AD5171
PRODUCTION64 Position OTP Digital Potentiometer
- Part Models
- 6
- 1ku List Price
- Starting From $0.96
Overview
- 64 Position
- One-time programmable (OTP) set-and-forget resistance setting
—low cost alternative over EEMEM - 5 kΩ, 10 kΩ, 50 kΩ, 100 kΩ end-to-end resistance
- Low temperature coefficient:
35 ppm/°C in rheostat mode - Compact standard 8-lead SOT-23 package
- See Data Sheet for Additional Information
The AD5171 is a 64-position, one-time programmable (OTP) digital potentiometer that uses fuse link technology to achieve the memory retention of the resistance setting function. OTP is a cost-effective alternative over the EEMEM approach for users who do not need to reprogram new memory settings in the digital potentiometer. This device performs the same electronic adjustment function as most mechanical trimmers and variable resistors. The AD5171 is programmed using a 2-wire, I2C®-compatible digital control. It allows unlimited adjustments before permanently setting the resistance value. During the OTP activation, a permanent fuse blown command is sent after the final value is determined, freezing the wiper position at a given setting (analogous to placing epoxy on a mechanical trimmer).
When this permanent setting is achieved, the value does not change regardless of 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 read mode.
For applications that program the AD5171 in factories, Analog Devices offers device programming software that operates across Windows® 95 to XP platforms, including Windows NT. This software application effectively replaces the need for external I2C controllers or host processors and, therefore, significantly reduces the development time of the users. An AD5171 evaluation kit includes the software, connector, and cable that can be converted for factory programming applications.
The AD5171 is available in a compact 8-lead SOT-23 package. All parts are guaranteed to operate over the automotive temperature range of −40°C to +125°C. Besides its unique OTP feature, the AD5171 lends itself well to other general-purpose digital potentiometer applications due to its temperature performance, small form factor, and low cost.
APPLICATIONS
- System calibrations
- Electronics level settings
- Mechanical trimmers and potentiometer replacements
- Automotive electronics adjustments
- Gain control and offset adjustments
- Transducer circuit adjustments
- Programmable filters up to 1.5 MHz BW
Documentation
Data Sheet 1
Application Note 1
Frequently Asked Question 1
Device Drivers 1
3rd Party Solutions 3
Product Selection Guide 1
Webcast 2
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| AD5171BRJZ10-R2 | 8-Lead SOT-23 | ||
| AD5171BRJZ10-R7 | 8-Lead SOT-23 | ||
| AD5171BRJZ100-R2 | 8-Lead SOT-23 | ||
| AD5171BRJZ100-R7 | 8-Lead SOT-23 | ||
| AD5171BRJZ5-R7 | 8-Lead SOT-23 | ||
| AD5171BRJZ50-R7 | 8-Lead SOT-23 |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Feb 8, 2010 - 04_0080 Qualification of the 8" C6 and Q Wafer Fab Processes at Analog Devices, Limerick, Ireland. |
||
| AD5171BRJZ10-R2 | PRODUCTION | |
| AD5171BRJZ10-R7 | PRODUCTION | |
| AD5171BRJZ100-R2 | PRODUCTION | |
| AD5171BRJZ100-R7 | PRODUCTION | |
| AD5171BRJZ5-R7 | PRODUCTION | |
| AD5171BRJZ50-R7 | PRODUCTION | |
|
Feb 4, 2010 - 10_0009 Halogen Free Material Change for SOT_23 Products |
||
| AD5171BRJZ10-R7 | PRODUCTION | |
| AD5171BRJZ100-R7 | PRODUCTION | |
| AD5171BRJZ5-R7 | PRODUCTION | |
| AD5171BRJZ50-R7 | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Software Resources
Device Drivers 1
Evaluation Software 0
Evaluation Kits
AD5171 Evaluation Board