LTC2844CG datasheet(2/20 Pages) LINER

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LTC2844

sn2844 2844fs

ORDER PART

NUMBER

(Note 1)

Supply Voltage

VCC ....................................................... –0.3V to 6.5V

VIN ..................................................................... –0.3V to 6.5V

VEE ...................................................................... –10V to 0.3V

VDD ..................................................................... – 0.3V to 10V

Input Voltage

Transmitters ............................ – 0.3V to (VCC + 0.3V)

Receivers ................................................– 18V to 18V

Logic Pins ............................... – 0.3V to (VCC + 0.3V)

Output Voltage

Transmitters .................. (VEE – 0.3V) to (VDD + 0.3V)

Receivers ................................. – 0.3V to (VIN + 0.3V)

Short-Circuit Duration

Transmitter Output ...................................... Indefinite

Receiver Output ........................................... Indefinite

VEE................................................................... 30 sec

Operating Temperature Range

LTC2844CG ............................................. 0

°C to 70°C

LTC2844IG ......................................... – 40

°C to 85°C

Storage Temperature Range ................. – 65

°C to 150°C

Lead Temperature (Soldering, 10 sec).................. 300

°C

LTC2844CG

LTC2844IG

TJMAX = 125°C, θJA = 90°C/ W, θJC = 35°C/ W

Consult LTC Marketing for parts specified with wider operating temperature ranges.

The q denotes specifications which apply over the full operating tempera-

ture range, otherwise specifications are at TA = 25°C. VCC = 5V, VIN = 3.3V, VDD = 8V, VEE = – 7V for V.28, – 5.5V for V.10, V.11

(Notes 2, 3)

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Supplies

ICC

VCC Supply Current (DCE Mode,

RS530, RS530-A, X.21 Modes, No Load

2.7

All Digital Pins = GND or VIN)

RS530, RS530-A, X.21 Modes, Full Load

120

V.28 Mode, No Load

V.28 Mode, Full Load

No-Cable Mode

600

1200

µA

IEE

VEE Supply Current (DCE Mode Unless

RS530, RS530-A, X.21 Modes, No Load

1.6

Otherwise Noted, All Digital Pins = GND or VIN) RS530, X.21 Modes, Full Load (DTE Mode)

RS530-A, Full Load (DTE Mode)

V.28 Mode, No Load

V.28 Mode, Full Load

7.5

No-Cable Mode

µA

IDD

VDD Supply Current (DCE Mode,

RS530, RS530-A, X.21 Modes, No Load

0.2

All Digital Pins = GND or VIN)

RS530, RS530-A, X.21 Modes, Full Load

0.2

V.28 Mode, No Load

V.28 Mode, Full Load

No-Cable Mode

µA

IVIN

VIN Supply Current (DCE Mode,

All Modes Except No-Cable Mode

490

µA

All Digital Pins = GND or VIN)

ABSOLUTE

AXI U

RATI GS

PACKAGE/ORDER I FOR ATIO

ELECTRICAL CHARACTERISTICS

TOP VIEW

VCC

VDD

DCE/DTE

VEE

GND

D1 A

D1 B

D2 A

D2 B

D3/R1 A

D3/R1 B

R2 A

R2 B

R3 A

R3 B

D4/R4 A

VIN

G PACKAGE

28-LEAD PLASTIC SSOP

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