LTC1485CS8 datasheet(2/12 Pages) LINER

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LTC1485

BSOLUTEXI

PACKAGE/ORDER I FOR ATIO

(Note 1)

Supply Voltage (VCC) .............................................. 12V

Control Input Voltages ................... – 0.5V to VCC + 0.5V

Control Input Currents ........................ – 50mA to 50mA

Driver Input Voltages ..................... – 0.5V to VCC + 0.5V

Driver Input Currents .......................... – 25mA to 25mA

Driver Output Voltages .........................................

±14V

Receiver Input Voltages ........................................

±14V

Receiver Output Voltages .............. – 0.5V to VCC + 0.5V

Operating Temperature Range

LTC1485C ............................................... 0

°C to 70°C

LTC1485I .......................................... – 40

°C to 85°C

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

°C to 150°C

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

°C

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

VOD1

Differential Driver Output Voltage (Unloaded)

IO = 0

VOD2

Differential Driver Output Voltage (With Load)

R = 50

Ω, (RS422)

R = 27

Ω, (RS485) (Figure 1)

1.5

∆VOD

Change in Magnitude of Driver Differential

R = 27

Ω or R = 50Ω (Figure 1)

0.2

Output Voltage for Complementary Output States

VOC

Driver Common-Mode Output Voltage

R = 27

Ω or R = 50Ω (Figure 1)

∆|VOC|

Change in Magnitude of Driver Common-Mode

R = 27

Ω or R = 50Ω (Figure 1)

0.2

Output Voltage for Complementary Output States

VINH

Input High Voltage

DI, DE, RE

2.0

VINL

Input Low Voltage

DI, DE, RE

0.8

IIN1

Input Current

DI, DE, RE

±2

µA

IIN2

Input Current (A, B)

VCC = 0V or 5.25V, VIN = 12V

1.0

VCC = 0V or 5.25V, VIN = – 7V

– 0.8

VTH

Differential Input Threshold Voltage for Receiver

– 7V

≤ VCM ≤ 12V

– 0.2

0.2

∆VTH

Receiver Input Hysteresis

VCM = 0V

VOH

Receiver Output High Voltage

IO = – 4mA, VID = 0.2V

3.5

VOL

Receiver Output Low Voltage

IO = 4mA, VID = – 0.2V

0.4

IOZR

Three-State Output Current at Receiver

VCC = Max 0.4V ≤ VO ≤ 2.4V

±1

µA

ICC

Supply Current

No Load; DI = GND or VCC

Outputs Enabled

1.8

2.3

Outputs Disabled

1.7

2.3

RIN

Receiver Input Resistance

– 7V

≤ VCM ≤ 12V

Ω

IOSD1

Driver Short-Circuit Current, VOUT = High

VO = – 7V

250

IOSD2

Driver Short-Circuit Current, VOUT = Low

VO = 10 V

250

IOSR

Receiver Short-Circuit Current

≤ VO ≤ VCC

785

VCC = 5V (Notes 2, 3), unless otherwise noted.

ELECTRICAL C

HARA TERISTICS

TOP VIEW

VCC

N8 PACKAGE

8-LEAD PLASTIC DIP

GND

S8 PACKAGE

8-LEAD PLASTIC SOIC

TJMAX = 125°C, θJA = 100°C/ W (N)

TJMAX = 150°C, θJA = 150°C/ W (S)

Consult factory for Military grade parts.

ORDER PART

NUMBER

S8 PART MARKING

LTC1485CN8

LTC1485IN8

LTC1485CS8

LTC1485IS8

1485

1485I

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