LT1180A Linear Technology, LT1180A Datasheet - Page 3

• Manufacturer Part Number: LT1180A
• Description: Low Power 5V RS232 Dual Driver/Receiver with 0.1uF Capacitors
• Manufacturer: Linear Technology

ELECTRICAL C
PARAMETER
Driver
Output Voltage Swing
Logic Input Voltage Level
Logic Input Current
Output Short-Circuit Current
Output Leakage Current
Date Rate (Note 7)
Slew Rate
Propagation Delay
Receiver
Input Voltage Thresholds
Hysteresis
Input Resistance
Output Leakage Current
Output Voltage
Output Short-Circuit Current
Propagation Delay
The
range (0 C T
industrial grade.
Note 1: Absolute Maximum Ratings are those values beyond which the life
of the device may be impaired.
Note 2: Testing done at V
specified.
Note 3: Supply current is measured as the average over several charge
pump cycles. C
driver inputs tied high.
Note 4: Supply current measurements in SHUTDOWN are performed with
V
ON/OFF
denotes specifications which apply over the operating temperature
0.1V.
A
+
= C
70 C for commercial grade, and – 40 C T
–
= C1 = C2 = 0.1 F. All outputs are open, with all
CC
= 5V and V
HARA TERISTICS
ON/OFF
C
CONDITIONS
Load = 3k to GND
Input Low Level (V
Input High Level (V
0.8V V
V
Shutdown V
R
R
R
R
Output Transition t
Output Transition t
Input Low Threshold (V
Input High Threshold (V
Input Low
Input High
V
Shutdown (Note 4) 0 V
Output Low, I
Output High, I
Sinking Current, V
Sourcing Current, V
Output Transition t
Output Transition t
OUT
L
L
L
L
IN
= 3k, C
= 3k, C
= 3k, C
= 3k, C
= 3V, unless otherwise
= 10V
= 0V
IN
L
L
L
L
= 2500pF
= 1000pF
= 51pF
= 2500pF
OUT
2.0V
OUT
OUT
= 30V (Note 4)
= – 1.6mA
= 160 A (V
OUT
HL
LH
HL
LH
OUT
A
OUT
OUT
High-to-Low (Note 5)
Low-to-High
High-to-Low (Note 6)
Low-to-High
= V
85 C for
= High)
= Low)
OUT
= 0V
OUT
(Note 2)
OUT
CC
= High)
= Low)
CC
V
= 5V)
CC
Note 5: For driver delay measurements, R
points are set between the driver’s input logic threshold and the output
transition to the zero crossing (t
Note 6: For receiver delay measurements, C
set between the receiver’s input logic threshold and the output transition
to standard TTL/CMOS logic threshold (t
to 0.8V).
Note 7: Data rate operation guaranteed by slew rate, short-circuit current
and propagation delay tests.
Positive
Negative
C Grade
C Grade
I, M Grade
I, M Grade
LT1180A/LT1181A
HL
= 1.4V to 0V and t
MIN
120
250
5.0
2.0
0.8
0.2
0.1
3.5
10
4
3
9
HL
L
= 3k and C
L
= 1.3V to 2.4V and t
= 51pF. Trigger points are
– 6.3
TYP
–20
250
350
1.4
1.4
0.6
0.5
1.3
1.7
1.3
1.7
0.4
0.2
4.2
17
10
15
7.5
5
7
5
1
20
LH
L
= 51pF. Trigger
= 1.4V to 0V).
MAX
– 5.0
– 10
600
100
600
0.8
1.3
1.3
2.4
3.0
1.0
0.4
20
30
10
7
LH
= 1.7V
UNITS
kBaud
kBaud
3
V/ s
V/ s
mA
mA
mA
k
ns
ns
V
V
V
V
A
A
V
V
V
V
V
A
V
V
s
s