Features: 64 positions
OTP (one-time programmable)1 set-and-forget resistance
setting-low cost alternative over EEMEM
Unlimited adjustments prior to OTP activation
5 kΩ, 10 kΩ, 50 kΩ, 100 kΩ end-to-end resistance
Low tempco 5 ppm/oC in potentiometer mode
Low tempco 35 ppm/°C in rheostat mode
Compact standard SOT-23-8 package
Low power, IDD = 8 µA max
Fast settling time, ts = 5 µs typ in power-up
I2C compatible digital interface
Computer software replaces µc in factory programming ApplicationSystems calibrations
Electronics level settings
Mechanical potentiometers and trimmers® replacements
Automotive electronics adjustments
Gain control and offset adjustments
Transducer circuits adjustments
Programmable filters up to 1.5 MHz BW Pinout
Specifications
| # Channels |
1 |
| # Positions |
64 |
| Memory Type |
One Time Programmable |
| Interface |
I2C |
| Resistor Values (kOhms) |
5, 10, 50, 100 |
| Voltage Range (V) |
+5.5V |
| Supply Current |
4A |
| Temp. Range -40 °C to.. |
125Deg |
| Absolute Tempco (ppm/°C) |
35ppm/C |
| Package |
SOT-23 |
VDD to GND0.3, +7 V
VA, VB, VW to GND GND, VDD
Digital Inputs and Output Voltage to GND 0 V, VDD
Operating Temperature Range 40°C to +125°C
Maximum Junction Temperature (TJ max) 150°C
Storage Temperature 65°C to +150°C
Lead Temperature (Soldering, 10 sec) 300°C
Vapor Phase (60 sec) 215°C
Infrared (15 sec) 220°C
Thermal Resistance2JA 230°C/W DescriptionThe AD5171 is a 64-position, one-time programmable (OTP) digital potentiometer2 , which employs fuse link technology toachieve the memory retention of resistance setting function. OTP is a cost-effective alternative over the EEMEM approach for users who do not need to reprogram new memory setting in the digital potentiometer. This device performs the same electronic adjustment function like most mechanical trimmers and variable resistors do. The AD5171 is programmed using a 2-wire I
2C compatible digital control. It allows unlimited adjustments before permanently setting the resistance value.
For applications that program AD5171 in the factories, Analog Devices offers a device programming software, which operates across Windows® 95 to XP® platforms including Windows NT®. This software application effectively replaces the need for external I
2C controllers or host processors and therefore
significantly reduces users' development time. An AD5171 evaluation kit is available, which includes the software, connector, and cable that can be converted for the factory programming applications.
AD5171 Data Sheet
