LT1721IS#PBF LT1721CS#PBF LT1721CGN#PBF LT1721IGN#PBF LT1721IS#TRPBF

LT1721CS#TRPBF LT1721IGN Comparator CMOS ICs

IC Comparator General Purpose CMOS, Rail-to-Rail, TTL 16-SSOP

Description:

The LT®1720/LT1721 are UltraFastTM dual/quad comparators optimized for single supply operation,

with a supply voltage range of 2.7V to 6V.

The input voltage range extends from 100mV below ground to 1.2V below the supply voltage.

Internal hysteresis makes the LT1720/LT1721 easy to use even with slow moving input signals.

The rail-to-rail outputs directly interface to TTL and CMOS.

Alternatively, the symmetric output drive can be harnessed for analog applications or for easy translation to other single supply logic levels.

The LT1720 is available in three 8-pin packages; three pins per comparator plus power and ground.

In addition to SO and MSOP packages, a 3mm × 3mm low profi le (0.8mm) dual fi ne pitch leadless package (DFN) is available for space limited applications.

The LT1721 is available in the 16-pin SSOP and S packages.

The pinouts of the LT1720/LT1721 minimize parasitic effects by placing the most sensitive inputs (inverting) away from the outputs,

shielded by the power rails. The LT1720/LT1721 are ideal for systems where small size and low power are paramount.

Features:

UltraFast: 4.5ns at 20mV Overdrive 7ns at 5mV

Overdrive n Low Power: 4mA per Comparator

Optimized for 3V and 5V Operation n Pinout Optimized for High Speed Ease of Use

Input Voltage Range Extends 100mV Below Negative Rail

TTL/CMOS Compatible Rail-to-Rail Outputs n Internal Hysteresis with Specifi ed Limits

Low Dynamic Current Drain; 15μA/(V-MHz), Dominated by Load In Most Circuits

Tiny 3mm × 3mm × 0.75mm DFN Package (LT1720)

Applications:

High Speed Differential Line Receiver
Crystal Oscillator Circuits
Window Comparators
Threshold Detectors/Discriminators
Pulse Stretchers
Zero-Crossing Detectors
High Speed Sampling Circuits

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Application:

Medical Instruments

Flash-Based MP3 Players

Noise Canceling Headphones

Wireless Mice

Bluetooth Headsets

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