LTC1444CS datasheet(4/12 Pages) LINER

Part #	LTC1444CS

Description	Ultralow Power Quad Comparators with Reference

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Manufacturer	LINER [Linear Technology]

Direct Link	http://www.linear.com

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LTC1443/LTC1444/LTC1445

LTC1444/LTC1445

Hysteresis Control

VREF – VHYST (mV)

0

–20

0

20

30

50

LTC1443/44/45 • TPC01

–40

–60

–80

10

20

40

60

80

Supply Current vs Supply Voltage

Supply Current vs Temperature

SUPPLY VOLTAGE (V)

1.0

4.0

4.2

4.4

4.6

4.8

5.0

5.2

1.5

2.0

2.5

3.0

LTC1443/44/45 • TPC02

TA = 25°C

TEMPERATURE (

°C)

–60

20

5.8

5.4

5.0

4.6

4.2

3.8

3.4

3.0

LTC1443/44/45 • TPC03

–20

60

–40

40

080 100 120

IN+ = (IN– + 100mV)

V– = GND (LTC1443)

V+ = 3V

V– = 0V

V+ = 5V

V– = 0V

V+ = 5V

V– = –5V

LTC1444/LTC1445 Reference

Voltage vs Temperature

TEMPERATURE (

°C)

–60

1.208

1.212

1.216

1.220

1.224

–40 –20

0

20

LTC1443/44/45 • TPC04

40

60

80 100 120

V+ = 5V

TEMPERATURE (

°C)

–60

1.186

1.184

1.182

1.180

1.178

1.176

1.174

1.172

1.170

100

LTC1443/44/45 • TPC05

–20

20

60 80

–40

0

40

120 140

V+ = 5V

V– = GND

LTC1443 Reference Voltage

vs Temperature

LOAD CURRENT (mA)

1.184

1.183

1.182

1.181

1.180

1.179

1.178

0.2

0.4

0.6

0.8

LTC1443/44/45 • TPC06

1.0

0.1

0

0.3

0.5

0.7

0.9

V+ = 5V

V– = GND

TA = 25°C

SOURCE

LTC1443 Reference Output

Voltage vs Output Load Current

LTC1443 Reference Output

Voltage vs Output Load Current

Comparator Output Voltage High

vs Load Current

Comparator Output Voltage Low

vs Load Current

LOAD CURRENT (

µA)

0

20

1.194

1.192

1.190

1.188

1.186

1.184

1.182

1.180

LTC1443/44/45 • TPC07

10

30

5

25

15

35

40

45

V+ = 5V

V– = GND

TA = 25°C

SINK

LOAD CURRENT (mA)

0

1.0

2.0

3.0

4.0

5.0

10

20

30

40

LTC1443/44/45 • TPC08

50

60

V+ = 5V

V+ = 3V

V+ = 2V

TA = 25°C

LOAD CURRENT (mA)

0

1.5

2.0

2.5

30

50

80

LTC1443/44/45 • TPC09

1.0

0.5

0

10

20

40

60

70

V+ = 2V

V+ = 3V

V+ = 5V

TA = 25°C

TYPICAL PERFOR A CE CHARACTERISTICS

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LTC1444CS Datasheet(PDF) 4 Page - Linear Technology

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