LTC2862A
4
2862af
For more information www.linear.com/LTC2862A
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
Logic
V
TH
Input Threshold Voltage (DE, DI, RE) 3.0 ≤ V
CC
≤ 5.5V
l
0.33 V
CC
0.67 V
CC
V
I
INL
Logic Input Current (DE, DI, RE) 0 ≤ V
IN
≤ V
CC
l
0 ±5 µA
ESD (Note 5)
ESD Protection Level of Interface Pins
(A,B), Powered or Unpowered
Human Body Model, A or B to GND,
V
CC
, B or A, 1μF Between V
CC
and GND
±40kV kV
IEC 61000-4-2 ESD Level 4, Contact, 1μF
Between V
CC
and GND
±8kV kV
ESD Protection Level of All Other Pins
(RO, RE, DE, DI, V
CC
, GND)
Human Body Model ±15kV kV
elecTrical characTerisTics
The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. V
CC
= 3.3V unless otherwise noted. (Note 2)
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
Driver – High Speed (LTC2862A-1)
f
MAX
Maximum Data Rate (Note 3)
l
20 Mbps
t
PLHD
, t
PHLD
Driver Input to Output R
DIFF
= 54Ω, C
L
= 100pF (Figure 4)
l
25 50 ns
Δt
PD
Driver Input to Output Difference
|t
PLHD
– t
PHLD
|
R
DIFF
= 54Ω, C
L
= 100pF (Figure 4)
l
2 5 ns
t
SKEWD
Driver Output A to Output B R
DIFF
= 54Ω, C
L
= 100pF (Figure 4)
l
±10 ns
t
RD
, t
FD
Driver Rise or Fall Time R
DIFF
= 54Ω, C
L
= 100pF (Figure 4)
l
4 15 ns
t
ZLD
, t
ZHD
Driver Enable Time R
L
= 27Ω, C
L
= 100pF,
RE = 0V (Figure 5)
l
25 50 ns
t
LZD
, t
HZD
Driver Disable Time R
L
= 27Ω, C
L
= 100pF,
RE = 0V (Figure 5)
l
45 75 ns
t
ZHSD
, t
ZLSD
Driver Enable from Shutdown R
L
= 27Ω, C
L
= 100pF,
RE = High (Figure 5)
l
5 10 µs
t
SHDND
Time to Shutdown R
L
= 27Ω, C
L
= 100pF,
RE = High (Figure 5)
l
50 90 ns
Driver – Slew Rate Limited (LTC2862A-2)
f
MAXS
Maximum Data Rate (Note 3)
l
250 kbps
t
PLHDS
, t
PHLDS
Driver Input to Output R
DIFF
= 54Ω, C
L
= 100pF (Figure 4)
l
850 1500 ns
Δt
PDS
Driver Input to Output Difference
|t
PLHDS
– t
PHLDS
|
R
DIFF
= 54Ω, C
L
= 100pF (Figure 4)
l
10 150 ns
t
SKEWDS
Driver Output A to Output B R
DIFF
= 54Ω, C
L
= 100pF (Figure 4)
l
±500 ns
t
RDS
, t
FDS
Driver Rise or Fall Time R
DIFF
= 54Ω, C
L
=100pF (Figure 4)
l
500 800 1200 ns
t
ZLDS
, t
ZHDS
Driver Enable Time R
L
= 27Ω, C
L
= 100pF,
RE = 0V (Figure 5)
l
400 800 ns
t
LZDS
, t
HZDS
Driver Disable Time R
L
= 27Ω, C
L
= 100pF,
RE = 0V (Figure 5)
l
45 75 ns
t
ZHSDS
, t
ZLSDS
Driver Enable from Shutdown R
L
= 27Ω, C
L
= 100pF,
RE = High (Figure 5)
l
6 11 µs
swiTchinG characTerisTics
The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. V
CC
= 3.3V unless otherwise noted. (Note 2)
LTC2862A
5
2862af
For more information www.linear.com/LTC2862A
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 of device
pins are negative. All voltages are referenced to device ground unless
otherwise specified.
Note 3: Maximum data rate is guaranteed by other measured parameters
and is not tested directly.
Note 4: This IC includes overtemperature protection that is intended
to protect the device during momentary overload conditions. Junction
temperature will exceed 150ºC when overtemperature protection is active.
Continuous operation above the specified maximum operating temperature
may result in device degradation or failure.
Note 5: Not tested in production.
