Features
- 256 resistor taps - 0.4% resolution
- I2C serial interface with write/read capability
- Power-on preset to mid-scale (128 tap position)
- Wiper resistance: 70Ω typical @ 3.3V
- Standby current 5µA max
- Power supply: 2.7V to 5.5V
- 50kΩ, 10kΩ total resistance
- 8 Ld MSOP
- Pb-free plus anneal available (RoHS compliant)
ISL90810 Functional Diagram
Description
Support is limited to customers who have already adopted these products.
The ISL90810 integrates a digitally controlled potentiometer (XDCP) on a monolithic CMOS integrated circuit. The digitally controlled potentiometers are implemented with a combination of resistor elements and CMOS switches. The position of the wipers are controlled by the user through the I2C bus interface. Each potentiometer has an associated Wiper Register (WR) that can be directly written to and read by the user. The contents of the WR controls the position of the wiper. When powered on the ISL90810's wiper will always commence at mid-scale (128 tap position). The DCP can be used as three-terminal potentiometer or as two-terminal variable resistor in a wide variety of applications including control, parameter adjustments, and signal processing.
| Part Number | Status | Samples | Stock | Package | Lead Count (#) | Carrier Type | Pb (Lead) Free | Temp. Range (°C) |
|---|---|---|---|---|---|---|---|---|
| ISL90810UAU8Z | Obsolete | N/A | In Stock | MSOP | 8# | Tube | No | -40 to +105°C |
| ISL90810UAU8Z-TK | Obsolete | N/A | Out of Stock | MSOP | 8# | Reel | No | -40 to +105°C |
| ISL90810UIU8Z | Obsolete | N/A | In Stock | MSOP | 8# | Tube | No | -40 to +85°C |
| ISL90810UIU8Z-TK | Obsolete | N/A | Out of Stock | MSOP | 8# | Reel | No | -40 to +85°C |
Loading
Filters
Applied Filters
Log in required to subscribe
- Manual - Development ToolsPDF 2.16 MB AN1555 Sep 17, 2025
- End Of Life NoticePDF 292 KB PLC17007 Feb 15, 2017
- Application NotePDF 281 KB an1425 May 22, 2008AI-generated Summary: Digitally Controlled Potentiometers (DCPs) offer precise resistance control with configurations in both serial and parallel modes, featuring fixed resistors and various resistance options. The ISL22317 model provides 1% precision with 128 taps and can function as a two-terminal variable resistor or three-terminal potentiometer, delivering high accuracy and low temperature coefficient. DCPs can outperform DACs in fine tuning within limited ranges, offering better resolution with fewer bits. Resolution varies with voltage and tap count, as detailed in the provided tables. Usage guidelines and liability disclaimers emphasize proper application and safety considerations.
- Application NotePDF 534 KB an133 Jun 06, 2005AI-generated Summary: The document explains how digitally controlled potentiometers (XDCPs) enable programmability in amplifier circuits by adjusting cutoff frequency and gain. It details the design of a non-inverting amplifier with variable resistors forming an RC low pass filter and gain control. Techniques to reduce potentiometer resistance for high-frequency applications are described, allowing gain from 1 to 2 and cutoff frequency from 130kHz to over 1MHz. The amplifier’s parameters are controlled via a serial bus, enabling computer-based customization.
- Application NotePDF 280 KB an1157 Apr 29, 2005AI-generated Summary: Digitally controlled potentiometers (XDCPs) enable precise power supply and DC to DC converter control by allowing cascading configurations for fine and coarse voltage adjustments. These devices store wiper settings in nonvolatile memory, ensuring long-term reliability and simplifying manufacturing and testing. XDCPs improve repeatability, reduce human error, and enhance resistance to environmental stress, making them superior to mechanical potentiometers in power applications.
- Application NotePDF 251 KB an1699 Jan 19, 2004AI-generated Summary: This document outlines important legal disclaimers and usage guidelines for semiconductor products. It emphasizes user responsibility for product design, disclaims liability for damages, and prohibits unauthorized modifications or reverse engineering. Products are categorized by quality grades with specific application recommendations. Users must comply with safety, environmental, and export regulations. Renesas disclaims warranties and liability for improper use or noncompliance. Contact information for global sales offices is provided.
- Application NotePDF 503 KB an9675 Aug 13, 1999AI-generated Summary: Effective Number of Bits (ENOB) depends critically on precise coherence in A/D sampling, with small frequency shifts significantly impacting accuracy. Unwrapping reconstructs coherently sampled sine waves, while windowing controls spectral leakage by shaping the acquisition window. Resampling and interpolation adjust sample sets to avoid leakage in FFT analysis. Different window functions balance side lobe levels and bandwidth, affecting spectral resolution and leakage reduction.
