Datasheet

2
LTC1480
A
U
G
W
A
W
U
W
ARB
S
O
LU
T
EXI T
I
S
WU
U
PACKAGE
/
O
RDER I FOR ATIO
(Note 1)
Supply Voltage (V
CC
) ................................................ 7V
Control Input Voltage..................... –0.3V to V
CC
+ 0.3V
Driver Input Voltage....................... –0.3V to V
CC
+ 0.3V
Driver Output Voltage ........................................... ±14V
Receiver Input Voltage.......................................... ±14V
Receiver Output Voltage ................ –0.3V to V
CC
+ 0.3V
Operating Temperature Range
LTC1480C........................................ 0°C ≤ T
A
≤ 70°C
LTC1480I.................................... –40°C ≤ T
A
≤ 85°C
Storage Temperature Range ................. –65°C to 150°C
Lead Temperature (Soldering, 10 sec).................. 300°C
1480
1480I
LTC1480CN8
LTC1480IN8
LTC1480CS8
LTC1480IS8
S8 PART MARKING
ORDER PART
NUMBER
T
JMAX
= 125°C, θ
JA
= 130°C/W (N8)
T
JMAX
= 125°C, θ
JA
= 150°C/W (S8)
Consult factory for Military grade parts.
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V
OD1
Differential Driver Output Voltage (Unloaded) I
O
= 0V ● 3.3 V
V
OD2
Differential Driver Output Voltage (with Load) R = 27Ω (RS485), Figure 1 ● 1.5 3.3 V
R = 50Ω (RS422)
● 2.0 V
∆V
OD
Change in Magnitude of Driver Differential Output R = 27Ω or R = 50Ω, Figure 1 ● 0.2 V
Voltage for Complementary Output States
V
OC
Driver Common-Mode Output Voltage R = 27Ω or R = 50Ω, Figure 1 ● 2V
∆V
OC
 Change in Magnitude of Driver Common-Mode R = 27Ω or R = 50Ω, Figure 1 ● 0.2 V
Output Voltage for Complementary Output States
V
IH
Input HIGH Voltage DE, DI, RE ● 2V
V
IL
Input LOW Voltage DE, DI, RE ● 0.8 V
I
IN1
Input Current DE, DI, RE ● ±2 µA
I
IN2
Input Current (A, B) DE = 0, V
CC
= 0V or 3.6V, V
IN
= 12V ● 1.0 mA
DE = 0, V
CC
= 0V or 3.6V, V
IN
= –7V ● –0.8 mA
V
TH
Differential Input Threshold Voltage for Receiver –7V ≤ V
CM
≤ 12V ● –0.2 0.2 V
∆V
TH
Receiver Input Hysteresis V
CM
= 0V 70 mV
V
OH
Receiver Output HIGH Voltage I
O
= –4mA, V
ID
= 200mV ● 2V
V
OL
Receiver Output LOW Voltage I
O
= 4mA, V
ID
= –200mV ● 0.4 V
I
OZR
Three-State (High Impedance) Output V
CC
= Max, 0.4V ≤ V
O
≤ 2.4V ● ±1 µA
Current at Receiver
R
IN
Receiver Input Resistance –7V ≤ V
CM
≤ 12V ● 12 kΩ
I
CC
Supply Current No Load, Output Enabled ● 400 600 µA
No Load, Output Disabled
● 300 500 µA
I
SHDN
Supply Current in Shutdown Mode DE = 0, RE = V
CC
110µA
I
OSD1
Driver Short-Circuit Current, V
OUT
= HIGH –7V ≤ V
O
≤ 12V ● 35 250 mA
I
OSD2
Driver Short-Circuit Current, V
OUT
= LOW –7V ≤ V
O
≤ 12V ● 35 250 mA
I
OSR
Receiver Short-Circuit Current 0V ≤ V
O
≤ V
CC
● 785mA
E
LECTR
IC
AL C CHARA TERIST
ICS
V
CC
= 3.3V (Notes 2, 3)
1
2
3
4
8
7
6
5
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TOP VIEW
V
CC

B
A
GND
N8 PACKAGE
8-LEAD PDIP
S8 PACKAGE
8-LEAD PLASTIC SO
R
D
RO
RE
DE
DI