LTC1686CS8 Просмотр технического описания (PDF) - Linear Technology
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LTC1686CS8 Datasheet PDF : 12 Pages
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LTC1686/LTC1687
DC ELECTRICAL CHARACTERISTICS VDD = 5V ±5% unless otherwise noted (Notes 2, 3).
SYMBOL PARAMETER
CONDITIONS
MIN
TYP
MAX
VOL
Receiver Output Low Voltage
IOUT = 4mA, VID = – 300mV
q
0.4
IOZR
Three-State (High Impedance) Output
0.4V ≤ VOUT ≤ 2.4V
q
–1
1
Current at Receiver
IOZD
Three-State (High Impedance) Output
Current at Driver
VOUT = – 7V to 12V
q
– 200
200
CLOAD Receiver and Driver Output Load Capacitance (Note 4)
q
500
IDD
Supply Current
No Load, Pins D, DE, RE = 0V or VDD q
7
12
IOSD1
Driver Short-Circuit Current, VOUT = HIGH VOUT = – 7V or 10V (Note 5)
q
20
IOSD2
Driver Short-Circuit Current, VOUT = LOW VOUT = – 7V or 10V (Note 5)
q
20
IOSR
Receiver Short-Circuit Current
VOUT = 0V or VDD (Note 5)
q
20
RIN
Input Resistance
– 7V ≤ VCM ≤ 12V
q
22
CIN
Input Capacitance
A, B, D, DE, RE Inputs (Note 4)
3
Open-Circuit Input Voltage
VDD = 5V (Note 4), Figure 5
q
3.2
3.3
3.4
Fail-Safe Time to Detect Fail-Safe Condition
2
Time
CMRR Receiver Input Common Mode
VCM = 2.5V, f = 26MHz
45
Rejection Ratio
UNITS
V
µA
µA
pF
mA
mA
mA
mA
kΩ
pF
V
µs
dB
U
SWITCHING CHARACTERISTICS VDD = 5V, unless otherwise noted (Notes 2, 3).
SYMBOL PARAMETER
CONDITIONS
MIN TYP MAX UNITS
tPLH, tPHL Driver Input-to-Output Propagation Delay RDIFF = 54Ω, Figures 3, 5 LTC1686C/LTC1687C q 15
18.5
22
ns
CL1 = CL2 = 100pF
LTC1686I/LTC1687I q 13
18.5
25
ns
tSKEW
Driver Output A-to-Output B Skew
RDIFF = 54Ω, CL1 = CL2 = 100pF,
Figures 3, 5
500
ps
tr, tf
Driver Rise/Fall Time
RDIFF = 54Ω, CL1 = CL2 = 100pF,
Figures 3, 5
3.5
ns
tZH
Driver Enable to Output High
CL = 100pF, S2 Closed, Figures 4, 6
q
25
50
ns
tZL
Driver Enable to Output Low
CL = 100pF, S1 Closed, Figures 4, 6
q
25
50
ns
tLZ
Driver Disable from Low
CL = 15pF, S1 Closed, Figures 4, 6
q
25
50
ns
t HZ
Driver Disable from High
CL = 15pF, S2 Closed, Figures 4, 6
q
25
50
ns
tPLH, tPHL Receiver Input-to-Output Propagation Delay CL = 15pF, Figures 3, 7
LTC1686C/LTC1687C q 15
18.5
22
ns
LTC1686I/LTC1687I q 13
18.5
25
ns
tSQD
Receiver Skew tPLH – tPHL
tZL
Receiver Enable to Output Low
tZH
Receiver Enable to Output High
tLZ
Receiver Disable from Low
t HZ
Receiver Disable from High
Maximum Receiver Input
Rise/Fall Times
CL = 15pF, Figures 3, 7
CL = 15pF, S1 Closed, Figures 2, 8
CL = 15pF, S2 Closed, Figures 2, 8
CL = 15pF, S1 Closed, Figures 2, 8
CL = 15pF, S2 Closed, Figures 2, 8
(Note 4)
500
ps
q
25
50
ns
q
25
50
ns
q
25
50
ns
q
25
50
ns
q
2000
ns
tPKG-PKG Package-to-Package Skew
CL = 15pF, Same Temperature (Note 4)
1.5
ns
3
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