- Application NotePDF 287 KB an9705 Feb 21, 1997AI-generated Summary: Coherent sampling requires the ratio of signal frequency to sampling frequency to be a rational number, expressed as ko/N. When this condition is not met, frequency smearing occurs across bins. Data Acquisition Systems (DAS) can mitigate this by windowing, fixing sampling frequency and tuning input frequency, or fixing input frequency and tuning sampling frequency. The latter two methods are practical for most systems. Pseudo-code illustrates the frequency response for non-integer ko values.
Recommended Documents (1)
Datasheets (1)
- Manual - Development ToolsPDF 2.16 MB AN1555 Sep 17, 2025
Manuals & Guides (1)
- Application NotePDF 281 KB an1425 May 22, 2008AI-generated Summary: Digitally Controlled Potentiometers (DCPs) offer precise resistance control with configurations in both serial and parallel modes, featuring fixed resistors and various resistance options. The ISL22317 model provides 1% precision with 128 taps and can function as a two-terminal variable resistor or three-terminal potentiometer, delivering high accuracy and low temperature coefficient. DCPs can outperform DACs in fine tuning within limited ranges, offering better resolution with fewer bits. Resolution varies with voltage and tap count, as detailed in the provided tables. Usage guidelines and liability disclaimers emphasize proper application and safety considerations.
- Application NotePDF 534 KB an133 Jun 06, 2005AI-generated Summary: The document explains how digitally controlled potentiometers (XDCPs) enable programmability in amplifier circuits by adjusting cutoff frequency and gain. It details the design of a non-inverting amplifier with variable resistors forming an RC low pass filter and gain control. Techniques to reduce potentiometer resistance for high-frequency applications are described, allowing gain from 1 to 2 and cutoff frequency from 130kHz to over 1MHz. The amplifier’s parameters are controlled via a serial bus, enabling computer-based customization.
- Application NotePDF 280 KB an1157 Apr 29, 2005AI-generated Summary: Digitally controlled potentiometers (XDCPs) enable precise power supply and DC to DC converter control by allowing cascading configurations for fine and coarse voltage adjustments. These devices store wiper settings in nonvolatile memory, ensuring long-term reliability and simplifying manufacturing and testing. XDCPs improve repeatability, reduce human error, and enhance resistance to environmental stress, making them superior to mechanical potentiometers in power applications.
- Application NotePDF 251 KB an1699 Jan 19, 2004AI-generated Summary: This document outlines important legal disclaimers and usage guidelines for semiconductor products. It emphasizes user responsibility for product design, disclaims liability for damages, and prohibits unauthorized modifications or reverse engineering. Products are categorized by quality grades with specific application recommendations. Users must comply with safety, environmental, and export regulations. Renesas disclaims warranties and liability for improper use or noncompliance. Contact information for global sales offices is provided.
- Application NotePDF 503 KB an9675 Aug 13, 1999AI-generated Summary: Effective Number of Bits (ENOB) depends critically on precise coherence in A/D sampling, with small frequency shifts significantly impacting accuracy. Unwrapping reconstructs coherently sampled sine waves, while windowing controls spectral leakage by shaping the acquisition window. Resampling and interpolation adjust sample sets to avoid leakage in FFT analysis. Different window functions balance side lobe levels and bandwidth, affecting spectral resolution and leakage reduction.View More (6)
Application Notes & White Papers (6)
- End Of Life NoticePDF 292 KB PLC17007 Feb 15, 2017
Product Notices (PCN, EOL, etc) (2)
No Results Found.
Check Spelling
Make sure all keywords are spelled correctly.
Make sure all keywords are spelled correctly.
Adjust Keywords
Try fewer, different, or more general terms to vary your search.
Try fewer, different, or more general terms to vary your search.
Review Filters
If you have filters applied, consider deselecting some to broaden your results.
If you have filters applied, consider deselecting some to broaden your results.
Need help?
- Search our extensive knowledgebase, designed to help customers with their FAQs.
- Get help from our expert Renesas technical staff and community on our support forums.
No Results Found.
Check Spelling
Make sure all keywords are spelled correctly.
Make sure all keywords are spelled correctly.
Adjust Keywords
Try fewer, different, or more general terms to vary your search.
Try fewer, different, or more general terms to vary your search.
Review Filters
If you have filters applied, consider deselecting some to broaden your results.
If you have filters applied, consider deselecting some to broaden your results.
Need help?
- Search our extensive knowledgebase, designed to help customers with their FAQs.
- Get help from our expert Renesas technical staff and community on our support forums.
No Results Found.
Check Spelling
Make sure all keywords are spelled correctly.
Make sure all keywords are spelled correctly.
Adjust Keywords
Try fewer, different, or more general terms to vary your search.
Try fewer, different, or more general terms to vary your search.
Review Filters
If you have filters applied, consider deselecting some to broaden your results.
If you have filters applied, consider deselecting some to broaden your results.
Need help?
- Search our extensive knowledgebase, designed to help customers with their FAQs.
- Get help from our expert Renesas technical staff and community on our support forums.
No Results Found.
Check Spelling
Make sure all keywords are spelled correctly.
Make sure all keywords are spelled correctly.
Adjust Keywords
Try fewer, different, or more general terms to vary your search.
