Rail-to-Rail, Very Fast, 2.5 V to 5.5 V,
Single-Supply LVDS Comparators
Fully specified rail to rail at VCCI = 2.5 V to 5.5 V
Input common-mode voltage from −0.2 V to VCCI + 0.2 V
Low glitch LVDS-compatible output stage
1.6 ns propagation delay
37 mW at 2.5 V
Single-pin control for programmable hysteresis and latch
Power supply rejection > 60 dB
−40°C to +125°C operation
High speed instrumentation
Clock and data signal restoration
Logic level shifting or translation
High speed line receivers
Peak and zero-crossing detectors
High speed trigger circuitry
Automatic test equipment (ATE)
FUNCTIONAL BLOCK DIAGRAM
LE/HYS INPUT (ADCMP605
The ADCMP604/ADCMP605 are very fast comparators fabricated
on the Analog Devices, Inc. proprietary XFCB2 process. These
comparators are exceptionally versatile and easy to use. Features
include an input range from VEE − 0.5 V to VCCI + 0.2 V, low noise,
LVDS-compatible output drivers, and TTL/CMOS latch inputs
with adjustable hysteresis and/or shut-down inputs.
The devices offer 1.5 ns propagation delays with 1 ps rms
random jitter (RJ). Overdrive and slew rate dispersion are
typically less than 50 ps.
A flexible power supply scheme allows the devices to operate
with a single 2.5 V positive supply and a −0.5 V to +2.7 V input
signal range up to a 5.5 V positive supply with a −0.5 V to +5.7 V
input signal range. Split input/output supplies, with no sequencing
restrictions on the ADCMP605, support a wide input signal
range with greatly reduced power consumption.
The LVDS-compatible output stage is designed to drive any
standard LVDS input. The comparator input stage offers robust
protection against large input overdrive, and the outputs do not
phase reverse when the valid input signal range is exceeded. High
speed latch and programmable hysteresis features are also provided
in a unique single-pin control option.
The ADCMP604 is available in a 6-lead SC70 package, and the
ADCMP605 is available in a 12-lead LFCSP.
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