SN75ALS191

DUAL DIFFERENTIAL LINE DRIVER

SLLS032B – DECEMBER 1987 – REVISED MAY 1995

3

POST OFFICE BOX 655303

electrical characteristics over operating free-air temperature range (unless otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP†

MAX

UNIT

VIK

Input clamp voltage

VCC = 4.75 V,

II = –18 mA

–1

– 1.2

V

V

High level output voltage

VCC = 4.75 V,

VIH = 2 V,

IOH = – 10 mA

2.5

3.3

V

VOH

High-level output voltage

VCC 4.75 V,

VIH 2 V,

VIL = 0.8 V

IOH = – 40 mA

2

V

VOL

Low-level output voltage

VCC = 4.75 V,

VIH = 2 V,

IOL = 40 mA

VIL = 0.8 V,

0.5

V

|VOD1|

Differential output voltage

VCC = 5.25 V,

IO = 0

2 VOD2

V

|VOD2|

Differential output voltage

2

V

∆ |VOD|

Change in magnitude of

differential output voltage ‡

VCC = 4.75 V to 5.25 V,

RL = 100 Ω,

± 0.4

V

VOC

Common-mode output voltage§

CC

,

See Figure 1

L

,

3

V

∆ |VOC|

Change in magnitude of

common-mode output voltage ‡

± 0.4

V

VO = 6 V

0.1

100

IO

Output current with power off

VCC = 0

VO = – 0.25 V

– 0.1

– 100

µA

VO = – 0.25 V to 6 V

±100

II

Input current

VCC = 5.25 V,

VI = 5.5 V

50

µA

IIH

High-level input current

VCC = 5.25 V,

VI = 2.7 V

25

µA

IIL

Low-level input current

VCC = 5.25 V,

VI = 0.5 V

200

µA

IOS

Short-circuit output current¶

VCC = 5.25 V,

VO = 0

–50

– 150

mA

ICC

Supply current (all drivers)

VCC = 5.25 V,

No load,

All inputs at 0 V

32

40

mA

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

‡ | 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.

¶ Only one output at a time should be shorted, and duration of the short circuit should not exceed one second.

PARAMETER

TEST CONDITIONS

MIN

TYP#

MAX

UNIT

td(OD)

Differential-output delay time

3.5

7

ns

tt(OD)

Differential-output transition time

CL = 15 pF,

RL = 100 Ω,

See Figure 2

3.5

7

ns

Skew

1.5

4

ns

# Typical values are at TA = 25°C.