14-Pin SO (derate 8.33mW/°C above +70°C)................667mW
Operating Temperature Ranges
MAX34_ _C_ _.......................................................0°C to +70°C
MAX34_ _E_ _ ....................................................-40°C to +85°C
Storage Temperature Range .............................-65°C to +160°C
Lead Temperature (soldering, 10sec) .............................+300°C
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
DC ELECTRICAL CHARACTERISTICS
(V
CC
= 3.3V ±0.3V, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25°C)
PARAMETER
Differential Driver Output
Change in Magnitude of Driver
Differential Output Voltage for
Complementary Output States
(Note 1)
Driver Common-Mode Output
Voltage
Change in Magnitude of
Common-Mode Output Voltage
(Note 1)
Input High Voltage
Input Low Voltage
Logic Input Current
Input Current (A, B)
Output Leakage (Y, Z)
Output Leakage (Y, Z)
in Shutdown Mode
Receiver Differential
Threshold Voltage
Receiver Input Hysteresis
Receiver Output High Voltage
Receiver Output Low Voltage
Three-State (High Impedance)
Output Current at Receiver
Receiver Input Resistance
SYMBOL
V
OD
CONDITIONS
R
L
= 100Ω (RS-422), Figure 4
R
L
= 54Ω (RS-485), Figure 4
R
L
= 60Ω (RS-485), V
CC
= 3.3V, Figure 5
∆V
OD
MIN
2.0
1.5
1.5
V
TYP
MAX
UNITS
R
L
= 54Ω or 100Ω, Figure 4
0.2
V
V
OC
R
L
= 54Ω or 100Ω, Figure 4
3
V
∆V
OC
V
IH
V
IL
I
IN1
I
IN2
I
O
I
O
V
TH
∆V
TH
V
OH
V
OL
I
OZR
R
IN
R
L
= 54Ω or 100Ω, Figure 4
DE, DI, RE
DE, DI, RE
DE, DI, RE
DE = 0V,
V
CC
= 0V or 3.6V
V
IN
= 12V
V
IN
= -7V
2.0
0.2
V
V
0.8
±2
1.0
-0.8
20
-20
1
-1
-0.2
50
V
CC
- 0.4
0.4
±1
12
0.2
V
µA
mA
µA
µA
V
mV
V
V
µA
kΩ
V
OUT
= 12V
DE = 0V, RE = 0V,
V
CC
= 0V or 3.6V, MAX3491 V
OUT
= -7V
V
OUT
= 12V
DE = 0V, RE = V
CC
,
V
CC
= 0V or 3.6V, MAX3491 V
OUT
= -7V
-7V
≤
V
CM
≤
12V
V
CM
= 0V
I
OUT
= -1.5mA, V
ID
= 200mV, Figure 6
I
OUT
= 2.5mA, V
ID
= 200mV, Figure 6
V
CC
= 3.6V, 0V
≤
V
OUT
≤
V
CC
-7V
≤
V
CM
≤
12V
2
Maxim Integrated
MAX3483/MAX3485/MAX3486/
MAX3488/MAX3490/MAX3491
3.3V-Powered, 10Mbps and Slew-Rate-Limited
True RS-485/RS-422 Transceivers
DC ELECTRICAL CHARACTERISTICS (continued)
(V
CC
= 3.3V ±0.3V, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25°C)
PARAMETER
SYMBOL
No load,
DI = 0V or V
CC
CONDITIONS
DE = V
CC
,
RE = 0V or V
CC
DE = 0V,
RE = 0V
MIN
TYP
1.1
0.95
0.002
MAX
2.2
mA
1.9
1
-250
250
±8
±60
µA
mA
mA
UNITS
Supply Current
I
CC
Supply Current in Shutdown Mode
Driver Short-Circuit Output
Current
Receiver Short-Circuit Output
Current
I
SHDN
I
OSD
I
OSR
DE = 0V, RE = V
CC
, DI = V
CC
or 0V
V
OUT
= -7V
V
OUT
= 12V
0V
≤
V
RO
≤
V
CC
