
4
LTC1545
ELECTRICAL CHARACTERISTICS
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2: All currents into device pins are positive; all currents out of device
are negative. All voltages are referenced to device ground unless otherwise
specified.
Note 3: All typicals are given for VCC = 5V, VDD = 8V, VEE = – 7V for V.28,
– 5.5V for V.10, V.11 and TA = 25°C.
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
V.10 Driver
VO
Output Voltage
Open Circuit, RL = 3.9k
q
±4
±6V
VT
Output Voltage
RL = 450 (Figure 3)
q
±3.6
V
RL = 450 (Figure 3)
0.9VO
ISS
Short-Circuit Current
VO = GND
±150
mA
IOZ
Output Leakage Current
– 0.25V
≤ VO ≤ 0.25V, Power Off or
q
±0.1
±100
A
No-Cable Mode or Driver Disabled
tr, tf
Rise or Fall Time
RL = 450, CL = 100pF (Figures 3, 7)
2
s
tPLH
Input to Output
RL = 450, CL = 100pF (Figures 3, 7)
1
s
tPHL
Input to Output
RL = 450, CL = 100pF (Figures 3, 7)
1
s
V.10 Receiver
VTH
Receiver Input Threshold Voltage
q
– 0.25
0.25
V
VTH
Receiver Input Hysteresis
q
25
50
mV
IIN
Receiver Input Current
– 10V
≤ VA ≤ 10V
q
±0.66
mA
RIN
Receiver Input Impedance
– 10V
≤ VA ≤ 10V
q
15
30
k
tr, tf
Rise or Fall Time
(Figures 4, 8)
15
ns
tPLH
Input to Output
(Figures 4, 8)
55
ns
tPHL
Input to Output
(Figures 4, 8)
109
ns
t
Input to Output Difference,
tPLH – tPHL
(Figures 4, 8)
60
ns
V.28 Driver
VO
Output Voltage
Open Circuit
q
±10
V
RL = 3k (Figure 3)
q
±5
±8.5
V
ISS
Short-Circuit Current
VO = GND
q
±150
mA
IOZ
Output Leakage Current
– 0.25V
≤ VO ≤ 0.25V, Power Off or
q
±1
±100
A
No-Cable Mode or Driver Disabled
SR
Slew Rate
RL = 3k, CL = 2500pF (Figures 3, 7)
q
430
V/
s
tPLH
Input to Output
RL = 3k, CL = 2500pF (Figures 3, 7)
q
1.3
2.5
s
tPHL
Input to Output
RL = 3k, CL = 2500pF (Figures 3, 7)
q
1.3
2.5
s
V.28 Receiver
VTHL
Input Low Threshold Voltage
q
1.5
0.8
V
VTLH
Input High Threshold Voltage
q
2
1.6
V
VTH
Receiver Input Hysterisis
q
0.1
0.3
V
RIN
Receiver Input Impedance
– 15V
≤ VA ≤ 15V
q
357
k
tr, tf
Rise or Fall Time
(Figures 4, 8)
15
ns
tPLH
Input to Output
(Figures 4, 8)
q
60
100
ns
tPHL
Input to Output
(Figures 4, 8)
q
150
450
ns
The q denotes specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C.
VCC = 5V, VDD = 8V, VEE = – 7V for V.28, – 5.5V for V.10, V.11 (Notes 2, 3)