LTC1688 Linear Technology, LTC1688 Datasheet - Page 3

• Manufacturer Part Number: LTC1688
• Description: 100Mbps RS485 Hot Swapable Quad Drivers
• Manufacturer: Linear Technology

DC ELECTRICAL CHARACTERISTICS
SWITCHING CHARACTERISTICS
temperature range, otherwise specifications are at T
temperature range, otherwise specifications are at T
SYMBOL
V
t
t
t
t
t
t
t
C
V
t
t
t
t
t
t
t
C
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
SYMBOL
V
V
I
I
I
I
I
PLH
SKEW
r
ZH
ZL
LZ
PLH
SKEW
r
ZH
ZL
LZ
IN1
OZ
DD
OSD1
OSD2
HZ
HZ
DD
, t
L(MAX)
DD
, t
L(MAX)
IH
IL
V
f
f
, t
, t
OC
= 5V, T
= 3V, T
PHL
PHL
A
A
PARAMETER
Driver Input-to-Output Propagation Delay
Driver Output-to-Output Skew
Driver Rise/Fall Time
Driver Enable to Output High
Driver Enable to Output Low
Driver Disable from Low
Driver Disable from High
Maximum Output Capacitive Load
Maximum Data Rate
Maximum Driver Input Rise/Fall Time
Driver Input-to-Output Propagation Delay
Driver Output-to-Output Skew
Driver Rise/Fall Time
Driver Enable to Output High
Driver Enable to Output Low
Driver Disable from Low
Driver Disable from High
Maximum Output Capacitive Load
Maximum Data Rate
Maximum Driver Input Rise/Fall Time
PARAMETER
Change in Magnitude of Driver Common
Mode Output Voltage for Complementary
Output States
Input High Voltage
Input Low Voltage
Input Current
Three-State (High Impedance)
Output Current
Supply Current of Entire Device
Driver Short-Circuit Current, V
Driver Short-Circuit Current, V
= 25 C, Unless Otherwise Noted (Note 2)
= 25 C, Unless Otherwise Noted (Note 2)
U
OUT
OUT
= HIGH
= LOW
CONDITIONS
R
Figures 2, 4
R
Figures 2, 4
R
Figures 2, 4
C
C
C
C
(Note 3)
(Note 3)
(Note 3)
R
Figures 2, 4
R
Figures 2, 4
R
Figures 2, 4
C
C
C
C
(Note 3)
(Note 3)
CONDITIONS
R = 25 or 50 , Figure 1
EN, ENB, EN12, EN34, DI
EN, ENB, EN12, EN34, DI
EN, ENB, EN12, EN34, DI (Note 3)
V
No Load, Digital Input Pins = 0V or V
V
V
L
L
L
L
L
L
L
L
OUT
OUT
OUT
DIFF
DIFF
DIFF
DIFF
DIFF
DIFF
A
A
= 25pF, S2 Closed, Figures 3, 5
= 25pF, S1 Closed, Figures 3, 5
= 15pF, S1 Closed, Figures 3, 5
= 15pF, S2 Closed, Figures 3, 5
= 25pF, S2 Closed, Figures 3, 5
= 25pF, S1 Closed, Figures 3, 5
= 15pF, S1 Closed, Figures 3, 5
= 15pF, S2 Closed, Figures 3, 5
= 25 C.
= 25 C.
= – 7V to 10V (Note 3)
= – 7V to 8V (Note 3)
= – 7V to 8V (Note 3)
= 50 , C
= 50 , C
= 50 , C
= 50 , C
= 50 , C
= 50 , C
The
L1
L1
L1
L1
L1
L1
denotes the specifications which apply over the full operating
The
= C
= C
= C
= C
= C
= C
L2
L2
L2
L2
L2
L2
Note 2: All currents into the device pins are positive; all currents out of the
device pins are negative.
Note 3: Guaranteed by design or correlation, but not tested.
= 25pF,
= 25pF,
= 25pF,
= 25pF,
= 25pF,
= 25pF,
denotes the specifications which apply over the full operating
DD
LTC1688/LTC1689
MIN
MIN
100
1.4
4
TYP
500
TYP
0.1
10
10
25
25
11
25
25
50
50
50
8
2
1
4
5
1
MAX
MAX
200
500
200
500
0.5
12
35
35
65
65
200
20
20
1
UNITS
UNITS
Mbps
Mbps
3
mA
mA
mA
ns
ps
ns
ns
ns
ns
ns
pF
ns
ns
ns
ns
ns
ns
ns
ns
pF
ns
V
V
V
A
A