MAX240CMH-T Maxim Integrated, MAX240CMH-T Datasheet - Page 7

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MAX240CMH-T

Manufacturer Part Number
MAX240CMH-T
Description
RS-232 Interface IC
Manufacturer
Maxim Integrated
Series
MAX220, MAX222, MAX223, MAX225, MAX230, MAX231, MAX232, MAX232A, MAX233, MAX233A, MAX234, MAX235, MAX236, MAX237, MAX238, MAX239, MAX240, MAX241, MAX242, MAX243, MAX244, MAX245, MAX246, MAX247, MAX248, MAX249r
Datasheet

Specifications of MAX240CMH-T

Data Rate
120 Kbps
Operating Supply Voltage
5 V
Supply Current
15 mA
Operating Temperature Range
0 C to + 70 C
Mounting Style
SMD/SMT
Function
Transceiver
Maximum Operating Temperature
+ 70 C
Minimum Operating Temperature
0 C
Number Of Drivers
5
Number Of I/os
20
Number Of Receivers
5
Propagation Delay Time Ns
10 us
Shutdown
Yes
Maxim Integrated
__________________________________________Typical Operating Characteristics
-6.0
-6.5
-7.0
-7.5
-8.0
-8.5
-9.0
8.0
7.5
7.0
8.5
6.5
4.5
4.5
1 TRANS-
MITTER
LOADED
1 TRANSMITTER
LOADED
2 TRANS-
MITTERS
LOADED
TRANSMITTER OUTPUT
VOLTAGE (V
TRANSMITTER OUTPUT
VOLTAGE (V
4 TRANSMITTERS
LOADED
2 TRANSMITTERS
LOADED
4 TRANS-
MITTERS
LOADED
3 TRANS-
MITTERS
LOADED
V
V
CC
CC
5.0
5.0
OH
OL
(V)
(V)
) vs. V
) vs. V
T
C1–C4 = 1μF
TRANSMITTER
LOADS =
3kΩ || 2500pF
T
C1–C4 = 1μF
TRANSMITTER
LOADS =
3kΩ || 2500pF
A
A
= +25°C
CC
CC
= +25°C
3 TRANS-
MITTERS
LOADED
+5V-Powered, Multichannel RS-232
5.5
5.5
MAX223/MAX230–MAX241
-6.0
-6.2
-6.4
-6.6
-6.8
-7.0
-7.2
-7.4
-7.6
7.2
7.0
6.8
6.6
6.4
6.2
7.4
6.0
0
0
TRANSMITTER OUTPUT VOLTAGE (V
TRANSMITTER OUTPUT VOLTAGE (V
*SHUTDOWN POLARITY IS REVERSED
T
V
3 TRANSMITTERS LOADED
R
C1–C4 = 1μF
T
V
3 TRANSMITTERS LOADED
R
C1–C4 = 1μF
A
V+, V- WHEN EXITING SHUTDOWN
CC
L
A
CC
L
= +25°C
= 3kΩ
= +25°C
= 3kΩ
= +5V
vs. LOAD CAPACITANCE AT
= +5V
vs. LOAD CAPACITANCE AT
160kb/s
80kb/s
20kb/s
500
500
DIFFERENT DATA RATES
DIFFERENT DATA RATES
160kb/s
80kb/s
20kb/s
LOAD CAPACITANCE (pF)
LOAD CAPACITANCE (pF)
(1μF CAPACITORS)
1000
1000
500ms/div
1500
1500
2000
2000
MAX220–MAX249
MAX220–MAX249
MAX220-13
OH
OL
Drivers/Receivers
2500
2500
)
)
V+
O
V-
V
SHDN
11.0
10.0
12.0
-10
9.0
8.0
7.0
6.0
5.0
4.0
*
10
-2
-4
-6
-8
8
6
4
2
0
TRANSMITTER OUTPUT VOLTAGE (V+, V-)
0
0
1 TRANSMITTER LOADED
V+ AND V-
EQUALLY
LOADED
5
3 TRANSMITTERS
LOADED
TRANSMITTER SLEW RATE
500
T
V
C1–C4 = 1μF
10 15 20 25 30 35 40 45 50
vs. LOAD CAPACITANCE
A
CC
= +25°C
LOAD CAPACITANCE (pF)
vs. LOAD CURRENT
= +5V
4 TRANSMITTERS
1000
V- LOADED,
NO LOAD
ON V+
CURRENT (mA)
LOADED
ALL TRANSMITTERS UNLOADED
1500
2 TRANSMITTERS
T
V
LOADED, R
C1–C4 = 1μF
LOADED
A
CC
= +25°C
= +5V
V+ LOADED,
NO LOAD
ON V-
2000
L
= 3kΩ
2500
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