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LT1039ISW#PBF

P1-P3P4-P6P7-P9P10-P12
1
LT1039/LT1039-16
1039fd
FEATURES
DESCRIPTIO
U
APPLICATIO S
U
TYPICAL APPLICATIO
U
RS232 Driver/Receiver
with Shutdown
The LT
®
1039 is a triple RS232 driver/receiver that in-
cludes shutdown. Each receiver will accept up to ±30V
input and can drive either TTL or CMOS logic. The RS232
drivers accept TTL logic inputs and output RS232 voltage
levels. The outputs are fully protected against overload
and can be shorted to ground or up to ±30V without
damage to the drivers. Additionally, when the system is
shut down or power is off, the outputs are in a high
impedance state allowing data line sharing. Bipolar cir-
cuitry makes this driver/receiver exceptionally rugged
against overloads and immune to latchup.
A BIAS pin allows one receiver to be kept on while the rest
of the part is shut down.
The LT1039 is also available in the 16-pin version,
without shutdown or BIAS pin functions.
For applications requiring operation from a single 5V
supply, see the LT1080/LT1081, LT1180A/LT1181A and
LT1130A data sheets. For applications requiring 15kV
ESD, see the LT1039A.
, LTC and LT are registered trademarks of Linear Technology Corporation.
■
Operates from ±5V to ±15V Supplies
■
Fully Protected Against Overload
■
Outputs Can Be Driven ±30V Without Damage
■
Three-State Outputs; Outputs Open When Off
■
Bipolar Circuit—No Latchup
■
±30V Input Range
■
Triple Driver/Receiver
■
No Supply Current in Shutdown
■
30kΩ Input Impedance
■
Meets All RS232 Specifications
■
16-Pin Version—Pin Compatible with MC145406
■
Available in SO Package
■
15kV ESD: LT1039A
■
RS232 Interface
■
Terminals
■
Modems
Driver Output Swing
30k
LT1039
V
+
1
2
3
4
5
6
7
8
9
18
17
16
15
14
13
12
11
10
V
CC
V
–
GND
12V
BIAS*
RS232 IN
ON/OFF
5V
LOGIC
LOGIC
LOGIC
LOGIC
LOGIC
LOGIC
*BIAS PIN USED
TO KEEP THE
RECEIVER ON
WHILE IN SHUTDOWN
RS232 IN
RS232 OUT
RS232 OUT
RS232 OUT
RS232 IN
–12V
1039 TA01
30k
30k
OUTPUT CURRENT (mA)
0
OUTPUT VOLTAGE (V)
–0.5
V
+
8
1039 TA02
0.5
1.0
1.5
V
–
2
4
6
10
NEGATIVE
POSITIVE
2
LT1039/LT1039-16
1039fd
ABSOLUTE MAXIMUM RATINGS
W
WW
U
PACKAGE/ORDER INFORMATION
W
U
U
ORDER PART
NUMBER
ORDER PART
NUMBER
LT1039CN16
LT1039CSW16
LT1039CN
LT1039CSW
LT1039IN
LT1039ISW
1
2
3
4
5
6
7
8
9
TOP VIEW
SW PACKAGE
18-LEAD PLASTIC SO WIDE
J PACKAGE
18-LEAD CERDIP
N PACKAGE
18-LEAD PDIP
18
17
16
15
14
13
12
11
10
V
+
BIAS
REC1 IN
TR1 OUT
REC2 IN
TR2 OUT
REC3 IN
TR3 OUT
V
–
V
CC
ON/OFF
REC1 OUT
TR1 IN
REC2 OUT
TR2 IN
REC3 OUT
TR3 IN
GND
T
JMAX
= 150°C, θ
JA
= 120°C/W(N)
T
JMAX
= 150°C, θ
JA
= 120°C/ W(SW)
ELECTRICAL CHARACTERISTICS
PARAMETER CONDITIONS MIN TYP MAX UNITS
Driver V
+
= 12V, V
–
= –12V, V
ON/OFF
= 2.5V (Note 2)
Output Voltage Swing Load = 3k to Ground
Positive
● V
+
– 0.4 V
+
– 0.1 V
Negative
● V
–
+ 1.5 V
–
+ 1.0 V
Logic Input Voltage Levels Input Low Level (V
OUT
= High) ● 1.4 0.8 V
Input High Level (V
OUT
= Low) ● 2.0 1.4 V
Logic Input Current V
IN
≥ 2.0V 1 20 µA
V
IN
≤ 0.8V 5 20 µA
Output Short-Circuit Current Sourcing Current, V
OUT
= 0V 5 15 mA
Sinking Current, V
OUT
= 0V –5 –15 mA
Output Leakage Current Shutdown (Notes 3, 4), V
OUT
= ±18V, V
IN
= 0V ● 10 (25°C) 200 µA
Supply Leakage Current Shutdown (Note 3) ● 1 (25°C) 100 µA
Slew Rate R
L
= 3k, C
L
= 51pF 4 15 30 V/µs
Supply Current V
OUT
= Low 4 8 mA
(Note 1)
The ● denotes specifications which apply over the full operating temperature range, otherwise specifications are at T
