2

LTC1686/LTC1687

A

G

A

U

A

R

BSOLUTEXI

TI

S

(Note 1)

Control Input Currents .................... – 100mA to 100mA

Driver Output Voltages ................................. + 12V/– 7V

Receiver Input Voltages ................................ + 12V/– 7V

Receiver Input Differential ...................................... 10V

Driver Short-Circuit Duration

Receiver Short-Circuit Duration

Operating Temperature Range .................... 0

°C to 70°C

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

°C to 150°C

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

°C

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Differential Driver Output (Unloaded)

q

V

Differential Driver Output (With Load)

R = 50

Ω (RS422)

2.0

V

R = 27

Ω (RS485), Figure 1

q

1.5

V

Change in Magnitude of Driver Differential

R = 27

Ω or 50Ω, Figure 1

q

0.2

V

Output Voltage for Complementary

Output States

Driver Common Mode Output Voltage

R = 27

q

23

V

Change in Magnitude of Driver Common

R = 27

Ω or 50Ω, Figure 1

q

0.2

V

Mode Output Voltage for Complementary

Output States

Input High Voltage

D, DE, RE

q

2V

Input Low Voltage

D, DE, RE

q

0.8

V

Input Current

D, DE, RE

q

–1

1

µA

Input Current (A, B)

q

500

µA

q

– 500

µA

Differential Input Threshold Voltage

– 7V

q

– 0.3

0.3

V

for Receiver

Receiver Input Hysteresis

25

mV

Receiver Output High Voltage

q

3.5

4.8

V

Consult factory for Industrial and Military grade parts.

DC ELECTRICAL CHARACTERISTICS

PACKAGE/ORDER I FOR ATIO

LTC1687CS

ORDER PART

NUMBER

14

13

12

11

10

9

8

7

6

5

4

3

2

1

TOP VIEW

S PACKAGE

14-LEAD PLASTIC SO

NC

Y

NC

Z

B

NC

D

GND

GND

R

RE

DE

A

R

D

ORDER PART

NUMBER

LTC1686CS8

S8 PART MARKING

S8 PACKAGE

8-LEAD PLASTIC SO

1

2

3

4

8

7

6

5

TOP VIEW

R

D

GND

A

B

Z

Y

R

D

1686