LTC2802 datasheet(3/18 Pages) LINER

Part #	LTC2802

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

electrical characteriSticS The

l

denotes the specifications which apply over the full operating

temperature range, otherwise specifications are at TA = 25°C, VCC = 1.8V to 5.5V, VL = 1.8V to 5.5V, Normal Mode. Typical values are

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

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Power Supplies

ICC

VCC Supply Current

Outputs Unloaded

Normal Mode (Note 3)

Receivers Active Mode

Shutdown Mode

l

2.3

1

10

mA

µA

IL

VL Supply Current

Outputs Unloaded

Normal Mode (LTC2801, LTC2802)

Normal Mode (LTC2803, LTC2804)

Receivers Active Mode

Shutdown Mode

l

0.08

0.15

15

1

0.15

0.30

30

10

mA

µA

Driver

VOLD

Output Voltage

RL = 3kΩ

Low

l

–5

–5.7

V

VOHD

Output Voltage

RL = 3kΩ

High

l

5

6.2

V

VHYSD

Logic Input Hysteresis

0.6

V

IOSD

Output Short Circuit Current

VL = VCC = 5.5V; VTOUT = 0V

l

±35

±70

mA

IPOLD

Power-Off Output Leakage Current

VL = VCC = VDD = VEE = 0V; VTOUT = ±2V

l

±0.1

±10

µA

IOLD

Output Leakage Current

Shutdown or Receivers Active or

Drivers Disabled Modes, –15V

≤ VTOUT ≤ 15V

l

±0.1

±10

µA

Receiver

VIR

Input Thresholds

Receivers Active Mode

l

0.8

1.5

2.4

V

VILR

Input Thresholds

Normal Mode, Input Low

l

0.8

1.3

V

VIHR

Input Thresholds

Normal Mode, Input High

l

1.7

2.5

V

VHYSR

Input Hysteresis

Normal Mode

l

0.1

0.4

1.0

V

VOLR

Output Voltage

Output Low, IROUT = 1mA (Sinking)

l

0.2

0.4

V

VOHR

Output Voltage

Output High, IROUT = –1mA (Sourcing)

l

VL –0.4 VL –0.2

V

RIN

Input Resistance

–15V

≤ VRIN ≤ 15V

l

3

5

7

k

W

IOSR

Output Short Circuit Current

VL = 5.5V; 0V ≤ VROUT ≤ VL

l

±25

±50

mA

Logic

Logic Input Voltage Threshold

l

0.4

0.67 • VL

V

IIN

Logic Input Current

l

±1

µA

Power Supply Generator

VDD

Regulated VDD Output Voltage

Driver RL = 3kW (Note 3)

LTC2801, LTC2802: VTIN = VL

LTC2803, LTC2804: VT1IN = VL, VT2IN = 0V

7

V

VEE

Regulated VEE Output Voltage

Driver RL = 3kW (Note 3)

LTC2801, LTC2802: VTIN = VL

LTC2803, LTC2804: VT1IN = VL, VT2IN = 0V

–6.3

V

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