SN75174

QUADRUPLE DIFFERENTIAL LINE DRIVER

SLLS039B – OCTOBER 1980 – REVISED MAY 1995

4

POST OFFICE BOX 655303

electrical characteristics over recommended ranges of supply voltage and operating free-air

temperature (unless otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP†

MAX

UNIT

VIK

Input clamp voltage

II = – 18 mA

– 1.5

V

VOH

High level output voltage

VIH = 2 V,

VIL= 0.8 V,

37

V

VOH

High-level output voltage

IH

,

IL

,

IOH = – 33 mA

3.7

V

VOL

Low level output voltage

VIH = 2 V,

VIL= 0.8 V,

11

V

VOL

Low-level output voltage

IH

,

IL

,

IOL = 33 mA

1.1

V

VO

Output voltage

IO = 0

0

6

V

|VOD1|

Differential output voltage

IO = 0

1.5

6

6

V

RL = 100 Ω

See Figure 1

1/2 VOD1

V

|VOD2|

Differential output voltage

RL = 100 Ω,

See Figure 1

OD1

or 2‡

V

RL = 54 Ω,

See Figure 1

1.5

2.5

5

V

VOD3

Differential output voltage

See Note 2

1.5

5

V

∆|VOD|

Change in magnitude of differential output

voltage§

±0.2

V

VOC

Common mode output voltage¶

R54

Ω or 100 Ω

See Figure 1

+3

V

VOC

Common-mode output voltage¶

RL = 54 Ω or 100 Ω,

See Figure 1

–1

V

∆|VOC|

Change in magnitude of common-mode output

±02

V

∆|VOC|

Change in magnitude of common mode out ut

voltage§

±0.2

V

IO

Output current with power off

VCC = 0,

VO = – 7 V to 12 V

±100

µA

IOZ

High-impedance-state output current

VO = – 7 V to 12 V

±100

µA

IIH

High-level input current

VI = 2.7 V

20

µA

IIL

Low-level input current

VI = 0.5 V

– 360

µA

VO = – 7 V

– 180

IOS

Short-circuit output current

VO = VCC

180

mA

VO = 12 V

500

ICC

Supply current (all drivers)

No load

Outputs enabled

38

60

mA

ICC

Supply current (all drivers)

No load

Outputs disabled

18

40

mA

† All typical values are at VCC = 5 V and TA = 25°C.

‡ The minimum VOD2 with a 100-Ω load is either 1/2 VOD1 or 2 V, whichever is greater.

§

∆|VOD| and ∆|VOC| are the changes in magnitude of VOD and VOC, respectively, that occur when the input is changed from a high level to a low

level.

¶ In ANSI Standard EIA/TIA-422-B, VOC, which is the average of the two output voltages with respect to ground, is called output offset voltage,

VOS.

NOTE 2: See EIA Standard RS-485.

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

td(OD)

Differential-output delay time

RL =54 Ω

See Figure 2

45

65

ns

tt(OD)

Differential-output transition time

RL = 54 Ω,

See Figure 2

80

120

ns

tPZH

Output enable time to high level

RL = 110 Ω,

See Figure 3

80

120

ns

tPZL

Output enable time to low level

RL = 110 Ω,

See Figure 4

55

80

ns

tPHZ

Output disable time from high level

RL = 110 Ω,

See Figure 3

75

115

ns

tPLZ

Output disable time from low level

RL = 110 Ω,

See Figure 3

18

30

ns