ADCMP567 データシートの表示（PDF） - Analog Devices

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ADCMP567

Dual Ultrafast Voltage Comparator

Analog Devices 

Data Sheet

FEATURES

250 ps propagation delay input to output

50 ps propagation delay dispersion

Differential PECL compatible outputs

Differential latch control

Robust input protection

Input common-mode range −2.0 V to +3.0 V

Input differential range ±5 V

ESD protection >3 kV HBM, >200 V MM

Power supply sensitivity >65 dB

200 ps minimum pulse width

5 GHz equivalent input rise time bandwidth

Typical output rise/fall of 165 ps

Dual Ultrafast Voltage Comparator

ADCMP567

FUNCTIONAL BLOCK DIAGRAM

NONINVERTING

INPUT

INVERTING

INPUT

ADCMP567

Q OUTPUT

Q OUTPUT

LATCH ENABLE

INPUT

LATCH ENABLE

INPUT

03632-0-001

Figure 1.

APPLICATIONS

High speed instrumentation

Scope and logic analyzer front ends

Window comparators

High speed line receivers and signal restoration

Threshold detection

Peak detection

High speed triggers

Patient diagnostics

Disk drive read channel detection

Hand-held test instruments

Zero-crossing detectors

Clock drivers

Automatic test equipment

GENERAL DESCRIPTION

The ADCMP567 is an ultrafast voltage comparator fabricated

on Analog Devices, Inc., proprietary XFCB process. The device

features 250 ps propagation delay with less than 35 ps overdrive

dispersion. Overdrive dispersion, a particularly important

characteristic of high speed comparators, is a measure of the

difference in propagation delay under differing overdrive

conditions.

A fast, high precision 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 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 is included, which permits tracking, track-and-hold, or

sample-and-hold modes of operation.

The ADCMP567 is available in a 32-lead LFCSP package.

Rev. A

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