3
LT1080/LT1081
10801fe
ELECTRICAL C
C
HARA TERISTICS The q denotes the specifications which apply over the full operating
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Driver
Output Voltage Swing
Load = 3k to GND Both Outputs
Positive
q
5
7.3
V
Negative
q
–5
–6.5
V
Logic Input Voltage Level
Input Low Level (VOUT = High)
q
1.4
0.8
V
Input High Level (VOUT = Low)
q
2
1.4
V
Logic Input Current
VIN ≥ 2V
q
520
A
VIN ≤ 0.8V
q
520
A
Output Short-Circuit Current
Sourcing Current, VOUT = 0V
9
12
mA
Sinking Current, VOUT = 0V
–9
–12
mA
Output Leakage Current
SHUTDOWN (Note 3), VOUT = ±30V
q
10
100
A
Data Rate (Note 6)
RL = 3k, CL = 2500pF
120
kBd
RL = 3k, CL = 1000pF
250
kBd
Slew Rate
RL = 3k, CL = 51pF
4
15
30
V/
s
Receiver
Input Voltage Thresholds
Input Low Threshold
Commercial
q
0.8
1.3
V
Industrial and Military
q
0.2
1.3
V
Input High Threshold
Commercial
q
1.7
2.4
V
Industrial and Military
q
1.7
3.0
V
Hysteresis
q
0.1
0.4
1
V
Input Resistance
VIN = ±10V
3
5
7
k
Output Voltage
Output Low, IOUT = –1.6mA
q
0.2
0.4
V
Output High, IOUT = 160A (VCC = 5V)
q
3.5
4.8
V
Output Short-Circuit Current
Sinking Current, VOUT = VCC
–10
–20
mA
Sourcing Current, VOUT = 0V
0.6
1
mA
Output Leakage Current
SHUTDOWN (Note 3), 0V
≤ VOUT ≤ VCC
q
110
A
Power Supply Generator (Note 4)
V+ Output Voltage
IOUT = 0mA
8.0
9.0
V
IOUT = 10mA
7.0
8.0
V
IOUT = 15mA
6.5
7.5
V
V– Output Voltage
IOUT = 0mA
–7.5
–8.5
V
IOUT = –10mA
–5.5
–6.5
V
IOUT = –15mA
–5.0
–6.0
V
Supply Current
q
12
22
mA
Supply Leakage Current (VCC)
SHUTDOWN (Note 3), LT1080 Only
q
1
100
A
ON/OFF Pin Current
0V
≤ VON/OFF ≤ 5V, LT1080 Only
q
–15
80
A
Supply Rise Time
(Note 5), LT1080 Only
1
ms
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2: These parameters apply for 4.5V
≤ VCC ≤ 5.5V and VON/OFF = 3V,
unless otherwise specified.
Note 3: VON/OFF = 0.4V for –55°C ≤ TA ≤ 50°C, and VON/OFF = 0.2V for
50
°C ≤ TA ≤ 125°C. (LT1080 only)
Note 4: Unless otherwise specified, VCC = 5V, external loading of V
+ and
V– equals zero and the driver outputs are low (inputs high).
Note 5: Time from either SHUTDOWN high or power on until V+
≥ 6V and
V–
≤ –6V. All external capacitors are 1F.
Note 6: Data rate operation guaranteed by slew rate, short-circuit current
and propagation delay tests.
temperature range, otherwise specifications are at TA = 25°C. (Note 2)