LTC2804IGN-1 datasheet(7/18 Pages) LINER

Part #	LTC2804IGN-1

Description	1.8V to 5.5V RS-232 Single and Dual Transceivers

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Manufacturer	LINER [Linear Technology]

Direct Link	http://www.linear.com

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2801234fe

LTC2801/LTC2802/

LTC2803/LTC2804

tyPical PerForMance characteriSticS

Receiver Input Threshold

vs Temperature

Receiver Output Voltage

vs Load Current

Receiver Output Duty Cycle

Driver Slew Rate

vs Load Capacitance

Driver Short-Circuit Current

vs Temperature

Shutdown or Drivers Disabled Mode

Driver Leakage vs Temperature

Logic Input Threshold

vs VL Supply Voltage

LTC2804 Driver Outputs Exiting

Shutdown

LTC2804 Driver Outputs

Enable/Disable

TA = 25°C, VCC = VL = 3.3V unless otherwise noted.

TEMPERATURE (°C)

–50

3.0

2.5

2.0

1.5

1.0

0.5

0

25

75

2801 GO7

–25

0

50

100

125

INPUT HIGH

INPUT LOW

VL = 5.5V

VL = 3.3V

VL = 1.8V

LOAD CURRENT (mA)

2801 GO8

6

5

4

3

2

1

0

2

4

5

1

3

6

7

8

VL = 5.5V

VL = 3.3V

VL = 1.8V

VL = 5.5V

VL = 3.3V

VL = 1.8V

RECEIVERS

ALIVE MODE

NORMAL

MODE

RIN = ±3V

CL = 150pF

10

100

80

60

40

20

0

100

1000

10000

2801 GO9

DATA RATE (kbps)

LOAD CAPACITANCE (nF)

0

3

5

2801 G10

1

2

4

80

70

60

50

40

30

20

10

0

FALLING (LTC2802/04)

RISING (LTC2802/04)

FALLING (LTC2801/03)

RISING (LTC2801/03)

TEMPERATURE (°C)

–50

60

50

40

30

20

10

0

25

75

2801 G11

–25

0

50

100

125

SINKING

SOURCING

REGULATOR CAN

LIMIT FURTHER

VL SUPPLY VOLTAGE (V)

1

3.0

2.5

2.0

1.5

1.0

0.5

0

2

3

4

5

2801 G13

6

INPUT HIGH

INPUT LOW

TA = 85°C

TA = 25°C

TA = –40°C

10–6

10–7

10–8

10–9

10–10

10–11

2801 G12

V(TOUT) = 15V OR

V(TOUT) = –15V

TEMPERATURE (°C)

–50

25

75

–25

0

50

100

125

2V/DIV

5V/DIV

T2OUT

T1OUT

MODE AND PS

VCC = 3.3V

VL = 1.8V

LOAD = 3k + 2.5nF

100µs/DIV

2801 G14

2V/DIV

5V/DIV

T2OUT

T1OUT

MODE

VCC = 3.3V

VL = 1.8V

LOAD = 3k + 250pF

2µs/DIV

2801 G15

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LTC2804IGN-1 Datasheet(PDF) 7 Page - Linear Technology

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