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Linear Technology Electronic Components Datasheet

LT1032 Datasheet

Quad Low Power Line Driver

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FEATURES
s Low Operating Voltage: ±5V to ±15V
s 500µA Supply Current
s Zero Supply Current when Shut Down
s Outputs Can Be Driven ±30V
s Thermal Limiting
s Output “Open” when Off (Three-State)
s 10mA Output Drive
s Pinout Similar to 1488
U
APPLICATIO S
s RS232
s Power Supply Inverter
s Micropower Interface
s Level Translator
TYPICAL APPLICATIO
RS232 Line Driver
– 6V
INPUT
OUTPUT
ON/OFF
(0V TO 5V)
INPUT
OUTPUT
GND
1
2
3
4
5
6
7
LT1032
14
6V
13
STROBE*
12
INPUT
11
OUTPUT
10 RESPONSE TIME
9 CONTROL*
INPUT
8
OUTPUT
*NO CONNECTION NEEDED WHEN NOT USED
5V = ON
LT1032 • TA01
LT1032
Quad Low Power
Line Driver
DESCRIPTIO
The LT®1032 is a RS232 and RS423 line driver that
operates over a ±5V to ±15V range on low supply current
and can be shut down to zero supply current. Outputs are
fully protected from externally applied voltages of ±30V by
both current and thermal limiting. Since the output swings
to within 200mV of the positive supply and 600mV of the
negative supply, power supply needs are minimized.
Also included is a strobe pin to force all outputs low
independent of input or shutdown conditions. Further,
slew rate can be adjusted with a resistor connected to the
supply.
A major advantage of the LT1032 is the high impedance
output state when off or powered down.
For applications requiring dual or triple RS232 driver/
receiver devices, see the LT1180A (dual), LT1039A (triple)
or the LT1130A data sheets.
, LTC and LT are registered trademarks of Linear Technology Corporation.
Output Swing vs Output Current
V+
0.2
VOUT HIGH
0.4
1.0
0.8
0.6
0.4
0.2
V
0
VOUT LOW
2 4 68
OUTPUT CURRENT (mA)
10
LT1032 • TA02
1


Linear Technology Electronic Components Datasheet

LT1032 Datasheet

Quad Low Power Line Driver

No Preview Available !

LT1032
ABSOLUTE AXI U RATI GS (Note 1)
Supply Voltage ..................................................... ±15V
Logic Input Pins ............................................ V to 25V
ON/OFF Pin ................................................. GND to 15V
Output (Forced) ............................. V + 30V, V + – 30V
Response Pin ......................................................... ±6V
Short-Circuit Duration (to ±30V) .................... Indefinite
Storage Temperature Range ................ – 65°C to 150°C
Operating Temperature Range
LT1032C ............................................... 0°C to 70°C
LT1032I ........................................... – 40°C to 85°C
LT1032M ....................................... – 55°C to 125°C
C Grade Guaranteed
Functional by Design .............................. – 25°C to 85°C
Lead Temperature (Soldering, 10 sec)................. 300°C
PACKAGE/ORDER I FOR ATIO
VEE
(–15V TO –5V)
1
2
ON/OFF
(0V TO 5V)
3
4
5
6
GND 7
TOP VIEW
14
VCC
(5V TO 15V)
13 STROBE
12
11
10
RESPONSE
CONTROL
9
8
J PACKAGE
14-LEAD CERDIP
N PACKAGE
14-LEAD PDIP
TJMAX = 85°C, θJA = 100°C/W, θJC = 60°C (CJ)
TJMAX = 85°C, θJA = 100°C/W, θJC = 60°C (CN)
TJMAX = 150°C, θJA = 100°C/W, θJC = 60°C (MJ)
ORDER PART
NUMBER
LT1032CJ
LT1032CN
LT1032IN
LT1032MJ
VEE 1
2
3
ON/OFF 4
5
6
GND 7
NC 8
TOP VIEW
16 VCC
15 STROBE
14
13
12
RESPONSE
CONTROL
11
10
9 NC
SW PACKAGE
16-LEAD PLASTIC SO (WIDE)
TJMAX = 85°C, θJA = 80°C/W
ORDER PART
NUMBER
LT1032CSW
LT1032ISW
ELECTRICAL CHARACTERISTICS The q denotes specifications which apply over the full operating temperature
range, otherwise specifications are at TA = 25°C. Supply voltage = ±5V to ±15V
PARAMETER
CONDITIONS
MIN TYP MAX
UNITS
Supply Current
Power Supply Leakage Current
Output Voltage Swing
VON/OFF 2.4V, IOUT = 0, All Outputs Low
VON/OFF 0.4V
VON/OFF 0.1V, TA = 125°C
Load = 2mA Positive
Negative
q
q
V + – 0.3V
500
1
10
V + – 0.1V
V + 0.7V
1000
10
50
V + 0.9V
µA
µA
µA
V
V
Output Current (Active)
Output Current (Shutdown)
Output Overload Voltage (Forced)
Input Overload Voltage (Forced)
VSUPPLY = ±5V to ±15V
VSUPPLY = 0V, VOUT = ±30V
VSUPPLY = ±15V, VOUT = ±20V
Operating or Shutdown
Operating of Shutdown
10 22
2 100
2 100
q V + – 30V
q V
V + 30V
30V
mA
µA
µA
V
V
Logic Input Levels
Logic Input Current
ON/OFF Pin Current
Slew Rate
Change in Slew Rate (Note 3)
Response Pin Leakage
Low Input (VOUT = High)
High Input (VOUT = Low)
VIN > 2.0V
VIN < 0.8V
0 VIN 5V
IRESPONSE = 0, RL = 3k
IRESPONSE = 50µA
IRESPONSE = – 50µA
VSUPPLY = ±6V, VON/OFF 0.4V
VRESPONSE = ±6V
q
q2
1.4 0.8
1.4
2 20
10 20
q –10
3
50
4 15 30
50
– 50
1
V
V
µA
µA
µA
V/µs
%
%
µA
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2: 3V applied to the strobe pin will force all outputs low. Strobe pin
input impedance is about 2k to ground. Leave open when not used.
Note 3: Response can be changed by connecting a resistor to the supply.
For supplies less than ±6V this current is disconnected when shut down.
Leave open when not used.
2


Part Number LT1032
Description Quad Low Power Line Driver
Maker Linear Technology
Total Page 8 Pages
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