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LT1671IS8 Datasheet

  • LT1671IS8

  • 60ns, Low Power, Single Supply, Ground-Sensing Comparator

  • 12頁(yè)

  • LINER

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LT1671
60ns, Low Power,
Single Supply, Ground-Sensing
Comparator
FEATURES
s
s
DESCRIPTIO
s
s
s
s
s
s
s
s
s
Low Power: 450
碌
A
Fast: 60ns at 20mV Overdrive
85ns at 5mV Overdrive
Low Offset Voltage: 0.8mV
Operates Off Single 5V or Dual
鹵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
The LT
廬
1671 is a low power 60ns comparator with comple-
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
鹵5V
supplies. Low offset voltage specifications and high
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.
, LTC and LT are registered trademarks of Linear Technology Corporation.
APPLICATIO S
s
s
s
s
s
s
s
s
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
TYPICAL APPLICATIO
5V
2k
1MHz CRYSTAL
(AT-CUT)
Propagation Delay vs Overdrive
140
120
100
V
S
=
鹵5V
V
STEP
= 100mV
T
A
= 25擄C
R
L
= 1M
1MHz Crystal Oscillator
TIME (ns)
80
FALLING EDGE (t
PDHL
)
60
40
20
+
2k
LT1671
OUTPUT
鈥?/div>
2k
0.068碌F
1671 TA01
1671 TA01
0
U
RISING EDGE (t
PDLH
)
10
20
30
OVERDRIVE (mV)
40
50
1671 TA02
U
U
1

LT1671IS8 產(chǎn)品屬性

  • LT1671

  • 100

  • 集成電路 (IC)

  • 線性 - 比較器

  • -

  • 帶鎖銷(xiāo)

  • 1

  • CMOS，補(bǔ)充型，TTL

  • -

  • 2.5mV @ ±5V

  • 0.28µA @ ±5V

  • 20mA

  • 800µA

  • 100dB CMRR，85dB PSRR

  • 80ns

  • -

  • -40°C ~ 85°C

  • 8-SOIC（0.154"，3.90mm 寬）

  • 表面貼裝

  • 管件

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