Try fewer, different, or more general terms to vary your search.
Review Filters
If you have filters applied, consider deselecting some to broaden your results.
If you have filters applied, consider deselecting some to broaden your results.
Need help?
- Search our extensive knowledgebase, designed to help customers with their FAQs.
- Get help from our expert Renesas technical staff and community on our support forums.
No Results Found.
Check Spelling
Make sure all keywords are spelled correctly.
Make sure all keywords are spelled correctly.
Adjust Keywords
Try fewer, different, or more general terms to vary your search.
Try fewer, different, or more general terms to vary your search.
Review Filters
If you have filters applied, consider deselecting some to broaden your results.
If you have filters applied, consider deselecting some to broaden your results.
Need help?
- Search our extensive knowledgebase, designed to help customers with their FAQs.
- Get help from our expert Renesas technical staff and community on our support forums.
No Results Found.
Check Spelling
Make sure all keywords are spelled correctly.
Make sure all keywords are spelled correctly.
Adjust Keywords
Try fewer, different, or more general terms to vary your search.
Try fewer, different, or more general terms to vary your search.
Review Filters
If you have filters applied, consider deselecting some to broaden your results.
If you have filters applied, consider deselecting some to broaden your results.
Need help?
- Search our extensive knowledgebase, designed to help customers with their FAQs.
- Get help from our expert Renesas technical staff and community on our support forums.
Marketing Collateral (1)
Other (1)
No Results Found.
Check Spelling
Make sure all keywords are spelled correctly.
Make sure all keywords are spelled correctly.
Adjust Keywords
Try fewer, different, or more general terms to vary your search.
Try fewer, different, or more general terms to vary your search.
Review Filters
If you have filters applied, consider deselecting some to broaden your results.
If you have filters applied, consider deselecting some to broaden your results.
Need help?
- Search our extensive knowledgebase, designed to help customers with their FAQs.
- Get help from our expert Renesas technical staff and community on our support forums.
No Results Found.
Check Spelling
Make sure all keywords are spelled correctly.
Make sure all keywords are spelled correctly.
Adjust Keywords
Try fewer, different, or more general terms to vary your search.
Try fewer, different, or more general terms to vary your search.
Review Filters
If you have filters applied, consider deselecting some to broaden your results.
If you have filters applied, consider deselecting some to broaden your results.
Need help?
- Search our extensive knowledgebase, designed to help customers with their FAQs.
- Get help from our expert Renesas technical staff and community on our support forums.
Loading
Filters
Applied Filters
Software & Tools
Filter by Type
Filter by Provider
Sample Code
Filter by Application
Filter by Function
Filter by Compiler
Filter by IDE
Simulation Models
Partner Solutions
No Results Found.
Check Spelling
Make sure all keywords are spelled correctly.
Make sure all keywords are spelled correctly.
Adjust Keywords
Try fewer, different, or more general terms to vary your search.
Try fewer, different, or more general terms to vary your search.
Review Filters
If you have filters applied, consider deselecting some to broaden your results.
If you have filters applied, consider deselecting some to broaden your results.
Need help?
- Search our extensive knowledgebase, designed to help customers with their FAQs.
- Get help from our expert Renesas technical staff and community on our support forums.
Software & Tools (1)
No Results Found.
Check Spelling
Make sure all keywords are spelled correctly.
Make sure all keywords are spelled correctly.
Adjust Keywords
Try fewer, different, or more general terms to vary your search.
Try fewer, different, or more general terms to vary your search.
Review Filters
If you have filters applied, consider deselecting some to broaden your results.
If you have filters applied, consider deselecting some to broaden your results.
Need help?
- Search our extensive knowledgebase, designed to help customers with their FAQs.
- Get help from our expert Renesas technical staff and community on our support forums.
No Results Found.
Check Spelling
Make sure all keywords are spelled correctly.
Make sure all keywords are spelled correctly.
Adjust Keywords
Try fewer, different, or more general terms to vary your search.
Try fewer, different, or more general terms to vary your search.
Review Filters
If you have filters applied, consider deselecting some to broaden your results.
If you have filters applied, consider deselecting some to broaden your results.
Need help?
- Search our extensive knowledgebase, designed to help customers with their FAQs.
- Get help from our expert Renesas technical staff and community on our support forums.
No Results Found.
Check Spelling
Make sure all keywords are spelled correctly.
Make sure all keywords are spelled correctly.
Adjust Keywords
Try fewer, different, or more general terms to vary your search.
Try fewer, different, or more general terms to vary your search.
Review Filters
If you have filters applied, consider deselecting some to broaden your results.
If you have filters applied, consider deselecting some to broaden your results.
Need help?
- Search our extensive knowledgebase, designed to help customers with their FAQs.
- Get help from our expert Renesas technical staff and community on our support forums.
Support Communities
Get quick technical support online from Renesas Engineering Community technical staff.
Knowledge Base
Browse our knowledge base for helpful articles, FAQs, and other useful resources.
