Features
- 256 resistor taps
- I2C serial interface
- Two address pins, up to four devices per bus
- Non-volatile EEPROM storage of wiper position
- 14 General Purpose non-volatile registers
- High reliability
- Endurance: 1,000,000 data changes per bit per register
- Register data retention: 50 years at T ≤ +55 °C
- Wiper resistance: 70Ω typical at 1mA
- Standby current <2.5µA max
- Shutdown current <2.5µA max
- Dual power supply
- VCC = 2.25V to 5.5V
- V- = -2.25V to -5.5V
- DCP terminal voltage from V- to VCC
- 10kΩ or 50kΩ total resistance
- Extended industrial temperature range: -40 °C to +125 °C
- 10 Lead MSOP
- Pb-free plus anneal product (RoHS compliant)
ISL22313 Functional Diagram
Description
Support is limited to customers who have already adopted these products.
The ISL22313 integrates a single digitally controlled potentiometer (DCP), control logic and non-volatile memory on a monolithic CMOS integrated circuit. The digitally controlled potentiometer is 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. The potentiometer has an associated volatile Wiper Register (WR) and a non-volatile Initial Value Register (IVR) that can be directly written to and read by the user. The contents of the WR control the position of the wiper. At power up the device recalls the contents of the DCP's IVR to the WR. The ISL22313 also has 14 general purpose non-volatile registers that can be used as storage of lookup table for multiple wiper position or any other valuable information. The ISL22313 features a dual supply, that is beneficial for applications requiring a bipolar range for DCP terminals between V- and VCC. The DCP can be used as a three-terminal potentiometer or as a 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 | Resistance Options (kΩ) | Pb (Lead) Free | Temp. Range (°C) |
|---|---|---|---|---|---|---|---|---|---|
| ISL22313TFU10Z | Obsolete | N/A | Out of Stock | MSOP | 10# | Tube | 50kΩ | No | -40 to +125°C |
| ISL22313UFU10Z | Obsolete | N/A | Out of Stock | MSOP | 10# | Tube | 50kΩ | No | -40 to +125°C |
| ISL22313UFU10Z-TK | Obsolete | N/A | Out of Stock | MSOP | 10# | Reel | 50kΩ | No | -40 to +125°C |
| ISL22313WFU10Z | Obsolete | N/A | Out of Stock | MSOP | 10# | Tube | 10kΩ | No | -40 to +125°C |
| ISL22313WFU10Z-TK | Obsolete | N/A | Out of Stock | MSOP | 10# | Reel | 10kΩ | No | -40 to +125°C |
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- Manual - Development ToolsPDF 2.16 MB AN1555 Sep 17, 2025
- End Of Life NoticePDF 226 KB PLC16037 Apr 12, 2016
- Product Change NoticePDF 117 KB PCN11059 Jun 17, 2011
- 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 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 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.
Application Notes & White Papers (4)
- End Of Life NoticePDF 226 KB PLC16037 Apr 12, 2016
- Product Change NoticePDF 117 KB PCN11059 Jun 17, 2011
Product Notices (PCN, EOL, etc) (3)
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