ISL95311

Terminal Voltage 0V to 13.2V, 128 Taps I2C Interface

The Intersil ISL95311 is a digitally controlled potentiometer (xDCP). The device consists of a resistor array, wiper switches, a control section, and nonvolatile memory. The wiper position is controlled by an I2C interface. The potentiometer is implemented by a resistor array composed of 127 resistive elements and a wiper switching network. Between each element and at either end are tap points accessible to the wiper terminal. The wiper of the potentiometer has an associated volatile Wiper Counter 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 controls the position of the wiper on the resistor array through the switches. At power-up, the device recalls the contents of the IVR to the corresponding WR.

The device can be used as a three-terminal potentiometer or as a two-terminal variable resistor in a wide variety of applications, including:

• LCD contrast control
• Parameter and bias adjustments
• Industrial and automotive control
• Mechanical pot replacement

ISL95311 产品特性

• Non-volatile solid-state potentiometer
• I2C serial interface
• DCP terminal voltage, 0V to +13.2V
• 128 wiper tap points - 0.8% resolution
  • Wiper position stored in nonvolatile memory and recalled on power-up
• 127 resistive elements
  • Temperature compensated
  • Low wiper resistance 70Ω typical @ 3.3V
• Low power CMOS
  • Standby current, 2uA @ VCC = +3.6V
• High reliability
  • Endurance, 200,000 data changes per bit
  • Register data retention 50 years @ T < 75°C
• RTOTAL values = 10kΩ, 50kΩ
• 10 Ld MSOP package
• Pb-free available (RoHS compliant)

ISL95311 芯片订购指南

芯片型号	产品状态	温度范围	封装尺寸图	潮湿敏感度等级MSL	美元价格US $
ISL95311UIU10Z	量产	工业级	10 Ld MSOP	2	1.69
ISL95311UIU10Z-TK	量产	工业级	10 Ld MSOP T+R	2	1.69
ISL95311WIU10Z	量产	工业级	10 Ld MSOP	2	1.69
ISL95311WIU10Z-TK	量产	工业级	10 Ld MSOP T+R	2	1.69
ISL95311WIP14Z	停产	工业级	10 Ld MSOP	N/A

ISL95311 应用技术支持与电子电路设计开发资源下载

1. ISL95311 数据资料 datatSheet 下载.PDF
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