LTC1440IN8 datasheet(3/16 Pages) LINER

Part #	LTC1440IN8

Description	Ultralow Power Single/Dual Comparator with Reference

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Manufacturer	LINER [Linear Technology]

Direct Link	http://www.linear.com

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LTC1440/LTC1441/LTC1442

144012fc

ELECTRICAL CHARACTERISTICS The ● denotes the specifications which apply over the full operating

temperature range, otherwise specifications are at TA = 25°C. V

+ = 5V and V– = GND = 0V unless otherwise noted.

SYMBOL PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Power Supply

V +

Supply Voltage Range

●

2.0

11.0

V

ICC

Supply Current

IN + = IN – + 80mV

LTC1440 0

°C ≤ TA ≤ 70°C

●

2.1

4.0

µA

HYST = REF (LTC1440/LTC1442)

–40

°C ≤ TA ≤ 85°C ●

4.4

µA

LTC1441

●

3.5

5.7

µA

LTC1442

●

3.5

5.7

µA

Comparator

VOS

Comparator Input Offset Voltage

VCM = 2.5V

●

±3

±10

mV

IIN

Input Leakage Current (IN +, IN –)VIN+ = VIN– = 2.5V

●

±0.01

±1.0

nA

Input Leakage Current (HYST)

●

±0.02

±1.0

nA

VCM

Comparator Input Common

●

V –

V + – 1.3V

V

Mode Range

CMRR

Common Mode Rejection Ratio

V – to V + – 1.3V

0.1

1

mV/V

PSRR

Power Supply Rejection Ratio

V + = 2V to 11V (LTC1441)

0.1

1

mV/V

V + = 2.5V to 11V (LTC1440/LTC1442)

0.1

1

mV/V

NOISE

Voltage Noise

100Hz to 100kHz

100

µVRMS

VHYST

Hysteresis Input Voltage Range

LTC1440/LTC1442

● REF – 50mV

REF

V

tPD

Propagation Delay

COUT = 100pF

Overdrive = 10mV

15

µs

Overdrive = 100mV

8

µs

VOH

Output High Voltage

IO = – 13mA

●

V + – 0.4V

V

VOL

Output Low Voltage

IO = 1.8mA

LTC1440

●

GND + 0.4V

V

LTC1441/LTC1442

●

V – + 0.4V

V

Reference

VREF

Reference Voltage

No Load

LTC1440/LTC1442

0

°C ≤ TA ≤ 70°C

●

1.170

1.194

V

–40

°C ≤ TA ≤ 85°C

●

1.164

1.200

V

LTC1440 (MSOP, DFN)

●

1.164

1.200

V

ISOURCE

Reference Output Source Current

∆VREF ≤ 1mV (LTC1442)

●

100

µA

ISINK

Reference Output Sink Current

∆VREF ≤ 2.5mV (LTC1442)

10

20

µA

∆VREF

Reference Source Current

0

≤ ISOURCE ≤ 2mA (LTC1440)

●

0.8

5

mV

Reference Sink Current

0

≤ ISINK ≤ 10µA (LTC1440)

0.5

1.5

mV

●

5mV

NOISE

Voltage Noise

100Hz to 100kHz

100

µVRMS

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