MAX981CUA+

The MAX981CUA+ is an ultra low power, open drain, single low voltage comparator in 8 pin µMAX package. This single/dual supply micropower device draw less than 4µA supply current over temperature and includes an internal ±2% voltage reference and programmable hysteresis. The MAX981 is ideal for 3V or 5V single supply applications. The input voltage ranges from negative supply rail to within 1.3V of positive supply. It provides unique, simple method for adding hysteresis without feedback or complicated equations by using HYST pin and two resistors. The open drain outputs permit wire ORed configurations. The output voltage range of 11V and separate GND pin for the output transistor makes the device ideal for level translators and bipolar to single ended converter. The MAX981 is used in battery powered systems, threshold detectors, level translators, window comparators and oscillator circuits.

• 2.5V to 11V and ±1.25V to ±5.5V supply voltage, 0 to 11V output voltage range
• Operating temperature range from 0°C to 70°C
• Internal bandgap reference voltage of 1.182V ±2%
• Propagation delay of 12μs (10mV overdrive)
• Internal precision reference of 2%
• Ultra low quiescent current (4µA max) over extended temperature range
• Input offset voltage of ±10mV (VCM = 2.5V, 5V operation)
• Common mode rejection ratio of 0.1mV/V and power supply rejection ratio of 0.1mV/V in 5V operation
• Supply current of 2.5μA at TA = +25°C in 5V operation
• Internal programmable hysteresis
• Battery-Powered Systems; Level Translators; Oscillator Circuits; Threshold Detectors; Window Comparators

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