AD5270

PRODUCTION

1024-Position, 1% Resistor Tolerance Error, SPI Interface and 50-TP Memory Digital Rheostat

Data Sheet (Rev. H) Product Selection Table

Part Models: 8
1ku List Price: Starting From $1.93

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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

Part Models: 8
1ku List Price: Starting From $1.93

Documentation

Frequently Asked Question 1

FAQ 12/07/2014

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
AD5270BCPZ-100-RL7	10-Lead LFCSP (3mm x 3mm)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
AD5270BCPZ-20-RL7	10-Lead LFCSP (3mm x 3mm)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
AD5270BRMZ-100	10-Lead MSOP	Material Declaration Reliablity Data	Ultra Librarian SamacSys
AD5270BRMZ-100-RL7	10-Lead MSOP	Material Declaration Reliablity Data	Ultra Librarian SamacSys
AD5270BRMZ-20	10-Lead MSOP	Material Declaration Reliablity Data	Ultra Librarian SamacSys
AD5270BRMZ-20-RL7	10-Lead MSOP	Material Declaration Reliablity Data	Ultra Librarian SamacSys
AD5270BRMZ-50	10-Lead MSOP	Material Declaration Reliablity Data	Ultra Librarian SamacSys
AD5270BRMZ-50-RL7	10-Lead MSOP	Material Declaration Reliablity Data	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

Dec 14, 2010 - 10_0354 AD5270 AD5271 Data Sheet Correction to prevent SDO pin malfunction.
		PCN10_0354_Form Material_Report
AD5270BCPZ-100-RL7	PRODUCTION
AD5270BCPZ-20-RL7	PRODUCTION
AD5270BRMZ-100	PRODUCTION
AD5270BRMZ-100-RL7	PRODUCTION
AD5270BRMZ-20	PRODUCTION
AD5270BRMZ-20-RL7	PRODUCTION
AD5270BRMZ-50	PRODUCTION
AD5270BRMZ-50-RL7	PRODUCTION
Mar 22, 2021 - 21_0001 Addition of Amkor Philippines as an Alternate Site for Singulated MSOP and MSOP_EP
		PCN21_0001_Form Material_Report Other Qualification Results Summary
AD5270BRMZ-100	PRODUCTION
AD5270BRMZ-100-RL7	PRODUCTION
AD5270BRMZ-20	PRODUCTION
AD5270BRMZ-20-RL7	PRODUCTION
AD5270BRMZ-50	PRODUCTION
AD5270BRMZ-50-RL7	PRODUCTION
Oct 30, 2017 - 15_0176 Assembly Transfer of Select 8/10L MSOP Products to Amkor Philippines
		PCN15_0176_Form Material_Report Detailed Change Description Qualification Results Summary Qualification Results Summary
AD5270BRMZ-100	PRODUCTION
AD5270BRMZ-100-RL7	PRODUCTION
AD5270BRMZ-20	PRODUCTION
AD5270BRMZ-20-RL7	PRODUCTION
AD5270BRMZ-50	PRODUCTION
AD5270BRMZ-50-RL7	PRODUCTION
May 15, 2012 - 10_0006 Halogen Free Material Change for mini SOIC Products
		PCN10_0006_Form Material_Report Qualification Report Summary Qualification Report Summary
AD5270BRMZ-100	PRODUCTION
AD5270BRMZ-100-RL7	PRODUCTION
AD5270BRMZ-20	PRODUCTION
AD5270BRMZ-20-RL7	PRODUCTION
AD5270BRMZ-50	PRODUCTION
AD5270BRMZ-50-RL7	PRODUCTION

This is the most up-to-date revision of the Data Sheet.

Software Resources

Device Drivers 2

Can't find the software or driver you need?

Tools & Simulations

IBIS Model 1

AD527x IBIS Model

Evaluation Kits

AD5270 Evaluation Board

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Features and Benefits

Full-featured evaluation board for the AD5270
4-wire ohm measurement capability
Various link options
PC control via a separately purchased system demonstration platform (SDP)
PC software for control
50-times programmable (50-TP)
1% resistance tolerance error

Product Details

The AD5270 is a single-channel, 1024-position digital rheostat with less than ±1% end-to-end resistor tolerance error and 50-time programmable memory.

The AD5270 supports a dual-supply ±2.5 V to ±2.75 V operation and a single-supply 2.7 V to 5.5 V operation, making it suited for battery-powered applications and many other applications.

The AD5270 uses a versatile 3-wire serial interface that operates at clock rates up to 50 MHz, and it is compatible with standard SPI, QSPI™, MICROWIRE™, and DSP interface standards.

The EVAL-AD5270SDZ evaluation board can operate in single-supply and dual-supply mode and incorporates an internal power supply from the USB.

Complete specifications for the AD5270 can be found in the UG-094 datasheet.

Resources

Digital Potentiometer GitHub Linux Driver Source Code

BeMicro FPGA Project for AD5270 with Nios driver

UG-094: Evaluation Board for 10-Bit, Serial Input, High Precision Digital Rheostats
432 kB

Software

AD5270/AD5272 Evaluation Software (Rev.B)
400.11 M

Arduino Compatible Electrochemical Gas Detection Circuit (CN0357)

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Features and Benefits

Form Factor Compatible with Arduino
Programmable for multiple other gases
Resolution down to 1ppm
Low power, single supply operation

Product Details

CN0357 single-supply, low noise, portable gas detector circuit using an electrochemical sensor. The Alphasense CO-AX carbon monoxide sensor is used in this example. Electrochemical sensors offer several advantages for instruments that detect or measure the concentration of many toxic gases. Most sensors are gas specific and have usable resolutions under one part per million (ppm) of gas concentration.