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MAX9109：25ns, 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.

Key Features 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)

MAX9107, MAX9108, MAX9109: Pin Configuration Applications/Uses A/D Converters Battery-Powered Applications Line Receivers Sampling Circuits Threshold Detectors/Discriminators Zero-Crossing Detectors

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