DESCRIPTION
The LT685 is an ultrafast comparator with differential inputs and complementary outputs fully compatible with ECL logic levels. The output current capability is adequate for driving transmission lines terminated in 50Ω. The low input offset and high resolution make this comparator ideally suited for analog-to-digital signal processing applications.

FEATURES
■ Ultrafast (5.5ns typ)
■ Complementary ECL Output
■ 50Ω Line Driving Capability
■ Low Offset Voltage
■ Output Latch Capability
■ External Hysteresis Control
■ Pin Compatible with Am685

APPLICATIONS
■ High Speed A to D Converters
■ High Speed Sampling Circuits
■ Oscillators