LT1381IS Linear Technology, LT1381IS Datasheet - Page 3

• Manufacturer Part Number: LT1381IS
• Description: IC DVR/RCVR 5V RS232 DUAL 16SOIC
• Manufacturer: Linear Technology
• Type: Transceiverr

Specifications of LT1381IS

• Number Of Drivers/receivers: 2/2
• Protocol: RS232
• Voltage - Supply: 4.5 V ~ 5.5 V
• Mounting Type: Surface Mount
• Package / Case: 16-SOIC (3.9mm Width)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

TYPICAL PERFOR A CE CHARACTERISTICS
ELECTRICAL C
PARAMETER
Receiver
Input Voltage Thresholds
Hysteresis
Input Resistance
Output Voltage
Output Short-Circuit Current
Propagation Delay
The
temperature range.
Note 1: Absolute Maximum Ratings are those values beyond which the life
of the device may be impaired.
Note 2: Testing done at V
Note 3: Supply current is measured as the average over several charge
pump cycles. C
driver inputs tied high.
9.0
8.5
8.0
7.5
7.0
6.5
6.0
5.5
5.0
denotes specifications which apply over the full operating
Driver Maximum Output Voltage
vs Load Capacitance
0
2 DRIVERS LOADED
1
2
+
LOAD CAPACITANCE (nF)
= C
3
–
= C1 = C2 = 0.1 F. All outputs are open, with all
4
CC
5
120k BAUD
20k BAUD
60k BAUD
= 5V, unless otherwise specified.
HARA TERISTICS
6
7
W U
8
LT1381 • TPC01
C
9
CONDITIONS
Input Low Threshold (V
Input High Threshold (V
(Note 6)
Output Low, I
Output High, I
Sinking Current, V
Sourcing Current, V
Output Transition t
Output Transition t
10
–4.0
–4.5
–5.0
–5.5
–6.0
–6.5
–7.0
OUT
OUT
0
= – 1.6mA
Driver Minimum Output Voltage
vs Load Capacitance
= 160 A (V
OUT
HL
LH
2 DRIVERS LOADED
OUT
1
High-to-Low (Note 5)
Low-to-High
= V
OUT
= 0V
OUT
(Note 2)
2
CC
LOAD CAPACITANCE (nF)
= High)
= Low)
CC
3
= 5V)
4
5
Note 4: 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 5: 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 6: Tested at V
120k BAUD
60k BAUD
20k BAUD
6
7
8
LT1381 • TPC02
9
10
IN
= 10V.
–10
10
–2
–4
–6
–8
8
6
4
2
0
HL
–55
Driver Output Voltage
R
= 1.4V to 0V and t
MIN
0.8
0.1
3.5
L
10
3
= 3k
–25
HL
L
= 3k and C
L
= 1.3V to 2.4V and t
0
– 20
= 51pF. Trigger points are
TEMPERATURE (°C)
TYP
250
350
1.3
1.7
0.4
0.2
4.2
OUTPUT HIGH
OUTPUT LOW
20
5
V
V
V
V
CC
CC
CC
CC
V
V
25
CC
CC
= 4.5V
= 5.5V
= 5.5V
= 4.5V
= 5V
= 5V
LH
L
50
= 51pF. Trigger
= 1.4V to 0V).
MAX
– 10
600
600
2.4
1.0
0.4
7
LT1381
75
LH
LT1381 • TPC03
100
= 1.7V
UNITS
3
mA
mA
125
k
ns
ns
V
V
V
V
V