Description

The Intersil ICL8211/8212 are micropower bipolar monolithic integrated circuits intended primarily for precise voltage detection and generation. These circuits consist of an accurate voltage reference, a comparator and a pair of output buffer/drivers.

Specifically, the ICL8211 provides a 7mA current limited output sink when the voltage applied to the ‘THRESHOLD’ terminal is less than 1.15V (the internal reference). The ICL8212 requires a voltage in excess of 1.15V to switch its output on (no current limit). Both devices have a low current output (HYSTERESIS) which is switched on for input voltages in excess of 1.15V. The HYSTERESIS output may be used to provide positive and noise free output switching using a simple feedback network.

Features

? High Accuracy Voltage Sensing and Generation

? Internal Reference 1.15V Typical

? Low Sensitivity to Supply Voltage and Temperature Variations

? Wide Supply Voltage Range Typ. 1.8V to 30V

? Essentially Constant Supply Current Over Full Supply Voltage Range

? Easy to Set Hysteresis Voltage Range

? Defined Output Current Limit ICL8211

? High Output Current Capability ICL8212

Applications

? Low Voltage Sensor/Indicator

? High Voltage Sensor/Indicator

? Nonvolatile Out-of-Voltage Range Sensor/Indicator

? Programmable Voltage Reference or Zener Diode

? Series or Shunt Power Supply Regulator

? Fixed Value Constant Current Source

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