A
= 25°C.
T
JMAX
= 150°C, θ
JA
= 100°C/ W (J)
LT1039MJ16
OBSOLETE PACKAGES
Consider the N Package for Alternate Source
T
JMAX
= 150°C, θ
JA
= 100°C/ W(J)
LT1039CJ
LT1039MJ
1
2
3
4
5
6
7
8
TOP VIEW
N PACKAGE
16-LEAD PDIP
SW PACKAGE
16-LEAD PLASTIC SO WIDE
J PACKAGE
16-LEAD CERDIP
16
15
14
13
12
11
10
9
V
+
REC1 IN
TR1 OUT
REC2 IN
TR2 OUT
REC3 IN
TR3 OUT
V
–
V
CC
REC1 OUT
TR1 IN
REC2 OUT
TR2 IN
REC3 OUT
TR3 IN
GND
T
JMAX
= 150°C, θ
JA
= 140°C/ W (N)
T
JMAX
= 150°C, θ
JA
= 150°C/W (SW)
CONSULT FACTORY
FOR
AVAILABILITY
Supply Voltage
Driver (V
+
, V
–
) .................................................. ±16V
Receiver (V
CC
) ....................................................... 7V
Logic Inputs ................................................... V
–
to 25V
Receiver Inputs........................................................ ±30
ON/OFF Input ............................................... GND to 12V
Driver Outputs ........................ (V
–
+ 30V) to (V
+
– 30V)
Short-Circuit Duration ..................................... Indefinite
Operating Temperature Range
LT1039C.................................................. 0°C to 70°C
LT1039I ...............................................–40°C to 85°C
LT1039M ...........................................–55°C to 125°C
Storage Temperature Range ................. –65°C to 150°C
Lead Temperature (Soldering, 10 sec).................. 300°C
3
LT1039/LT1039-16
1039fd
ELECTRICAL CHARACTERISTICS
PARAMETER CONDITIONS MIN TYP MAX UNITS
Receiver V
CC
= 5V, V
ON/OFF
= 2.5V (Note 2)
Input Voltage Thresholds Input Low Level (V
OUT
= High) ● 0.5 1.3 V
Input High Level (V
OUT
= Low) ● 1.7 2.8 V
Hysteresis ● 0.1 0.4 1.0 V
Input Resistance ● 30 kΩ
Output Voltage Output Low, I
OUT
= –1.6mA ● 0.4 0.5 V
Output High, I
OUT
= 160µA ● 3.5 4.8 V
Output Short-Circuit Current Sourcing Current, V
OUT
= 0V (Note 5) ● 0.5 1 mA
Sinking Current, V
OUT
= V
CC
● –10 mA
Output Leakage Current Shutdown (Note 2), 0V ≤ V
OUT
≤ V
CC
, V
IN
= 0V ● 110µA
Supply Current ● 47mA
Supply Leakage Current Shutdown (Note 3) ● 1 (25°C) 100 µA
ON/OFF Pin Current 0V ≤ V
ON/OFF
≤ 5V ● –15 80 µA
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device by be impaired.
Note 2: V
ON/OFF
= 5V for LT1039M grade devices.
Note 3: V
ON/OFF
= 0.4V for –55°C ≤ T
A
≤ 100°C and V
ON/OFF
= 0.2V for
100°C ≤ T
A
≤ 125°C. Does not apply to LT1039-16 part.
Note 4: For T
A
≥ 100°C, leakage current is 350µA max.
Note 5: For T
A
≤ –25°C, output source current is 0.4mA.
TYPICAL PERFORMANCE CHARACTERISTICS
U
W
Driver Output Short-Circuit Current ON/OFF Pin ThresholdsReceiver Input Thresholds
TEMPERATURE (°C)
–55
0
OUTPUT CURRENT (mA)
5
15
20
25
50
35
0
50
75
1039 G01
10
40
45
30
–25
25
100
125
SINKING
SOURCING
TEMPERATURE (°C)
–55
0.50
INPUT VOLTAGE (V)
0.75
1.25
1.50
1.75
3.00
2.25
0
50
75
1039 G02
1.00
2.50
2.75
2.00
–25
25
100
125
INPUT HIGH
INPUT LOW
TEMPERATURE (°C)
–55
0
ON/OFF PIN VOLTAGE (V)
0.5
1.5
2.0
2.5
5.0
3.5
0
50
75
1039 G03
1.0
4.0
4.5
3.0
–25
25
100
125
MINIMUM ON VOLTAGE
MINIMUM OFF VOLTAGE
The ● denotes specifications which apply over the full operating temperature range, otherwise specifications are at T
A
= 25°C.
P1-P3P4-P6P7-P9P10-P12

LT1039ISW#PBF

Mfr. #:
Buy LT1039ISW#PBF
Manufacturer:
Analog Devices Inc.
Description:
RS-232 Interface IC RS232 Drvr/Rcv w/ SD
Lifecycle:
New from this manufacturer.
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