1318 Просмотр технического описания (PDF) - Linear Technology
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1318 Datasheet PDF : 8 Pages
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LTC1318
ABSOLUTE MAXIMUM RATINGS
(Note 1)
Supply Voltage:
VCC ...................................................................................... 7V
V+ ................................................................................... 13.2V
V– ............................................................................... – 13.2V
Input Voltage:
All Drivers .............................. – 0.3 to (VCC + 0.3V)
All Receivers ...................................... – 25V to 25V
RXMODE Pin ....................... – 0.3V to (VCC + 0.3V)
Output Voltage:
RS232 Drivers ................ (V+ – 30V) to (V– + 30V)
RS422 Drivers ................................................ ±15V
All Receivers ........................ – 0.3V to (VCC + 0.3V)
Short-Circuit Duration:
V+ or V– to GND .......................................... 30 sec
Driver or Receiver Outputs ...................... Indefinite
Operating Temperature Range .................... 0°C to 70°C
Lead Temperature (Soldering, 10 sec)................. 300°C
PACKAGE/ORDER INFORMATION
V+ 1
C1+ 2
C1– 3
RXI1 4
TXO1 5
TXO2 6
VCC 7
RXD+ 8
R X D –/RXI2 9
T X D + 10
T X D – 11
NC 12
TOP VIEW
24 V –
23 C 2 –
22 C 2 +
21 RXO1
20 TXI1
19 TXI2
18 GND
17 RXDO/RXO2
16 TXD
15 RXMODE
14 GND
13 NC
SW PACKAGE
24-LEAD PLASTIC SO WIDE
ORDER PART
NUMBER
LTC1318CSW
TJMAX = 125°C, θJA = 85°C/W
Consult factory for Industrial and Military grade parts
ELECTRICAL CHARACTERISTICS
VS = 5V ±5%, C1 = C2 = 0.1µF, TA = 0°C to 70°C, unless otherwise specified. (Notes 2, 3)
SYMBOL PARAMETER
Supplies
CONDITIONS
ICC
Supply Current
No Load
q
V+
Positive Charge Pump Output Voltage
IOUT = 0mA
q
IOUT = 10mA, VCC = 5V
q
V–
Negative Charge Pump Output Voltage
IOUT = 0mA
q
IOUT = – 5mA, VCC = 5V
q
Differential Driver
VOD
Differential Driver Output Voltage
No Load (Figure 1)
q
RL = 100Ω (Figure 1)
q
DVOD
Change in Magnitude of Differential
RL = 100Ω (Figure 1)
q
Output Voltage
VOC
Common-Mode Output Voltage
IDSS
Short-Circuit Output Current
VIL
Input Low Voltage
VIH
Input High Voltage
Single-Ended Driver
RL = 100Ω (Figure 1)
q
– 1V < VCMR < 7V
q
q
q
VO
Output Voltage Swing
IOSS
Short-Circuit Output Current
VIL
Input Low Voltage
VIH
Input High Voltage
SR
Output Slew Rate
RL = 3k
q
VOUT = OV
q
q
q
RL = 3k, CL = 51pF
q
MIN TYP MAX
9
30
7.8
8.8
6.8
7.4
–7.3 –8.6
– 6.3 –7.3
±4
±2
0.2
3
35
200
0.8
2.0
±5 7.3/–6.5
±5
17
0.8
2
4
20
30
UNITS
mA
V
V
V
V
V
V
V
V
mA
V
V
V
mA
V
V
V/µS
2
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