MAXIM MAX965ESA+T

The MAX965–MAX970 single/dual/quad micropower comparators feature rail-to-rail inputs and outputs, and fully specified single-supply operation down to +1.6V. These devices draw less than 5μA per comparator and have open-drain outputs that can be pulled beyond Vcc to 6V (max) above ground. In addition, their rail-to-rail input common-mode voltage range makes these comparators suitable for ultra-low-voltage operation. A +1.6V to +5.5V single-supply operating voltage range makes the MAX965 family of comparators ideal for 2-cell battery-powered applications. The MAX965/MAX967/ MAX968/MAX969 offer programmable hysteresis and an internal 1.235V±1.5% reference. All devices are available in either space-saving 8-pin μMAX or 16-pin QSOP packages.

The MAX965–MAX970 single/dual/quad, micropower, ultra-low-voltage comparators feature rail-to-rail inputs and outputs and an internal 1.235V ±1.5% bandgap reference. These devices operate from a single +1.6V to +5.5V supply voltage range, and consume less than 5μA supply current per comparator over the extended temperature range. Internal hysteresis is programmable up to ±50mV using two external resistors and the device’s internal reference. The rail-to-rail input common-mode voltage range and the open-drain outputs allow easy voltage-level conversion for multivoltage systems. All inputs and outputs can tolerate a continuous short-circuit fault condition to either rail. The MAX965 is a single comparator with adjustable hysteresis and a reference output pin. The MAX966 is a dual comparator without the reference and without adjustable hysteresis. The MAX967 is a dual comparator configured as a dual voltage monitor with common hysteresis adjustment and a reference output. The dual MAX968 is similar to the MAX967, but is configured as a window comparator. The MAX969 is a quad comparator with a common hysteresis adjustment and a reference output pin. The MAX970 is a quad comparator without a reference and without hysteresis adjustment.

• Ultra-Low Single-Supply Operation down to +1.6V
• Rail-to-Rail Common-Mode Input Voltage Range
• 3μA Quiescent Supply Current per Comparator
• Open-Drain Outputs Swing Beyond VCC
• 1.235V±1.5% Precision Internal Reference (MAX965/967/968/969)
• 10µs Propagation Delay (50mV overdrive)
• Available in Space-Saving Packages:
  • 8-Pin μMAX (MAX965–MAX968)
  • 16-Pin QSOP (MAX969/MAX970)

• 2-Cell Battery-Powered/Portable Systems
• Window Comparators
• Threshold Detectors/Discriminators
• Mobile Communications
• Voltage-Level Translation
• Ground/Supply-Sensing Applications