LTC1482CMS8 Linear Technology, LTC1482CMS8 Datasheet - Page 4

• Manufacturer Part Number: LTC1482CMS8
• Description: IC TXRX RS485 LOWPWR 8-MSOP
• Manufacturer: Linear Technology
• Type: Transceiverr

Specifications of LTC1482CMS8

• Number Of Drivers/receivers: 1/1
• Protocol: RS422, RS485
• Voltage - Supply: 4.75 V ~ 5.25 V
• Mounting Type: Surface Mount
• Package / Case: 8-MSOP, Micro8™, 8-uMAX, 8-uSOP,
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

SWITCHING CHARACTERISTICS
LTC1482
temperature range, otherwise specifications are at T
Note 1: Absolute Maximum Ratings are those values beyond which the life of
a device may be impaired.
Note 2: All typicals are given for V
Note 3: All currents into device pins are positive; all currents out of device
pins are negative. All voltages are referenced to device ground unless
otherwise specified.
SYMBOL
t
t
t
t
t
t
4
TYPICAL PERFOR A CE CHARACTERISTICS
CDH(SHDN)
CDL(SHDN)
ZH(SHDN)
ZL(SHDN)
HZ(SHDN)
LZ(SHDN)
6
5
4
3
2
1
0
–0.2
Receiver Output Voltage vs Input
Voltage
V
T
A
THRO(LOW)
= 25 C
–0.16
PARAMETER
Receiver Input to CD Output High at Shutdown
Receiver Input to CD Output Low from Shutdown
Receiver Enable from Shutdown to Output High
Receiver Enable from Shutdown to Output Low
Receiver Disable from High on Shutdown
Receiver Disable from Low on Shutdown
U
INPUT VOLTAGE (V)
–0.12
–0.08
CC
V
THRO(HIGH)
= 5V and T
–0.04
W
1482 G01
U
0
A
= 25 C.
–0.02
–0.04
–0.06
–0.08
–0.12
–0.14
–0.16
–0.18
–0.20
–0.1
0
–55 –35 –15
Receiver Input Threshold Voltage
(Output High) vs Temperature
A
= 25 C. V
CONDITIONS
R
(Figures 4, 11) DI/SHDN = DE
R
(Figures 4, 11) DI/SHDN = DE
C
A = 750mV, B = – 750mV, DE = 0,
DI/SHDN =
C
A = – 750mV, B = 750mV, DE = 0,
DI/SHDN =
C
A = 750mV, B = – 750mV, DE = 0,
DI/SHDN =
C
A = – 750mV, B = 750mV, DE = 0,
DI/SHDN =
The
L
L
L
L
DIFF
DIFF
V
V
CM
= 15pF (Figures 3, 9) S2 Closed,
= 15pF (Figures 3, 9) S1 Closed,
= 15pF (Figures 3, 9) S2 Closed,
= 15pF (Figures 3, 9) S1 Closed,
CM
= 54 , C
= 54 , C
= 0V
TEMPERATURE ( C)
= 12V
CC
5
denotes the specifications which apply over the full operating
= 5V 5% (Notes 2 and 3) unless otherwise noted.
25
Note 4: For higher ambient temperatures, the part may enter thermal
shutdown during short-circuit conditions.
Note 5: Both driver input and driver enable pins are pulled high
simultaneously.
Note 6: Guaranteed by design.
Note 7: Measured with an external LTC1485 driver.
L1
L1
V
45
CM
= C
= C
= –7V
65
L2
L2
V
V
CC
THRO(HIGH)
= 100pF,
= 100pF,
85 105 125
= 5V
1482 G02
–0.02
–0.04
–0.06
–0.08
–0.12
–0.14
–0.16
–0.18
–0.20
–0.1
0
–55 –35 –15
Receiver Input Threshold Voltage
(Output Low) vs Temperature
MIN
V
V
CM
CM
TEMPERATURE ( C)
2600
2600
2600
= 0V
= 12V
TYP
200
200
30
5
25
V
45
CM
5000
5000
5000
MAX
600
600
600
= –7V
65
V
V
CC
THRO(LOW)
85 105 125
= 5V
UNITS
1482 G03
ns
ns
ns
ns
ns
ns