DRIVER SWITCHING CHARACTERISTICS—MAX3485, MAX3490, and MAX3491
(V
CC
= 3.3V, T
A
= +25°C)
PARAMETER
Driver Differential Output Delay
Driver Differential Output Transition Time
Driver Propagation Delay, Low-to-High Level
Driver Propagation Delay, High-to-Low Level
SYMBOL
t
DD
t
TD
t
PLH
t
PHL
t
PDS
t
PZL
t
PZH
t
PHZ
t
PLZ
t
PSL
t
PSH
CONDITIONS
R
L
= 60Ω, Figure 7
R
L
= 60Ω, Figure 7
R
L
= 27Ω, Figure 8
R
L
= 27Ω, Figure 8
R
L
= 27Ω, Figure 8
R
L
= 110Ω, Figure 10
R
L
= 110Ω, Figure 9
R
L
= 110Ω, Figure 9
R
L
= 110Ω, Figure 10
R
L
= 110Ω, Figure 10
R
L
= 110Ω, Figure 9
45
45
40
40
650
650
MIN
1
3
7
7
TYP
22
8
22
22
MAX
35
25
35
35
8
90
90
80
80
900
900
UNITS
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
|
t
PLH
- t
PHL
|
Driver Propagation Delay Skew (Note 2)
Driver Output Enable Time to Low Level
Driver Output Enable Time to High Level
Driver Output Disable Time from High Level
Driver Output Disable Time from Low Level
Driver Output Enable Time from Shutdown to Low Level
Driver Output Enable Time from Shutdown to High Level
DRIVER OUTPUT ENABLE/DISABLE TIMES (MAX3485/MAX3491 only)
DRIVER SWITCHING CHARACTERISTICS—MAX3486
(V
CC
= 3.3V, T
A
= +25°C)
PARAMETER
Driver Differential Output Delay
Driver Differential Output Transition Time
Driver Propagation Delay, Low-to-High Level
Driver Propagation Delay, High-to-Low Level
SYMBOL
t
DD
t
TD
t
PLH
t
PHL
t
PDS
t
PZL
t
PZH
t
PHZ
t
PLZ
t
PSL
t
PSH
CONDITIONS
R
L
= 60Ω, Figure 7
R
L
= 60Ω, Figure 7
R
L
= 27Ω, Figure 8
R
L
= 27Ω, Figure 8
R
L
= 27Ω, Figure 8
R
L
= 110Ω, Figure 10
R
L
= 110Ω, Figure 9
R
L
= 110Ω, Figure 9
R
L
= 110Ω, Figure 10
R
L
= 110Ω, Figure 10
R
L
= 110Ω, Figure 9
55
55
45
45
700
700
MIN
24
15
20
20
TYP
48
35
48
48
MAX
70
60
70
70
11
100
100
80
80
1000
1000
UNITS
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
|
t
PLH
- t
PHL
|
Driver Propagation Delay Skew (Note 2)
Driver Output Enable Time to Low Level
Driver Output Enable Time to High Level
Driver Output Disable Time from High Level
Driver Output Disable Time from Low Level
Driver Output Enable Time from Shutdown to Low Level
Driver Output Enable Time from Shutdown to High Level
Maxim Integrated
3
MAX3483/MAX3485/MAX3486/
MAX3488/MAX3490/MAX3491
3.3V-Powered, 10Mbps and Slew-Rate-Limited
True RS-485/RS-422 Transceivers
DRIVER SWITCHING CHARACTERISTICS—MAX3483 and MAX3488
(V
CC
= 3.3V, T
A
= +25°C)
PARAMETER
Driver Differential Output Delay
Driver Differential Output Transition Time
Driver Propagation Delay, Low-to-High Level
Driver Propagation Delay, High-to-Low Level
SYMBOL
t
DD
t
TD
t
PLH
t
PHL
t
PDS
t
PZL
t
PZH
t
PHZ
t
PLZ
t
PSL
