AD5172
PRODUCTION256-Position, One-Time Programmable, Dual Channel, I2C Digital Potentiometer
- Part Models
- 5
- 1ku List Price
- Starting From $2.16
Part Details
- 2-channel, 256-position potentiometers
- One-time programmable (OTP) set-and-forget resistance setting provides a low cost alternative to EEMEM
- Unlimited adjustments before OTP activation
- OTP overwrite allows dynamic adjustments with user defined preset
- End-to-end resistance: 2.5 kΩ, 10 kΩ, and 100 kΩ
- Compact 10-lead MSOP: 3 mm × 4.9 mm
- Fast settling time: tS = 5 µs typical on power-up
- Full read/write of wiper register
- Power-on preset to midscale
- Extra package address decode pins: AD0 and AD1 (AD5173)
- Single supply: 2.7 V to 5.5 V
- Low temperature coefficient: 35 ppm/°C
- Low power: IDD = 6 µA maximum
- Wide operating temperature: −40°C to +125°C
The AD5172 / AD5173 are dual-channel, 256-position, one-time programmable (OTP) digital potentiometers that employ fuse link technology to achieve memory retention of resistance settings. The digital potentiometer, VR, and RDAC terms are used interchangeably. OTP is a cost-effective alternative to EEMEM for users who do not need to program the digital potentiometer setting in memory more than once. These devices perform the same electronic adjustment function as mechanical potentiometers or variable resistors but with enhanced resolution, solid-state reliability, and superior low temperature coefficient performance.
TheAD5172 / AD5173 are programmed using a 2-wire, I2C-compatible digital interface. Unlimited adjustments are allowed before permanently setting the resistance value. 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 AD5172 / AD5173 have a unique temporary OTP overwrite feature that allows for new adjustments even after a fuse is blown. However, the OTP setting is restored during subsequent power-up conditions. This allows users to treat these digital potentiometers as volatile potentiometers with a programmable preset.
APPLICATIONS
- Systems calibration
- Electronics level setting
- Mechanical trimmers replacement in new designs
- Permanent factory PCB setting
- Transducer adjustment of pressure, temperature, position, chemical, and optical sensors
- RF amplifier biasing
- Gain control and offset adjustment
Documentation
Data Sheet 1
User Guide 1
Application Note 1
Frequently Asked Question 1
Device Drivers 2
Product Selection Guide 1
Analog Dialogue 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 |
|---|---|---|---|
| AD5172BRMZ10 | 10-Lead MSOP | ||
| AD5172BRMZ10-RL7 | 10-Lead MSOP | ||
| AD5172BRMZ100 | 10-Lead MSOP | ||
| AD5172BRMZ100-RL7 | 10-Lead MSOP | ||
| AD5172BRMZ2.5 | 10-Lead MSOP |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Jan 26, 2016 - 15_0176 Assembly Transfer of Select 8/10L MSOP Products to Amkor Philippines |
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| AD5172BRMZ10 | PRODUCTION | |
| AD5172BRMZ10-RL7 | PRODUCTION | |
| AD5172BRMZ100 | PRODUCTION | |
| AD5172BRMZ100-RL7 | PRODUCTION | |
| AD5172BRMZ2.5 | PRODUCTION | |
|
Sep 11, 2013 - 13_0182 AD5172/AD5173 Datasheet Correction |
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| AD5172BRMZ10 | PRODUCTION | |
| AD5172BRMZ10-RL7 | PRODUCTION | |
| AD5172BRMZ100 | PRODUCTION | |
| AD5172BRMZ100-RL7 | PRODUCTION | |
| AD5172BRMZ2.5 | 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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| AD5172BRMZ10 | PRODUCTION | |
| AD5172BRMZ10-RL7 | PRODUCTION | |
| AD5172BRMZ100 | PRODUCTION | |
| AD5172BRMZ100-RL7 | PRODUCTION | |
| AD5172BRMZ2.5 | PRODUCTION | |
|
May 15, 2012 - 10_0006 Halogen Free Material Change for mini SOIC Products |
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| AD5172BRMZ10-RL7 | PRODUCTION | |
| AD5172BRMZ100 | PRODUCTION | |
| AD5172BRMZ100-RL7 | PRODUCTION | |
| AD5172BRMZ2.5 | PRODUCTION | |
|
Feb 11, 2009 - 09_0008 AD5162, AD5170, AD5172, AD5173, AD5243 and AD5248 Datasheet Update |
||
| AD5172BRMZ2.5 | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Software Resources
FPGA/HDL 2
Device Drivers 2
Evaluation Software 1
Can't find the software or driver you need?
Hardware Ecosystem
| Parts | Product Life Cycle | Description |
|---|---|---|
| AD5142A | PRODUCTION | Dual Channel, 256-Position, I2C, Nonvolatile Digital Potentiometer |
Evaluation Kits
AD5172 Evaluation Board