LTC490IN8 Linear Technology, LTC490IN8 Datasheet - Page 2

• Manufacturer Part Number: LTC490IN8
• Description: IC TXRX RS485 LOW POWER 8-DIP
• Manufacturer: Linear Technology
• Type: Transceiverr

Specifications of LTC490IN8

• Number Of Drivers/receivers: 1/1
• Protocol: RS422, RS485
• Voltage - Supply: 4.75 V ~ 5.25 V
• Mounting Type: Through Hole
• Package / Case: 8-DIP (0.300", 7.62mm)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

DC ELECTRICAL CHARACTERISTICS
ABSOLUTE AXI U RATI GS
(Note 1)
Supply Voltage (V
Driver Input Currents ........................... – 25mA to 25mA
Driver Input Voltages ...................... –0.5V to V
Driver Output Voltages .......................................... 14V
Receiver Input Voltages ......................................... 14V
Receiver Output Voltages ............... –0.5V to V
Operating Temperature Range
Storage Temperature Range ................. – 65 C to 150 C
Lead Temperature (Soldering, 10 sec).................. 300 C
operating temperature range, otherwise specifications are at T
SYMBOL
V
V
V
V
V
l
l
V
V
V
I
I
R
I
I
I
I
LTC490
2
IN1
IN2
OZR
CC
OSD1
OSD2
OSR
OZ
OD1
OD2
OC
IH
IL
TH
OH
OL
V
V
IN
OD
TH
V
LTC490C ................................................ 0 C to 70 C
LTC490I ............................................. – 40 C to 85 C
OC
PARAMETER
Differential Driver Output Voltage (Unloaded)
Differential Driver Output Voltage (with Load)
Change in Magnitude of Driver Differential Output
Voltage for Complementary Output States
Driver Common Mode Output Voltage
Change in Magnitude of Driver Common Mode
Output Voltage for Complementary Output States
Input High Voltage (D)
Input Low Voltage (D)
Input Current (D)
Input Current (A, B)
Differential Input Threshold Voltage for Receiver
Receiver Input Hysteresis
Receiver Output High Voltage
Receiver Output Low Voltage
Three-State Output Current at Receiver
Supply Current
Receiver Input Resistance
Driver Short-Circuit Current, V
Driver Short-Circuit Current, V
Receiver Short-Circuit Current
Driver Three-State Output Current
CC
W
) ............................................... 12V
W W
OUT
OUT
= High
= Low
U
CC
CC
+ 0.5V
+ 0.5V
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)
V
– 7V V
V
I
I
V
No Load; D = GND or V
– 7V V
V
V
0V V
V
O
O
O
= 25 C. V
CC
CM
CC
O
O
O
= 0
= –4mA, V
= 4mA, V
= – 7V
= 12V
= – 7V to 12V
The
= 0V or 5.25V
= Max 0.4V V
= 0V
O
Consult LTC Marketing for parts specified with wider operating temperature ranges.
PACKAGE/ORDER I FOR ATIO
CM
O
V
denotes the specificatiions which apply over the full
CC
12V
ID
CC
12V
ID
GND
V
= – 0.2V
T
T
= 5V 5%
JMAX
CC
JMAX
= 0.2V
R
D
1
2
3
4
= 125 C,
O
= 150 C,
8-LEAD PLASTIC SO
V
V
N8 PACKAGE
8-LEAD PDIP
S8 PACKAGE
CC
IN
2.4V
IN
TOP VIEW
= 12V
= – 7V
D
JA
JA
R
= 100 C/ W (N8)
= 150 C/ W (S8)
8
7
6
5
A
B
Z
Y
– 0.2
MIN
1.5
2.0
3.5
12
2
7
U
S8 PART MARKING
TYP
300
100
100
70
2
ORDER PART
LTC490CN8
LTC490CS8
LTC490IN8
LTC490IS8
NUMBER
W
MAX
– 0.8
500
250
250
0.2
0.2
0.8
0.2
0.4
85
200
490
490I
5
5
3
1
2
1
UNITS
U
490fb
mA
mA
mV
mA
mA
mA
k
V
V
V
V
V
V
V
V
A
V
V
V
A
A
A