AD5280
PRODUCTIONSingle/Dual, +15 V/±5 V, 256-Position, I2C-Compatible Digital Potentiometer
- Part Models
- 6
- 1ku List Price
- Starting From $2.45
Part Details
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The AD5280/AD5282 are single-channel and dual-channel, 256-position, digitally controlled variable resistors (VRs)2. The devices perform the same electronic adjustment function as a potentiometer, trimmer, or variable resistor. Each VR offers a completely programmable value of resistance between the A terminal and the wiper or the B terminal and the wiper. The fixed A-to-B terminal resistance of 20 kΩ, 50 kΩ, or 200 kΩ has a 1% channel-to-channel matching tolerance. The nominal temperature coefficient of both parts is 30 parts per million/ degrees centigrade (ppm/°C). Another key feature is that the parts can operate up to +15 V or ±5 V.
Wiper position programming defaults to midscale at system power-on. When powered, the VR wiper position is programmed by an I2C-compatible, 2-wire serial data interface. The AD5280/ AD5282 feature sleep mode programmability. This allows any level of preset in power-up and is an alternative to a costly EEPROM solution. Both parts have additional programmable logic outputs that enable users to drive digital loads, logic gates, LED drivers, and analog switches in their system.
The AD5280/AD5282 are available in thin, surface-mounted 14-lead TSSOP and 16-lead TSSOP. All parts are guaranteed to operate over the extended industrial temperature range of −40°C to +85°C. For 3-wire SPI-compatible interface applica-tions, see the AD5260/AD5262 product information on www.analog.com.
Applications
- Multimedia, video, and audio
- Communications
- Mechanical potentiometer replacement
- Instrumentation: gain, offset adjustment
- Programmable voltage source
- Programmable current source
- Line impedance matching
1 Assert shutdown and program the device during power-up, then deassert the shutdown to achieve the desired preset level.
2 The terms digital potentiometer, VR, and RDAC are used interchangeably.
Documentation
Data Sheet 1
Application Note 5
Technical Articles 1
Frequently Asked Question 1
Product Selection Guide 1
Device Drivers 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 |
|---|---|---|---|
| AD5280BRUZ20 | 14-Lead TSSOP | ||
| AD5280BRUZ20-REEL7 | 14-Lead TSSOP | ||
| AD5280BRUZ200 | 14-Lead TSSOP | ||
| AD5280BRUZ200-R7 | 14-Lead TSSOP | ||
| AD5280BRUZ50 | 14-Lead TSSOP | ||
| AD5280BRUZ50-REEL7 | 14-Lead TSSOP |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Apr 5, 2021 - 21_0035 Amkor Philippines as an Alternate Site for TSSOP_4.4 |
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| AD5280BRUZ20 | PRODUCTION | |
| AD5280BRUZ20-REEL7 | PRODUCTION | |
| AD5280BRUZ200 | PRODUCTION | |
| AD5280BRUZ200-R7 | PRODUCTION | |
| AD5280BRUZ50 | PRODUCTION | |
| AD5280BRUZ50-REEL7 | PRODUCTION | |
|
Jan 16, 2012 - 11_0244 Halogen Free Material Change for Select TSSOP Products Assembled at Amkor |
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| AD5280BRUZ20 | PRODUCTION | |
| AD5280BRUZ20-REEL7 | PRODUCTION | |
|
Feb 11, 2011 - 10_0005 Halogen Free Material Change for TSSOP Products Assembled at Amkor |
||
| AD5280BRUZ200 | PRODUCTION | |
| AD5280BRUZ200-R7 | PRODUCTION | |
| AD5280BRUZ50 | PRODUCTION | |
| AD5280BRUZ50-REEL7 | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Software Resources
Device Drivers 1
Evaluation Software 0
Can't find the software or driver you need?
Evaluation Kits
AD5282 Evaluation Board