t
PSH
CONDITIONS
R
L
= 60Ω, Figure 7
R
L
= 60Ω, Figure 7
R
L
= 27Ω, Figure 8
R
L
= 27Ω, Figure 8
R
L
= 27Ω, Figure 8
R
L
= 110Ω, Figure 10
R
L
= 110Ω, Figure 9
R
L
= 110Ω, Figure 9
R
L
= 110Ω, Figure 10
R
L
= 110Ω, Figure 10
R
L
= 110Ω, Figure 9
MIN
600
400
700
700
TYP
900
700
1000
1000
100
900
600
50
50
1.9
2.2
1300
800
80
80
2.7
3.0
MAX
1400
1200
1500
1500
UNITS
ns
ns
ns
ns
ns
ns
ns
ns
ns
µs
µs
|
t
PLH
- t
PHL
|
Driver Propagation Delay Skew (Note 2)
Driver Output Enable Time to Low Level
Driver Output Enable Time to High Level
Driver Output Disable Time from High Level
Driver Output Disable Time from Low Level
Driver Output Enable Time from Shutdown to Low Level
Driver Output Enable Time from Shutdown to High Level
DRIVER OUTPUT ENABLE/DISABLE TIMES (MAX3483 only)
RECEIVER SWITCHING CHARACTERISTICS
(V
CC
= 3.3V, T
A
= +25°C)
PARAMETER
Time to Shutdown
Receiver Propagation Delay,
Low-to-High Level
Receiver Propagation Delay,
High-to-Low Level
SYMBOL
t
SHDN
t
RPLH
t
RPHL
t
RPDS
t
PRZL
t
PRZH
t
PRHZ
t
PRLZ
t
PRSL
t
PRSH
CONDITIONS
MAX3483/MAX3485/MAX3486/MAX3491 only
(Note 3)
V
ID
= 0V to 3.0V, C
L
= 15pF, Figure 11
MAX3483/MAX3488
V
ID
= 0V to 3.0V, C
L
= 15pF, Figure 11
MAX3483/MAX3488
V
ID
= 0V to 3.0V, C
L
= 15pF, Figure 11
MAX3483/MAX3488
C
L
= 15pF, Figure 12,
MAX3483/MAX3485/MAX3486/MAX3491 only
C
L
= 15pF, Figure 12,
MAX3483/MAX3485/MAX3486/MAX3491 only
C
L
= 15pF, Figure 12,
MAX3483/MAX3485/MAX3486/MAX3491 only
C
L
= 15pF, Figure 12,
MAX3483/MAX3485/MAX3486/MAX3491 only
C
L
= 15pF, Figure 12,
MAX3483/MAX3485/MAX3486/MAX3491 only
C
L
= 15pF, Figure 12,
MAX3483/MAX3485/MAX3486/MAX3491 only
25
25
25
25
720
720
MIN
80
25
25
25
25
TYP
190
65
75
65
75
MAX
300
90
120
90
120
10
20
50
50
45
45
1400
1400
UNITS
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
|
t
PLH
- t
PHL
|
Receiver
Propagation Delay Skew
Receiver Output Enable Time
to Low Level
Receiver Output Enable Time
to High Level
Receiver Output Disable
Time from High Level
Receiver Output Disable
Time from Low Level
Receiver Output Enable Time
from Shutdown to Low Level
Receiver Output Enable Time
from Shutdown to High Level
Note 1:
∆V
OD
and
∆V
OC
are the changes in V
OD
and V
OC
, respectively, when the DI input changes state.
Note 2:
Measured on
|
t
PLH
(Y) - t
PHL
(Y)
|
and
|
t
PLH
(Z) - t
PHL
(Z)
|.
Note 3:
The transceivers are put into shutdown by bringing RE high and DE low. If the inputs are in this state for less than 80ns, the
parts are guaranteed not to enter shutdown. If the inputs are in this state for at least 300ns, the parts are guaranteed to
京公网安备 11010802033920号
EEWORLD
