lt1671cs8-trpbf Linear Technology Corporation, lt1671cs8-trpbf Datasheet

lt1671cs8-trpbf

Manufacturer Part Number

lt1671cs8-trpbf

Description

60ns, Low Power,single Supply, Ground-sensing Comparator

Manufacturer

Linear Technology Corporation

Datasheet

1.LT1671CS8-TRPBF.pdf (12 pages)

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FEATURES

TYPICAL APPLICATIO

APPLICATIO S

Low Power: 450 A

Fast: 60ns at 20mV Overdrive

Low Offset Voltage: 0.8mV

Operates Off Single 5V or Dual 5V Supplies

Input Common Mode Extends to Negative Supply

No Minimum Input Slew Rate Requirement

Complementary TTL Outputs

Inputs Can Exceed Supplies without Phase Reversal

Pin Compatible with LT1394, LT1016 and LT1116

Output Latch Capability

Available in 8-Lead MSOP and SO Packages

High Speed A/D Converters

Zero-Crossing Detectors

Current Sense for Switching Regulators

Extended Range V/F Coverters

Fast Pulse Height/Width Discriminators

High Speed Triggers

Line Receivers

High Speed Sampling Circuits

85ns at 5mV Overdrive

1MHz Crystal Oscillator

0.068 F

1MHz CRYSTAL

(AT-CUT)

–

LT1671

OUTPUT

1671 TA01

Single Supply, Ground-Sensing

DESCRIPTIO

The LT

mentary outputs and latch. The input common mode

range extends from 1.5V below the positive supply down

to the negative supply rail. Like the LT1394, LT1016 and

LT1116, this comparator has complementary outputs

designed to interface directly to TTL or CMOS logic. The

LT1671 may operate from either a single 5V supply or dual

gain allow the LT1671 to be used in precision applications.

The LT1671 is designed for improved speed and stability

for a wide range of operating conditions. The output stage

provides active drive in both directions for maximum

speed into TTL, CMOS or passive loads with minimal

cross-conduction current. Unlike other fast comparators,

the LT1671 remains stable even for slow transitions

through the active region, which eliminates the need to

specify a minimum input slew rate.

The LT1671 has an internal, TTL/CMOS compatible latch

for retaining data at the outputs. The latch holds data as

long as the LATCH pin is held high. Device parameters

such as gain, offset and negative power supply current are

not significantly affected by variations in negative supply

voltage.

5V supplies. Low offset voltage specifications and high

, LTC and LT are registered trademarks of Linear Technology Corporation.

1671 is a low power 60ns comparator with comple-

140

120

100

Propagation Delay vs Overdrive

60ns, Low Power,

OVERDRIVE (mV)

FALLING EDGE (t

RISING EDGE (t

Comparator

STEP

PDLH

= 25 C

= 5V

= 1M

PDHL

= 100mV

)

1671 TA02

LT1671

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