LTC485I LINER [Linear Technology], LTC485I Datasheet - Page 2

• Manufacturer Part Number: LTC485I
• Description: Low Power RS485 Interface Transceiver
• Manufacturer: LINER [Linear Technology]

A
LTC485
(Note 1)
Supply Voltage ....................................................... 12V
Control Input Voltages ................... – 0.5V to V
Driver Input Voltage ....................... – 0.5V to V
Driver Output Voltage ........................................... 14V
Receiver Input Voltage.......................................... 14V
Receiver Output Voltages .............. – 0.5V to V
Operating Temperature Range
Lead Temperature (Soldering, 10 sec)................. 300 C
SYMBOL
V
V
V
V
V
I
I
V
V
V
I
R
I
I
I
I
2
ELECTRICAL C
IN1
IN2
OZR
CC
OSD1
OSD2
OSR
OD1
OD2
OC
IH
IL
TH
OH
OL
V
V
IN
BSOLUTE
OD
V
TH
LTC485I...................................... – 40 C T
LTC485C.......................................... 0 C T
LTC485M.................................. – 55 C T
OC
PARAMETER
Differential Driver Output Voltage (Unloaded)
Differential Driver Output Voltage (with Load)
Change in Magnitude of Driver
DifferentialOutput Voltage for
Complementary States
Driver Common-Mode Output Voltage
Change in Magnitude of Driver
Common-Mode Output Voltage
for Complementary States
Input High Voltage
Input Low Voltage
Input Current
Input Current (A, B)
Differential Input Threshold Voltage
for Receiver
Receiver Input Hysteresis
Receiver Output High Voltage
Receiver Outpu Low Voltage
Three-State (High Impedance) Output
Current at Receiver
Receiver Input Resistance
Supply Current
Driver Short-Circuit Current, V
Driver Short-Circuit Current, V
Receiver Short-Circuit Current
W
A
HARA TERISTICS
XI
W
U
C
W
OUT
OUT
= HIGH
= LOW
R
A
TI
U
A
CC
CC
CC
G
A
A
CONDITIONS
I
R = 50 (RS422)
R = 27 (RS485), Figure 1
R = 27 or R = 50 , Figure 1
R = 27 or R = 50 , Figure 1
R = 27 or R = 50 , Figure 1
DE, DI, RE
DE, DI, RE
DE, DI, RE
DE = 0, V
or 5.25V
– 7V V
V
I
I
V
– 7V V
No Load, Pins 2,
3, 4 = 0V or 5V
V
V
0V V
O
O
O
CM
CC
O
O
+ 0.5V
+ 0.5V
+ 0.5V
125 C
S
= 0
= – 4mA, V
= 4mA, V
= – 7V
= 10V
V
85 C
70 C
= Max, 0.4V V
= 0V
CC
O
CM
CM
= 5V 5%, unless otherwise noted. (Notes 2 and 3)
CC
V
ID
CC
= 0V V
ID
12V
12V
= – 200mV
= 200mV
PACKAGE/ORDER I FOR ATIO
8-LEAD CERAMIC DIP
V
Outputs Enabled
Outputs Disabled
O
IN
IN
J8 PACKAGE
= 12V
= – 7V
2.4V
RO
RE
DE
T
T
DI
T
JMAX
JMAX
JMAX
1
2
3
4
8-LEAD PLASTIC SOIC
= 100 C,
= 100 C,
= 155 C,
S8 PACKAGE
TOP VIEW
D
R
JA
JA
JA
8-LEAD PLASTIC DIP
= 130 C/ W (N)
= 170 C/ W (S)
= 100 C/ W (J)
N8 PACKAGE
8
7
6
5
– 0.2
MIN
V
B
A
GND
1.5
3.5
12
35
35
2
2
7
CC
U
TYP
100
100
500
300
70
S8 PART MARKING
ORDER PART
LTC485CJ8
LTC485CN8
LTC485CS8
LTC485IN8
LTC485IS8
LTC485MJ8
NUMBER
W
485
485I
MAX
– 0.8
900
500
250
250
0.2
0.2
0.8
0.2
0.4
85
5
5
3
2
1
1
UNITS
U
mA
mA
mV
mA
mA
mA
k
V
V
V
V
V
V
V
V
A
V
V
V
A
A
A