PARAMETER MEASUREMENT INFORMATION

60

1%

W ±

V

OD

0Vor3V

_

+

–7V<V(test)<12V

DE

V

CC

A

B

D

375

1%

W ±

375

1%

W ±

S0301-02

V

OC

27

1%

W ±

27

1%

W ±

Input

A

B

V

A

V

B

V

OC(PP)

V

OC

C =50pF

L

±20%

D

A

B

DE

V

CC

C IncludesFixtureand

L

InstrumentationCapacitance

S0302-01

V

OD

RL =54

1%

W

±

50 W

t

PLH

t

PHL

50%

50%

3V

» 2V

» –2V

90%

10%

0V

V

I

V

OD

t

r

t

f

C =50pF 20%

L

±

C IncludesFixture

L

andInstrumentation

Capacitance

D

A

B

DE

V

CC

V

I

Input

Generator

90%

0V

10%

S0303-01

0.5V

3V

0V

V

OH

» 0V

t

PHZ

t

PZH

50%

50%

V

I

V

O

50%

90%

R =110

L

W

± 1%

Input

Generator

50 W

3V

S1

C =50pF

L

±20%

C IncludesFixture

L

andInstrumentation

Capacitance

D

A

B

DE

V

O

V

I

S0304-01

SN65HVD1780

SN65HVD1781

SN65HVD1782

Input generator rate is 100 kbps, 50% duty cycle, rise and fall times less than 6 nsec, output impedance 50

Ω.

Figure 1. Measurement of Driver Differential Output Voltage With Common-Mode Load

Figure 2. Measurement of Driver Differential and Common-Mode Output With RS-485 Load

Figure 3. Measurement of Driver Differential Output Rise and Fall Times and Propagation Delays

NOTE: D at 3 V to test non-inverting output, D at 0 V to test inverting output.

Figure 4. Measurement of Driver Enable and Disable Times With Active High Output and Pulldown Load

8

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