DS36950

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SNLS075C – JULY 1998 – REVISED FEBRUARY 2013

Electrical Characteristics

(1) (continued)

Over Supply Voltage and Operating Temperature ranges, unless otherwise specified

Parameter

Test Conditions

Min

Typ

Max

Units

(EIA-485)

−130

−250

mA

(EIA-422)

−90

−150

mA

(EIA-485)

130

250

mA

Receiver Characteristics

Short Circuit Output Current

(5)

−15

−28

−75

mA

TRI-STATE Output Current

20

μA

Output Voltage High

2.4

3.0

V

Output Voltage Low

0.35

0.5

V

Differential Input High Threshold

0.03

0.20

V

Voltage

−0.20

−0.03

V

(6)

(EIA-422/485)

35

60

mV

Driver and Receiver Characteristics

Enable Input Voltage High

2.0

V

Enable Input Voltage Low

0.8

V

Enable Input Clamp Voltage

I =

−18 mA

−1.5

V

Other Input = 0V

0.5

1

mA

−0.45

−0.8

mA

Enable Input Current High

RE4 or DE

20

μA

REC

60

μA

Enable Input Current Low

RE4 or DE

−20

μA

REC

−60

μA

No Load, Outputs Enabled

75

90

mA

No Load, Outputs Disabled

50

70

mA

(5)

Short one output at a time.

(6)

Threshold parameter limits specified as an algebraic value rather than by magnitude.

(7)

(8)

(9)

Total package supply current.

Switching Characteristics

Over Supply Voltage and Operating Temperature ranges, unless otherwise specified

Symbol

Test Conditions

Min

Typ

Max

Units

Driver Single-Ended Characteristics

35

40

ns

25

40

ns

15

25

ns

35

40

ns

Driver Differential Characteristics

Rise & Fall Time

13

16

ns

Differential Propagation

9

15

19

ns

9

15

19

ns

(Figure 5 )

3

6

ns

(1)

Differential propagation delays are calculated from single-ended propagation delays measured from driver input to the 20% and 80%

levels on the driver outputs (See Figure 5).

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