swiTchinG characTerisTics
The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. V
CC
= 3.3V unless otherwise noted. (Note 2)
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
t
SHDNDS
Time to Shutdown R
L
= 27Ω, C
L
= 100pF,
RE = High (Figure 5)
l
50 90 ns
Receiver
t
PLHR
, t
PHLR
Receiver Input to Output (LTC2862A-1) C
L
= 15pF, V
CM
= 0V, |V
AB
| = 1.5V,
t
R
and t
F
< 4ns (Figure 6)
l
50 65 ns
t
PLHRS
, t
PHLRS
Receiver Input to Output (LTC2862A-2) C
L
= 15pF, V
CM
= 0V, |V
AB
| = 1.5V,
t
R
and t
F
< 4ns (Figure 6)
l
400 700 ns
t
SKEWR
Differential Receiver Skew
|t
PLHR
– t
PHLR
| (LTC2862A-1)
C
L
= 15pF (Figure 6)
l
1 5 ns
t
SKEWRS
Differential Receiver Skew
|t
PLHRS
– t
PHLRS
| (LTC2862A-2)
C
L
= 15pF (Figure 6)
l
5 30 ns
t
PFSN
Failsafe Enter Delay (LTC2862A-1) C
L
= 15pF, V
CM
= 0V, |V
AB
| = 1.5V,
t
R
and t
F
< 4ns (Figure 8)
l
80 110 ns
t
PFSNS
Failsafe Enter Delay (LTC2862A-2) C
L
= 15pF, V
CM
= 0V, |V
AB
| = 1.5V,
t
R
and t
F
< 4ns (Figure 8)
l
1.5 2.3 µs
t
PFSX
Failsafe Exit Delay (LTC2862A-1) C
L
= 15pF, V
CM
= 0V, |V
AB
| = 1.5V,
t
R
and t
F
< 4ns (Figure 8)
l
45 60 ns
t
PFSXS
Failsafe Exit Delay (LTC2862A-2) C
L
= 15pF, V
CM
= 0V, |V
AB
| = 1.5V,
t
R
and t
F
< 4ns (Figure 8)
l
0.7 1.3 µs
t
RR
, t
FR
Receiver Output Rise or Fall Time C
L
= 15pF (Figure 6)
l
3 6 ns
t
ZLR
, t
ZHR
Receiver Enable Time R
L
= 500Ω, C
L
= 15pF, DE = High
(Figure 7)
l
18 30 ns
t
LZR
, t
HZR
Receiver Disable Time R
L
= 500Ω, C
L
= 15pF, DE = High
(Figure 7)
l
29 40 ns
t
ZHSR
, t
ZLSR
Receiver Enable from Shutdown R
L
= 500Ω, C
L
= 15pF, DE = High
(Figure 7)
l
5 10 µs
t
SHDNR
Time to Shutdown R
L
= 500Ω, C
L
= 15pF, DE = High
(Figure 7)
l
24 40 ns
LTC2862A
6
2862af
For more information www.linear.com/LTC2862A
Typical perForMance characTerisTics
Driver Output Short-Circuit
Current vs Voltage
Driver Output Low/High Voltage
vs Output Current
Driver Differential Output Voltage
vs Temperature
Supply Current vs Data Rate
Driver Skew vs Temperature
Driver Propagation Delay vs
Temperature
T
A
= 25°C, V
CC
= 3.3V, unless otherwise noted.
Supply Current vs TemperatureSupply Current vs V
CC
OUTPUT CURRENT (mA)
0
0.0
DRIVER OUTPUT VOLTAGE (V)
2.0
1.5
1.0
0.5
2.5
3.0
3.5
10
20 30 40
2862A G07
50
V
OH
V
OL
TEMPERATURE (°C)
–50
1.5
V
OD
(V)
1.9
1.7
2.1
2.3
2.5
0
50 100
2862A G08
150
R
DIFF
= 100Ω
R
DIFF
= 54Ω
TEMPERATURE (°C)
DRIVER SKEW (SLEW LIMITED) (ns)
–50
–1.5
DRIVER SKEW (NON SLEW LIMITED) (ns)
0.0
–0.5
–1.0
0.5
1.0
1.5
0
50 100
2862A G04
150
0
60
40
20
100
80
120
SLEW LIMITED
NON SLEW LIMITED
R
DIFF
= 54Ω
C
L
= 100pF
TEMPERATURE (°C)
DRIVER DELAY (SLEW LIMITED) (ns)
–50
20
DRIVER DELAY (NON SLEW LIMITED) (ns)
25
30
35
0
50 100
2862A G05
150
700
800
900
1000
SLEW LIMITED
NON SLEW LIMITED
R
DIFF
= 54Ω
C
L
= 100pF
V
CC
(V)
3.0
0
SUPPLY CURRENT (mA)
2.0
1.5
1.0
0.5
2.5
3.0
3.5
4.5
3.5
4.0 4.5 5.0
2862A G01
5.5
4.0
I
CCTRS
I
CCTR
SUPPLY CURRENT (mA)
DATA RATE (SLEW LIMITED) (kbps)
30 35
0
DATA RATE (NON SLEW LIMITED) (Mbps)
8
4
12
16
20
40
45 50 55
2862A G03
60
0
100
50
200
150
250
SLEW LIMITED
NON SLEW LIMITED
R
DIFF
= 54Ω
C
L
= 100pF
OUTPUT VOLTAGE (V)
–60
–200
OUTPUT CURRENT (mA)
0
–50
–100
–150
150
100
50
200
–40
0–20 20 40
2862A G06
60
OUTPUT LOW
OUTPUT HIGH
TEMPERATURE (°C)
–50
0.1
SUPPLY CURRENT (µA)
10
1
100
10000
0 50 100
2862A G02
150
1000
I
CCTR
I
CCS
I
CCTRS
Receiver Output Voltage vs
Output Current (Source and Sink)
OUTPUT CURRENT (ABSOLUTE VALUE) (mA)
0.0
0.0
RECEIVER OUTPUT VOLTAGE (V)
3.0
2.0
1.0
4.0
5.0
6.0
2.0
4.0 6.0
2862A G09
8.0
V
CC
= 5.5V
V
CC
= 3.3V
V
CC
= 3V TO 5.5V

LTC2862AIS8-2#PBF

Mfr. #:
Manufacturer:
Analog Devices Inc.
Description:
RS-422/RS-485 Interface IC 250kbps 60V Fault Protected RS485 Transceiver (Half Duplex + Enables)
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
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