參數(shù)資料
型號： SN751177NS
廠商： Texas Instruments, Inc.
英文描述： DUAL DIFFERENTIAL DRIVERS AND RECEIVERS
中文描述： 雙差分驅動器和接收
文件頁數(shù)： 6/11頁
文件大小： 155K
代理商： SN751177NS
SN751177, SN751178
DUAL DIFFERENTIAL DRIVERS AND RECEIVERS
SLLS059D – FEBRUARY 1990 – REVISED MAY 1999
6
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
DRIVER SECTIONS
electrical characteristics over recommended ranges of supply voltage and operating free-air
temperature (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
VIK
VOH
VOL
|VOD1|
Input clamp voltage
II = –18 mA
VIH = 2 V,
VIH = 2 V,
IO = 0
–1.5
V
High-level output voltage
VIL = 0.8 V,
VIL = 0.8 V,
IOH = –33 mA
IOH = 33 mA
3.7
V
Low-level output voltage
1.1
V
Differential output voltage
1.5
6
V
RL= 100
RL = 100
,
See Figure 1
2 or
1/2 VOD1
1.5
|VOD2|
Differential output voltage
V
RL = 54
,
See Note 4
See Figure 1
5
VOD3
Differential output voltage
1.5
5
V
|VOD|
Change in magnitude of
differential output voltage (see Note 5)
±
0.2
V
VOC
Common-mode output voltage
RL = 54
or 100
,
See Figure 1
–1§
3
V
|VOC|
Change in magnitude of
common-mode output voltage (see Note 5)
±
0.2
V
IO
IOZ
IIH
IIL
Output current with power off
VCC = 0,
VO = –7 V to 12 V
VIH = 2.7 V
VIL = 0.4 V
VO = –7 V
VO = VCC
VO = 12 V
VO = –7 V to 12 V
±
100
±
100
20
μ
A
μ
A
μ
A
μ
A
High-impedance-state output current
High-level input current
Low-level input current
–100
–250
IOS
Short-circuit output current (see Note 6)
250
mA
250
ICC
Supply current
No load
Outputs enabled
Outputs disabled
80
50
110
80
mA
All typical values are at VCC = 5 V and TA = 25
°
C.
The minimum VOD2 with a 100-
load is either 1/2 VOD1 or 2 V, whichever is greater.
§The algebraic convention, where the less positive (more negative) limit is designated as minimum, is used in this data sheet for common-mode
output and threshold voltage levels only.
NOTES:
4. See TIA/EIA-485-A Figure 3.5, Test Termination Measurement 2
5.
|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.
6. Not more than one output should be shorted at a time, and the duration of the short circuit should not exceed one second.
switching characteristics at V
CC
= 5 V, C
L
= 50 pF, T
A
= 25
°
C
PARAMETER
TEST CONDITIONS
MIN
TYP
20
MAX
UNIT
ns
td(OD)
tt(OD)
tPLH
tPHL
tPZH
tPZL
tPHZ
tPLZ
Differential output delay time
RL= 54
RL = 54
,
See Figure 3
25
Differential output transition time
27
35
ns
Propagation delay time, low- to high-level output
Propagation delay time, high- to low-level output
RL= 27
RL = 27
,
See Figure 4
20
25
ns
20
25
ns
Output enable time to high level
RL = 110
,
RL = 110
,
RL = 110
,
RL = 110
,
See Figure 5
80
120
ns
Output enable time to low level
See Figure 6
40
60
ns
Output disable time from high level
See Figure 5
90
120
ns
Output disable time from low level
See Figure 6
30
45
ns
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SN751178 制造商:TI 制造商全稱:Texas Instruments 功能描述:DUAL DIFFERENTIAL DRIVERS AND RECEIVERS
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