280ps High-Speed Comparator, Ultra-Low Dispersion with LVDS Outputs

The MAX40025 and MAX40026 are single-supply, high-speed comparators with a typical propagation delay of 280ps. The overdrive dispersion is extremely low (typical 25ps), making these comparators ideal for time-of-flight distance measurement applications.

The input common mode range of 1.5V to VDD + 0.1V is compatible with the output swings of several widely used high-speed trans-impedance amplifiers, such as the MAX40658.

The output stage is LVDS (Low-Voltage Differential Signaling), which helps to minimize power dissipation and interfaces directly with many FPGAs and CPUs. Complementary outputs help in suppression of common-mode noise on each output line.

The MAX40025 is offered in a space-saving, tiny, 1.218mm x 0.818mm, 6-bump wafer-level package (WLP), while the MAX40026 is available in a 2mm x 2mm 8-pin TDFN package and meets AEC-Q100 automotive qualification requirements. The MAX40025/MAX40026 operate over -40°C to +125°C temperature range and run from a single supply voltage of 2.7V to 3.6V.

Applications

* Automotive Applications * Communications * Distance Sensing in LIDAR, RADAR, and SONAR * High-Speed Differential Line Receivers * High-Speed Level-Shifting * High-Speed Triggering in Oscilloscopes * Oscillators * Test and Measurement * Threshold Detectors * Time-of-Flight Sensors

* Fast Propagation Delay: 280ps, Typ

* Low Overdrive Dispersion: 25ps (VOD = 10mV to 1V)

* Supply Voltage 2.7V to 3.6V

* 39.4mW at 2.7V Supply

* Power-Efficient LVDS Outputs

* -40°C to +125°C Temperature Range

* Automotive AEC-Q100 Qualified (TDFN-8 Version)

* Internal 1.5mV Hysteresis: MAX40026

* Internal 2.5mV Hysteresis: MAX40025A