●Product Details
●The ADCMP561/ADCMP562 are high speed comparators fabricated on Analog Devices, Inc., proprietary XFCB process. The devices feature a 700 ps propagation delay with less than 75 ps overdrive dispersion. Dispersion, a measure of the difference in propagation delay under differing overdrive conditions, is a particularly important characteristic of comparators. A separate programmable hysteresis pin is available on the ADCMP562.
●A differential input stage permits consistent propagation delay with a wide variety of signals in the common-mode range from −2.0 V to +3.0 V. Outputs are complementary digital signals that are fully compatible with PECL 10 K and 10 KH logic families. The outputs provide sufficient drive current to directly drive transmission lines terminated in 50 Ω to VDD − 2 V. A latch input, which is included, permits tracking, track-and-hold, or sample-and-hold modes of operation. The latch input pins contain internal pull-ups that set the latch in tracking mode when left open.
●The ADCMP561/ADCMP562 are specified over the industrial temperature range (−40°C to +85°C).
●Applications
● Automatic test equipment
● High speed instrumentation
● Scope and logic analyzer front ends
● Window comparators
● High speed line receivers
● Threshold detection
● Peak detection
● High speed triggers
● Patient diagnostics
● Disk drive read channel detection
● Hand-held test instruments
● Zero-crossing detectors
● Line receivers and signal restoration
● Clock drivers
●### Features and Benefits
● Differential PECL-compatible outputs
● 700 ps propagation delay input to output
● 75 ps propagation delay dispersion
● Input common-mode range: –2.0 V to +3.0 V
● Robust input protection
● Differential latch control
● Internal latch pull-up resistors
● Power supply rejection greater than 85 dB
● 700 ps minimum pulse width
● 1.5 GHz equivalent input rise time bandwidth
● Typical output rise/fall time of 500 ps
● ESD protection > 4 kV HBM, >200 V MM
● Programmable hysteresis
Part 3D Model
