Rail-to-Rail, Very Fast, 2.5 V to 5.5 V,

Single-Supply TTL/CMOS Comparator

ADCMP603

FEATURES

FUNCTIONAL BLOCK DIAGRAM

INPUT

INPUT

Q OUTPUT

Q OUTPUT

LE/HYS INPUT

ADCMP603

TTL

Fully specified rail to rail at V = 2.5 V to 5.5 V

CC

Input common-mode voltage from −0.2 V to V + 0.2 V

CC

Low glitch CMOS-/TTL-compatible output stage

Complementary outputs

3.5 ns propagation delay

12 mW at 3.3 V

Shutdown pin

Single-pin control for programmable hysteresis and latch

Power supply rejection > 50 dB

−40°C to +125°C operation

APPLICATIONS

Figure 1.

High speed instrumentation

Clock and data signal restoration

Logic level shifting or translation

Pulse spectroscopy

High speed line receivers

Threshold detection

Peak and zero-crossing detectors

High speed trigger circuitry

Pulse-width modulators

Current-/voltage-controlled oscillators

Automatic test equipment (ATE)

GENERAL DESCRIPTION

The device passes 4.5 kV HBM ESD testing and the absolute

maximum ratings include current limits for all pins.

The ADCMP603 is a very fast comparator fabricated on

XFCB2, an Analog Devices, Inc. proprietary process. This

comparator is exceptionally versatile and easy to use. Features

include an input range from V

The complementary TTL-/CMOS-compatible output stage is

designed to drive up to 5 pF with full timing specs and to

degrade in a graceful and linear fashion as additional

capacitance is added. 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.

Latch and programmable hysteresis features are also provided

with a unique single-pin control option.

− 0.5 V to V

EE

CC

+ 0.2 V, low noise

complementary TTL-/CMOS-compatible output drivers, latch

inputs with adjustable hysteresis and a shutdown input.

The device offers 3.5 ns propagation delay with 10 mV

overdrive on 4 mA typical supply current.

A flexible power supply scheme allows the device to operate

with a single +2.5 V positive supply and a −0.5 V to +2.8 V

input signal range up to a +5.5 V positive supply with a −0.5 V

to +5.8 V input signal range. Split input/output supplies with no

sequencing restrictions support a wide input signal range while

still allowing independent output swing control and power

savings.

The ADCMP603 is available in a 12-lead LFCSP package.

Rev. 0

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