3
LTC1543
sn1534 1543fas
The ● denotes specifications which apply over the full operating tempera-
ture range. V
CC
= 5V (Notes 2, 3)
ELECTRICAL CHARACTERISTICS
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
I
IN
Logic Input Current D1, D2, D3 ● ±10 µA
M0, M1, M2, DCE = GND (LTC1543C)
● –100 –50 –30 µA
M0, M1, M2, DCE = GND (LTC1543I)
● –120 –50 –30 µA
M0, M1, M2, DCE = V
CC
● ±10 µA
V
OH
Output High Voltage I
O
= –4mA ● 3 4.5 V
V
OL
Output Low Voltage I
O
= 4mA ● 0.3 0.8 V
I
OSR
Output Short-Circuit Current 0V ≤ V
O
≤ V
CC
● –50 50 mA
I
OZR
Three-State Output Current M0 = M1 = M2 = V
CC
, 0V ≤ V
O
≤ V
CC
±1 µA
V.11 Driver
V
ODO
Open Circuit Differential Output Voltage R
L
= 1.95k (Figure 1) ● ±5V
V
ODL
Loaded Differential Output Voltage R
L
= 50Ω (Figure 1) 0.5V
ODO
0.67V
ODO
V
R
L
= 50Ω (Figure 1) ● ±2V
∆V
OD
Change in Magnitude of Differential R
L
= 50Ω (Figure 1) ● 0.2 V
Output Voltage
V
OC
Common Mode Output Voltage R
L
= 50Ω (Figure 1) ● 3V
∆V
OC
Change in Magnitude of Common Mode R
L
= 50Ω (Figure 1) ● 0.2 V
Output Voltage
I
SS
Short-Circuit Current V
OUT
= GND 150 mA
I
OZ
Output Leakage Current –0.25V ≤ V
O
≤ 0.25V, Power Off or ● ±1 ±100 µA
No-Cable Mode or Driver Disabled
t
r
, t
f
Rise or Fall Time (Figures 2, 6) (LTC1543C) ● 21525 ns
(Figures 2, 6) (LTC1543I)
● 21535 ns
t
PLH
Input to Output (Figures 2, 6) (LTC1543C) ● 20 40 65 ns
(Figures 2, 6) (LTC1543I)
● 20 40 75 ns
t
PHL
Input to Output (Figures 2, 6) (LTC1543C) ● 20 40 65 ns
(Figures 2, 6) (LTC1543I) ● 20 40 75 ns
∆t Input to Output Difference, t
PLH
– t
PHL
(Figures 2, 6) (LTC1543C) ● 0312 ns
(Figures 2, 6) (LTC1543I) ● 0317 ns
t
SKEW
Output to Output Skew (Figures 2, 6) 3 ns
V.11 Receiver
V
TH
Input Threshold Voltage –7V ≤ V
CM
≤ 7V ● –0.2 0.2 V
∆V
TH
Input Hysteresis –7V ≤ V
CM
≤ 7V ● 15 40 mV
I
IN
Input Current (A, B) –10V ≤ V
A,B
≤ 10V ● ±0.66 mA
R
IN
Input Impedance –10V ≤ V
A,B
≤ 10V ● 15 30 kΩ
t
r
, t
f
Rise or Fall Time (Figures 2, 7) 15 ns
t
PLH
Input to Output (Figures 2, 7) (LTC1543C) ● 50 80 ns
(Figures 2, 7) (LTC1543I) ● 50 90 ns
t
PHL
Input to Output (Figures 2, 7) (LTC1543C) ● 50 80 ns
(Figures 2, 7) (LTC1543I) ● 50 90 ns
∆t Input to Output Difference, t
PLH
– t
PHL
(Figures 2, 7) (LTC1543C) ● 0416 ns
(Figures 2, 7) (LTC1543I) ● 0421 ns
V.35 Driver
V
OD
Differential Output Voltage Open Circuit ● ±10.00 V
With Load, –4V ≤ V
CM
≤ 4V (Figure 3) ● ±0.44 ±0.55 ±0.66 V
I
OH
Transmitter Output High Current V
A, B
= 0V ● –13 –11 –9.0 mA
I
OL
Transmitter Output Low Current V
A, B
= 0V ● 9.0 11 13 mA
