AD5170
PRODUCTION256-Position, Two-Time Programmable, I2C Compatible Digital Potentiometer
- Part Models
- 5
- 1ku List Price
- Starting From $1.64
Part Details
- 256-position digital potentiometer
- OTP overwrite allows dynamic adjustments with user-defined preset
- End to end resistance: 2.5 kΩ, 10 kΩ, and 50 kΩ
- Compact 10-lead MSOP: 3 mm × 4.9 mm package
- Fast settling time: tS = 5 μs typical in power-up
- Full read/write of wiper register
- Power-on preset to midscale
- See datasheet for additional features
The AD5170 is a 256-position, two-time programmable, digital potentiometer that employs fuse link technology, giving users two opportunities to permanently program the resistance setting. The digital potentiometer, VR, and RDAC terms are used interchangeably. For users who do not need to program the digital potentiometer setting in memory more than once, the OTP feature is a cost-effective alternative to EEMEM. The AD5170 performs the same electronic adjustment function as mechanical potentiometers or variable resistors with enhanced resolution, solid-state reliability, and superior low temperature coefficient performance.
The AD5170 is programmed using a 2-wire, I2C-compatible digital interface. Unlimited adjustments are allowed before permanently setting the resistance value, and there are two opportunities for permanent programming. During OTP activation, a permanent blow fuse command freezes the wiper position (analogous to placing epoxy on a mechanical trimmer).
Unlike traditional OTP digital potentiometers, the AD5170 has a unique temporary OTP overwrite feature that allows for new adjustments even after the fuse is blown. However, the OTP setting is restored during subsequent power-up conditions. This feature allows users to treat these digital potentiometers as volatile potentiometers with a programmable preset.
For applications that program the AD5170 at the factory, Analog Devices, Inc., offers device programming software that runs on Windows NT®, Windows® 2000, and Windows XP operating systems. This software effectively replaces any external I2C controllers, thus enhancing the time-to-market of the user’s systems.
APPLICATIONS
- Systems calibration
- Electronics level setting
- Mechanical trimmers replacement in new designs
- Permanent factory PCB settings
- Transducer adjustment of pressure, temperature, position, chemical, and optical sensors
- RF amplifier biasing
- Gain control and offset adjustments
Documentation
Data Sheet 1
Application Note 1
Frequently Asked Question 1
Device Drivers 1
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 |
|---|---|---|---|
| AD5170BRMZ10 | 10-Lead MSOP | ||
| AD5170BRMZ10-RL7 | 10-Lead MSOP | ||
| AD5170BRMZ2.5 | 10-Lead MSOP | ||
| AD5170BRMZ2.5-RL7 | 10-Lead MSOP | ||
| AD5170BRMZ50 | 10-Lead MSOP |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Jan 26, 2016 - 15_0176 Assembly Transfer of Select 8/10L MSOP Products to Amkor Philippines |
||
| AD5170BRMZ10 | PRODUCTION | |
| AD5170BRMZ10-RL7 | PRODUCTION | |
| AD5170BRMZ2.5 | PRODUCTION | |
| AD5170BRMZ2.5-RL7 | PRODUCTION | |
| AD5170BRMZ50 | PRODUCTION | |
|
May 15, 2012 - 10_0006 Halogen Free Material Change for mini SOIC Products |
||
| AD5170BRMZ10 | PRODUCTION | |
| AD5170BRMZ10-RL7 | PRODUCTION | |
| AD5170BRMZ2.5 | PRODUCTION | |
| AD5170BRMZ50 | PRODUCTION | |
|
Feb 8, 2010 - 04_0080 Qualification of the 8" C6 and Q Wafer Fab Processes at Analog Devices, Limerick, Ireland. |
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| AD5170BRMZ10 | PRODUCTION | |
| AD5170BRMZ10-RL7 | PRODUCTION | |
| AD5170BRMZ2.5 | PRODUCTION | |
| AD5170BRMZ50 | PRODUCTION | |
|
Feb 11, 2009 - 09_0008 AD5162, AD5170, AD5172, AD5173, AD5243 and AD5248 Datasheet Update |
||
| AD5170BRMZ2.5 | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Software Resources
Device Drivers 1
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