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

Description

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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 V_DD + 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.

Key Features

• Fast Propagation Delay: 280ps, Typ
• Low Overdrive Dispersion: 25ps (V_OD = 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

Applications/Uses

• 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