD5273 is available in 1 kΩ, 10 kΩ, 50 kΩ, and 100 kΩ resistances and in a compact 8-lead SOT-23 standard package. It operates from −40°C to +105°C.
■Along with 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 factory programming applications.
■For applications that require dynamic adjustment of resistance settings with nonvolatile EEMEM, refer to the AD5231, AD5232, AD5233, and AD5235 family, and the AD5251, AD5252, AD5254, AD5258, and AD5259 family of nonvolatile memory digital potentiometers.
|
AD5273 、 AD5273BRJZ1-R2 、 AD5273BRJZ1-REEL7 、 AD5273BRJZ10-R2 、 AD5273BRJZ10-R7 、 AD5273BRJZ50-REEL7 、 AD5273BRJZ100-R2 、 AD5273BRJZ100-R7 、 EVAL-AD5273DBZ |
|
|
OTP Digital Potentiometer 、 one-time programmable (OTP) digital potentiometer |
|
|
[ Mechanical potentiometers ][ trimmer ][ Transducer circuit adjustments ][ Programmable filters ] |
|
|
Datasheet |
|
|
|
|
Please see the document for details |
|
|
|
|
|
|
|
|
SOT-23 |
|
|
English Chinese Chinese and English Japanese |
|
|
02/23/2017 |
|
|
Rev. J |
|
|
D03224-0-6/15(J) |
|
|
1.3 MB |
- +1 Like
- Add to Favorites
Recommend
All reproduced articles on this site are for the purpose of conveying more information and clearly indicate the source. If media or individuals who do not want to be reproduced can contact us, which will be deleted.
Integrated Circuits
Discrete Components
Connectors & Structural Components
Assembly UnitModules & Accessories
Power Supplies & Power Modules
Electronic Materials
Instrumentation & Test Kit
Electrical Tools & Materials
Mechatronics
Processing & Customization
