LTC485CS8#TRPBF Linear Technology, LTC485CS8#TRPBF Datasheet - Page 3
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LTC485CS8#TRPBF
Manufacturer Part Number
LTC485CS8#TRPBF
Description
IC TXRX INTRFC RS485 LOPWR 8SOIC
Manufacturer
Linear Technology
Type
Transceiverr
Specifications of LTC485CS8#TRPBF
Number Of Drivers/receivers
1/1
Protocol
RS485
Voltage - Supply
4.75 V ~ 5.25 V
Mounting Type
Surface Mount
Package / Case
8-SOIC (3.9mm Width)
Interface Circuit Standard 1
RS-485
Number Of Receivers
1
Number Of Transmitters
1
Number Of Transceivers
1
Data Transmission Topology
Multipoint
Receiver Signal Type
Differential
Transmitter Signal Type
Differential
Single Supply Voltage (typ)
5V
Single Supply Voltage (min)
4.75V
Single Supply Voltage (max)
5.25V
Dual Supply Voltage (typ)
Not RequiredV
Dual Supply Voltage (min)
Not RequiredV
Dual Supply Voltage (max)
Not RequiredV
Supply Current
0.9mA
Power Supply Requirement
Single
Operating Temp Range
0C to 70C
Operating Temperature Classification
Commercial
Mounting
Surface Mount
Pin Count
8
Package Type
SOIC N
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
ELECTRICAL CHARACTERISTICS
temperature range, otherwise specifi cations are at T
SYMBOL
V
V
I
I
V
ΔV
V
V
I
R
SWITCHING CHARACTERISTICS
temperature range, otherwise specifi cations are at T
SYMBOL
I
I
I
I
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2: All currents into device pins are positive; all currents out ot device
pins are negative. All voltages are referenced to device ground unless
otherwise specifi ed.
IN1
IN2
OZR
CC
OSD1
OSD2
OSR
PLH
PHL
SKEW
r
ZH
ZL
LZ
HZ
PLH
PHL
SKD
ZL
ZH
LZ
HZ
TH
IH
IL
OH
OL
, t
IN
TH
f
PARAMETER
Supply Current
Driver Short-Circuit Current, V
Driver Short-Circuit Current, V
Receiver Short-Circuit Current
Driver Input to Output
Driver Input to Output
Driver Output to Output
Driver Rise or Fall Time
Driver Enable to Output High
Driver Enable to Output Low
Driver Disable Time from Low
Driver Disable Time from High
Receiver Input to Output
|t
Receiver Enable to Output Low
Receiver Enable to Output High
Receiver Disable from Low
Receiver Disable from High
PARAMETER
Input High Voltage
Input Low Voltage
Input Current
Input Current (A, B)
Differential Input Threshold Voltage for Receiver –7V ≤ V
Receiver Input Hysteresis
Receiver Output High Voltage
Receiver Output Low Voltage
Three-State (High Impedance) Output Current
at Receiver
Receiver Input Resistance
PLH
– t
PHL
| Differential Receiver Skew
OUT
OUT
= HIGH
= LOW
CONDITIONS
No Load, Pins 2, 3, 4 = 0V or 5V
V
V
0V ≤ V
R
(Figures 3 and 5)
C
C
C
C
R
(Figures 3 and 7)
C
C
C
C
O
O
L
L
L
L
RL
RL
RL
RL
DIFF
DIFF
= 100pF (Figures 4 and 6) S2 Closed
= 100pF (Figures 4 and 6) S1 Closed
= 15pF (Figures 4 and 6) S1 Closed
= 15pF (Figures 4 and 6) S2 Closed
= – 7V
= 10V
A
A
= 15pF (Figures 2 and 8) S1 Closed
= 15pF (Figures 2 and 8) S2 Closed
= 15pF (Figures 2 and 8) S1 Closed
= 15pF (Figures 2 and 8) S2 Closed
= 25°C. V
= 25°C. V
= 54Ω, C
= 54Ω, CL1 = CL2 = 100pF ,
CONDITIONS
DE, DI, RE
DE, DI, RE
DE, DI, RE
DE = 0, V
V
I
I
V
–7V ≤ V
O
O
O
CM
CC
≤ V
= –4mA, V
= 4mA, V
= Max, 0.4V ≤ V
The
The
= 0V
CC
CM
CM
L1
CC
l
l
CC
CC
= C
≤ 12V
≤ 12V
denotes the specifi cations which apply over the full operating
ID
denotes the specifi cations which apply over the full operating
= 0V or 5.25V
= 5V ±5%, unless otherwise noted. (Notes 2 and 3)
ID
= 5V ±5%, unless otherwise noted. (Notes 2 and 3)
= –200mV
L2
= 200mV
= 100pF ,
Note 3: All typicals are given for V
Note 4: The LTC485 is guaranteed by design to be functional over a supply
voltage range of 5V ±10%. Data sheet parameters are guaranteed over the
tested supply voltage range of 5V ±5%.
O
≤ 2.4V
Outputs Enabled
Outputs Disabled
V
V
IN
IN
= 12V
= –7V
CC
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
= 5V and T
MIN
MIN
–0.2
3.5
35
35
10
10
30
30
12
7
3
2
A
TYP
500
300
100
100
= 25°C.
TYP
15
40
40
40
40
90
90
13
20
20
20
20
30
30
70
5
LTC485
MAX
MAX
–0.8
900
500
250
250
200
200
0.8
0.2
0.4
85
50
50
10
25
70
70
70
70
50
50
50
50
±2
±1
±1
UNITS
UNITS
3
485fh
mA
mA
mV
mA
mA
mA
kΩ
μA
μA
μA
μA
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
V
V
V
V
V