3
LTC1543
sn1534 1543fas
The q denotes specifications which apply over the full operating tempera-
ture range. VCC = 5V (Notes 2, 3)
ELECTRICAL CHARACTERISTICS
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
IIN
Logic Input Current
D1, D2, D3
q
±10
A
M0, M1, M2, DCE = GND (LTC1543C)
q
– 100
– 50
– 30
A
M0, M1, M2, DCE = GND (LTC1543I)
q
– 120
– 50
– 30
A
M0, M1, M2, DCE = VCC
q
±10
A
VOH
Output High Voltage
IO = – 4mA
q
3
4.5
V
VOL
Output Low Voltage
IO = 4mA
q
0.3
0.8
V
IOSR
Output Short-Circuit Current
0V
≤ VO ≤ VCC
q
–50
50
mA
IOZR
Three-State Output Current
M0 = M1 = M2 = VCC, 0V ≤ VO ≤ VCC
±1
A
V.11 Driver
VODO
Open Circuit Differential Output Voltage
RL = 1.95k (Figure 1)
q
± 5V
VODL
Loaded Differential Output Voltage
RL = 50 (Figure 1)
0.5VODO
0.67VODO
V
RL = 50 (Figure 1)
q
±2V
VOD
Change in Magnitude of Differential
RL = 50 (Figure 1)
q
0.2
V
Output Voltage
VOC
Common Mode Output Voltage
RL = 50 (Figure 1)
q
3V
VOC
Change in Magnitude of Common Mode
RL = 50 (Figure 1)
q
0.2
V
Output Voltage
ISS
Short-Circuit Current
VOUT = GND
150
mA
IOZ
Output Leakage Current
– 0.25V
≤ VO ≤ 0.25V, Power Off or
q
± 1
±100
A
No-Cable Mode or Driver Disabled
tr, tf
Rise or Fall Time
(Figures 2, 6) (LTC1543C)
q
215
25
ns
(Figures 2, 6) (LTC1543I)
q
215
35
ns
tPLH
Input to Output
(Figures 2, 6) (LTC1543C)
q
20
40
65
ns
(Figures 2, 6) (LTC1543I)
q
20
40
75
ns
tPHL
Input to Output
(Figures 2, 6) (LTC1543C)
q
20
40
65
ns
(Figures 2, 6) (LTC1543I)
q
20
40
75
ns
t
Input to Output Difference,
tPLH – tPHL
(Figures 2, 6) (LTC1543C)
q
03
12
ns
(Figures 2, 6) (LTC1543I)
q
03
17
ns
tSKEW
Output to Output Skew
(Figures 2, 6)
3
ns
V.11 Receiver
VTH
Input Threshold Voltage
– 7V
≤ VCM ≤ 7V
q
– 0.2
0.2
V
VTH
Input Hysteresis
– 7V
≤ VCM ≤ 7V
q
15
40
mV
IIN
Input Current (A, B)
– 10V
≤ VA,B ≤ 10V
q
±0.66
mA
RIN
Input Impedance
– 10V
≤ VA,B ≤ 10V
q
15
30
k
tr, tf
Rise or Fall Time
(Figures 2, 7)
15
ns
tPLH
Input to Output
(Figures 2, 7) (LTC1543C)
q
50
80
ns
(Figures 2, 7) (LTC1543I)
q
50
90
ns
tPHL
Input to Output
(Figures 2, 7) (LTC1543C)
q
50
80
ns
(Figures 2, 7) (LTC1543I)
q
50
90
ns
t
Input to Output Difference,
tPLH – tPHL
(Figures 2, 7) (LTC1543C)
q
04
16
ns
(Figures 2, 7) (LTC1543I)
q
04
21
ns
V.35 Driver
VOD
Differential Output Voltage
Open Circuit
q
±10.00
V
With Load, – 4V
≤ VCM ≤ 4V (Figure 3)
q
±0.44
±0.55
±0.66
V
IOH
Transmitter Output High Current
VA, B = 0V
q
– 13
– 11
– 9.0
mA
IOL
Transmitter Output Low Current
VA, B = 0V
q
9.0
11
13
mA