www.德州仪器.com
DRIVERELECTRICALCHARACTERISTICS
sn65hvd30-sn65hvd35
sn65hvd36-sn65hvd39
SLLS665–SEPTEMBER2005
overrecommendedoperatingconditionsunlessotherwisenoted
PARAMETERTESTCONDITIONSMINTYP
(1)
MAXUNIT
V
i(k)
InputclampvoltageI
I
=–18ma–1.5
I
O
=02.5v
CC
R
L
=54
Ω
,看Figure1
1.52.0
(rs-485)
|V
od(ss)
|steady-statedifferentialoutputvoltage
R
L
=100
Ω
,看Figure1
(2)
2.02.3
(rs-422)
V
测试
=–7vto12v,
1.5
看Figure2
changeinmagnitudeofsteady-stater
L
=54
Ω
,看Figure1
∆
|V
od(ss)
|–0.20.2
differentialoutputvoltagebetweenstatesandFigure2
DifferentialOutputVoltageovershootR
L
=54
Ω
,c
L
=50pf,
V
V
od(环绕)
0.05|v
od(ss)
|
andundershootSeeFigure5和Figure3
顶峰-至-顶峰
hvd30,hvd33,
V
oc(pp)
一般-mode0.5
hvd36,hvd38
outputvoltage
看Figure4
hvd31,hvd34,
hvd37,hvd39,0.25
hvd32,hvd35
稳步的-statecommon-模式
V
oc(ss)
1.62.3
outputvoltage
看Figure4
changeinsteady-statecommon-模式
∆
V
oc(ss)
–0.050.05
outputvoltage
V
CC
=0v,v
Z
orV
Y
=12v,
90
Otherinputat0V
V
CC
=0v,v
Z
orV
Y
=–7v,
–10
Otherinputat0V
高-impedancestate
V
CC
=5vor0v,
I
z(z)
orI
y(z)
µ
一个
outputcurrent
DE=0V90
hvd33,hvd34,
V
Z
orV
Y
=12V
Otherinput
hvd35,hvd38,
at0V
V
CC
=5vor0v,
HVD39
DE=0V–10
V
Z
orV
Y
=–7V
V
Z
orV
Y
=–7V–250250
Otherinput
I
z(s)
orI
y(s)
ShortCircuitoutputCurrentmA
at0V
V
Z
orV
Y
=12V–250250
I
I
inputcurrentd,de0100µa
DifferentialoutputV
OD
=0.4sin(4e6
π
t)+0.5v,
C
(od)
16pF
capacitanceDEat0V
(1)alltypicalvaluesareat25
°
candwitha3.3-vsupply.
(2)v
CC
is3.3vdc±5%
4