AD5271
PRODUCTION256-Position, 1% Resistor Tolerance Error, SPI Interface and 50-TP Memory Digital Rheostat
- Part Models
- 5
- 1ku List Price
- Starting From $1.16
Part Details
- Single-channel, 1024-/256-position resolution
- 20 kΩ, 50 kΩ and 100 kΩ nominal resistance
- Maximum ±1% nominal resistor tolerance error
- 50-times programmable (50-TP) wiper memory
- Rheostat mode temperature coefficient: 5 ppm/°C
- 2.7 V to 5.5 V single-supply operation
- ±2.5 V to ±2.75 V dual-supply operation for ac or bipolar operations
- SPI-compatible interface
- Wiper setting readback
- Power on refreshed from 50-TP memory
- Thin LFCSP, 10-lead,
3 mm × 3 mm × 0.8 mm package - Compact MSOP, 10-lead,
3 mm × 4.9 mm × 1.1 mm package
The AD5270/AD5271 are single-channel, 1024-/256-position digital rheostats that combine industry leading variable resistor performance with nonvolatile memory (NVM) in a compact package.
The AD5270/AD5271 ensure less than 1% end-to-end resistor tolerance error and offer 50-times programmable (50-TP) memory.
The guaranteed industry leading low resistor tolerance error feature simplifies open-loop applications as well as precision calibration and tolerance matching applications.
The AD5270/AD5271 device wiper settings are controllable through the SPI digital interface. Unlimited adjustments are allowed before programming the resistance value into the 50-TP memory. The AD5270/AD5271 do not require any external voltage supply to facilitate fuse blow and there are 50 opportunities for permanent programming. During 50-TP activation, a permanent blow fuse command freezes the resistance position (analogous to placing epoxy on a mechanical trimmer).
The AD5270/AD5271 are available in a 3 mm × 3 mm, 10-lead LFCSP package and in a 10-lead MSOP package. The parts are guaranteed to operate over the extended industrial temperature range of −40°C to +125°C.
Applications
- Mechanical potentiometer replacements
- Op-amp: variable gain control
- Instrumentation: gain, offset adjustment
- Programmable voltage-to-current conversions
- Programmable filters, delays, time constants
- Programmable power supply
- Sensor calibration
Documentation
Data Sheet 1
User Guide 1
Application Note 2
Frequently Asked Question 1
Product Selection Guide 1
Device Drivers 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 |
|---|---|---|---|
| AD5271BCPZ-20-RL7 | 10-Lead LFCSP (3mm x 3mm) | ||
| AD5271BRMZ-100 | 10-Lead MSOP | ||
| AD5271BRMZ-100-RL7 | 10-Lead MSOP | ||
| AD5271BRMZ-20 | 10-Lead MSOP | ||
| AD5271BRMZ-20-RL7 | 10-Lead MSOP |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Dec 14, 2010 - 10_0354 AD5270 AD5271 Data Sheet Correction to prevent SDO pin malfunction. |
||
| AD5271BCPZ-20-RL7 | PRODUCTION | |
| AD5271BRMZ-100 | PRODUCTION | |
| AD5271BRMZ-100-RL7 | PRODUCTION | |
| AD5271BRMZ-20 | PRODUCTION | |
| AD5271BRMZ-20-RL7 | PRODUCTION | |
|
Jan 26, 2016 - 15_0176 Assembly Transfer of Select 8/10L MSOP Products to Amkor Philippines |
||
| AD5271BRMZ-100 | PRODUCTION | |
| AD5271BRMZ-100-RL7 | PRODUCTION | |
| AD5271BRMZ-20 | PRODUCTION | |
| AD5271BRMZ-20-RL7 | PRODUCTION | |
|
May 15, 2012 - 10_0006 Halogen Free Material Change for mini SOIC Products |
||
| AD5271BRMZ-100 | PRODUCTION | |
| AD5271BRMZ-100-RL7 | PRODUCTION | |
| AD5271BRMZ-20 | PRODUCTION | |
| AD5271BRMZ-20-RL7 | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Software Resources
Device Drivers 1
Evaluation Software 1
Can't find the software or driver you need?
Tools & Simulations
IBIS Model 1
Evaluation Kits
AD5270 Evaluation Board