特性
- Solid-State Non-Volatile Potentiometer
- Push Button Controlled
- Single or Auto Increment/Decrement
- Fast Mode after 1s Button Press
- AUTOSTORE of Last Wiper Position or Manual Store of Wiper Position
- Shutdown Mode
- 16 Wiper Tap Points
- Middle Scale Wiper Position on Power-Up
- Low Power CMOS
- VCC = 2.7V to 5.5V
- Terminal Voltage, 0 to VCC
- Standby Current, 3µA max
- RTOTAL Value = 10kΩ
- High Reliability
- Endurance: 1,000,000 data changes per bit per register
- Register data retention: 50 years @ T ≤ +55°C
- Packages
- 8 Ld SOIC
- 10 Ld µTQFN (2.1mmx1.6mm)
- Pb-Free (RoHS Compliant)
描述
Support is limited to customers who have already adopted these products.
The Intersil ISL22512 is a three-terminal digitally-controlled potentiometer (XDCP) implemented by a resistor array composed of 15 resistive elements and a wiper switching network. The ISL22512 features a push button control, a shutdown mode, as well as an industry-leading µTQFN package. The push button control has individual PU and PD inputs for adjusting the wiper. To eliminate redundancy, the wiper position will automatically increment or decrement if one of these inputs is held longer than one second. Forcing both PU and PD low for more than two seconds activates shutdown mode. Shutdown mode disconnects the top of the resistor chain and moves the wiper to the lowest position, minimizing power consumption. The three terminals accessing the resistor chain naturally configure the ISL22512 as a voltage divider. A rheostat is easily formed by floating an end terminal or connecting it to the wiper.
应用
- Volume Control
- LED/LCD Brightness Control
- Contrast Control
- Programming Bias Voltages
- Ladder Networks
| Part Number | Status | Samples | Stock | Package | Lead Count (#) | Carrier Type | Pitch (mm) | Pkg. Dimensions (mm) | Pb (Lead) Free | Temp. Range (°C) |
|---|---|---|---|---|---|---|---|---|---|---|
| ISL22512WFB8Z | Obsolete | N/A | Out of Stock | SOIC | 8# | Tube | 1.3mm | 4.9 x 3.9 x 0.00 | No | -40 to +125°C |
| ISL22512WFB8Z-TK | Obsolete | N/A | Out of Stock | SOIC | 8# | Reel | 1.3mm | 4.9 x 3.9 x 0.00 | No | -40 to +125°C |
| ISL22512WFRU10Z-TK | Obsolete | N/A | Out of Stock | uTQFN | 10# | Reel | 0.5mm | 2.1 x 1.6 x 0.00 | No | -40 to +125°C |
- EOL 通告英语PDF 200 KB PLC15033 2015年6月11日
- 产品变更通告英语PDF 152 KB PCN12085 2012年11月07日
- 应用说明英语PDF 281 KB an1425 2008年5月22日AI 生成的摘要: 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.
- 应用说明英语PDF 251 KB an1699 2004年1月19日AI 生成的摘要: 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.
- 应用说明英语PDF 503 KB an9675 1999年8月13日AI 生成的摘要: 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.
- 应用说明英语PDF 287 KB an9705 1997年2月21日AI 生成的摘要: 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.
推荐文档 (1)
数据手册 (1)
手册和指南 (1)
- 应用说明英语PDF 281 KB an1425 2008年5月22日AI 生成的摘要: 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.
- 应用说明英语PDF 251 KB an1699 2004年1月19日AI 生成的摘要: 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.
- 应用说明英语PDF 503 KB an9675 1999年8月13日AI 生成的摘要: 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.
- 应用说明英语PDF 287 KB an9705 1997年2月21日AI 生成的摘要: 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.
应用说明和白皮书 (4)
- EOL 通告英语PDF 200 KB PLC15033 2015年6月11日
- 产品变更通告英语PDF 152 KB PCN12085 2012年11月07日
产品通告(产品变更、EOL 等) (3)
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