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SN75ALS181 Datasheet(Fiches technique) 5 Page - Texas Instruments

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Numéro de pièce SN75ALS181
Description  DIFFERENTIAL DRIVER AND RECEIVER PAIR
Télécharger  14 Pages
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Fabricant  TI [Texas Instruments]
Site Internet  http://www.ti.com
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SN75ALS181
DIFFERENTIAL DRIVER AND RECEIVER PAIR
SLLS152B – DECEMBER 1992 – REVISED APRIL 2003
5
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
DRIVER SECTION
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
VO
Output voltage
IO = 0
0
6
V
|VOD1|
Differential output voltage
IO = 0
1.5
6
V
VCC = 5 V,
1/2 VOD1
|VOD2|
Differential output voltage
CC
,
RL = 100 Ω
See Figure 1
2
V
RL = 54 Ω
1.5
2.3
5
|VOD3|
Differential output voltage
Vtest = –7 V to 12 V,
See Figure 2
1.5
5
V
∆|VOD|
Change in magnitude of differential output
voltage (see Note 6)
RL = 54 Ω or 100 Ω,
See Figure 1
±0.2
V
VOC
Common mode output voltage
RL =54 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 voltage (see Note 6)
RL = 54 Ω or 100 Ω,
See Figure 1
±0.2
V
IOZ
High-impedance-state output current
VO = –7 V to 12 V,
See Note 7
±100
µA
IIH
High-level input current
VIH = 2.4 V
20
µA
IIL
Low-level input current
VIL = 0.4 V
–100
µA
VO = –7 V
–250
IOS
Short circuit output current
VO = VCC
250
mA
IOS
Short-circuit output current
VO = 12 V
250
mA
VO = 0 V
–150
ICC
Supply current (total package)
No load
Outputs enabled
21
30
mA
ICC
Supply current (total package)
No load
Outputs disabled
14
21
mA
† All typical values are at VCC = 5 V and TA = 25°C.
NOTES:
6.
∆|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.
7. This applies for both power on and power off. Refer to TIA/EIA-485-A for exact conditions.
switching characteristics over recommended ranges of supply voltage and operating free-air
temperature (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP†
MAX
UNIT
tdD
Differential output delay time, tdDH or tdDL
RL = 54 Ω,
CL = 50 pF,
See Figure 3
9
13
20
ns
tsk(p)
Pulse skew (|tdDH – tdDL|)
RL = 54 Ω,
CL = 50 pF,
See Figure 3
1
8
ns
tt
Differential output transition time
RL = 54 Ω,
CL = 50 pF,
See Figure 3
3
10
16
ns
tPZH
Output enable time to high level
RL = 110 Ω,
See Figure 4
36
53
ns
tPZL
Output enable time to low level
RL = 110 Ω,
See Figure 5
39
56
ns
tPHZ
Output disable time from high level
RL = 110 Ω,
See Figure 4
20
31
ns
tPLZ
Output disable time from low level
RL = 110 Ω,
See Figure 5
9
20
ns
† All typical values are at VCC = 5 V and TA = 25°C.




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