25ns, Dual/Quad/Single, Low-Power, TTL Comparators

The MAX9107/MAX9108/MAX9109 dual/quad/single, high-speed, low-power voltage comparators are designed for use in systems powered from a single +5V supply. Their 25ns propagation delay (with 10mV input overdrive) is achieved with a power consumption of only 1.75mW per comparator. The wide input common- mode range extends from 200mV below ground to within 1.5V of the positive supply rail.

The MAX9107/MAX9108/MAX9109 outputs are TTL-compatible, requiring no external pullup circuitry. These easy-to-use comparators incorporate internal hysteresis to ensure clean output switching even when the devices are driven by a slow-moving input signal.

The MAX9107/MAX9108/MAX9109 are higher-speed, lower-power, lower-cost upgrades to industry-standard comparators MAX907/MAX908/MAX909. The MAX9109 features an output latch but does not have complementary outputs.

The dual MAX9107 is available in both 8-pin SO and SOT23 packages. The quad MAX9108 is available in 14-pin TSSOP and SO packages while the single MAX9109 is available in an ultra-small 6-pin SC70 package, a space-saving 6-pin SOT23 package and an 8-pin SO package.

Applications

* A/D Converters * Battery-Powered Applications * Line Receivers * Sampling Circuits * Threshold Detectors/Discriminators * Zero-Crossing Detectors

* 25ns Propagation Delay

* 350µA (1.75mW) Supply Current Per Comparator

* Single 4.5V to 5.5V Supply Operation

* Wide Input Range Includes Ground

* Low 500µV Offset Voltage

* Internal Hysteresis Provides Clean Switching (2mV)

* TTL-Compatible Outputs

* Internal Latch (MAX9109 only)

* Space-Saving Packages:

* 6-Pin SC70 (MAX9109)

* 8-Pin SOT23 (MAX9107)

* 14-Pin TSSOP (MAX9108)