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MAX3225CPP+ 其他数据使用手册 - Maxim Integrated（美信）
制造商:
Maxim Integrated（美信）
分类:
接口芯片
封装:
DIP-20
描述:
MAXIM INTEGRATED PRODUCTS MAX3225CPP+ 芯片, 线路驱动器, RS232, RS422/RS485
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MAX3225CPP+数据手册
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MAX3224–MAX3227/MAX3244/MAX3245
†
1µA Supply Current, 1Mbps, 3.0V to 5.5V,
RS-232 Transceivers with AutoShutdown Plus
_______________________________________________________________________________________ 5
-6
-5
-4
-3
-2
-1
0
1
2
3
4
5
6
0 1000 2000 3000 4000 5000
MAX3224/MAX3226
TRANSMITTER OUTPUT VOLTAGE
vs. LOAD CAPACITANCE
MAX3224-01
LOAD CAPACITANCE (pF)
TRANSMITTER OUTPUT VOLTAGE (V)
T1 TRANSMITTING AT 250kbps
T2 (MAX3224) TRANSMITTING AT 15.6kbps
V
OUT+
V
OUT-
0
2
4
6
8
10
12
14
16
0 1000 2000 3000 4000 5000
MAX3224/MAX3226
SLEW RATE vs. LOAD CAPACITANCE
MAX3224-02
LOAD CAPACITANCE (pF)
SLEW RATE (V/µs)
-SLEW
+SLEW
FOR DATA RATES UP TO 250kbps
0
5
10
15
20
25
30
35
40
45
020001000 3000 4000 5000
MAX3224/MAX3226
OPERATING SUPPLY CURRENT
vs. LOAD CAPACITANCE
MAX3224-03
LOAD CAPACITANCE (pF)
SUPPLY CURRENT (mA)
250kbps
120kbps
20kbps
T1 TRANSMITTING AT 250kbps
T2 (MAX3224) TRANSMITTING AT 15.6kbps
-7.5
0
-2.5
-5.0
2.5
5.0
7.5
01000500 1500 2000 2500
MAX3225/MAX3227
TRANSMITTER OUTPUT VOLTAGE
vs. LOAD CAPACITANCE
MAX3224-04
LOAD CAPACITANCE (pF)
TRANSMITTER OUTPUT VOLTAGE (V)
2Mbps
2Mbps
1.5Mbps
1.5Mbps
1Mbps
1Mbps
1 TRANSMITTER AT FULL DATA RATE
1 TRANSMITTER AT 1/16 DATA RATE
(MAX3225)
LOAD = 3k
Ω
+ C
L
0
15
10
5
20
25
30
35
40
45
50
01000500 1500 2000 2500 3000
MAX3225/MAX3227
TRANSMITTER SKEW vs.
LOAD CAPACITANCE
MAX3224-07
LOAD CAPACITANCE (pF)
TRANSMITTER SKEW (ns)
AVERAGE; 10 PARTS
1 TRANSMITTER AT 512kbps
1 TRANSMITTER AT 30kbps
(MAX3225)
LOAD = 3k
Ω
+ C
L
0
80
70
60
50
40
30
20
10
0 500 1000 1500 2000 2500
MAX3225/MAX3227
SLEW RATE vs. LOAD CAPACITANCE
MAX3224-05
LOAD CAPACITANCE (pF)
SLEW RATE (V/µs)
1 TRANSMITTER AT 1Mbps
1 TRANSMITTER AT 62.5kbps (MAX3225)
-SLEW
+SLEW
0
20
10
40
30
60
50
70
90
80
100
05001000 1500 2000 2500
MAX3225/MAX3227
OPERATING SUPPLY CURRENT
vs. LOAD CAPACITANCE
MAX3224-06
LOAD CAPACITANCE (pF)
SUPPLY CURRENT (mA)
2Mbps
1.5Mbps
1Mbps
1 TRANSMITTER AT FULL DATA RATE
1 TRANSMITTER AT 1/16 DATA RATE
(MAX3225)
LOAD = 3k
Ω
+ C
L
20
24
22
30
28
26
36
34
32
38
-40 0 20-20 40 60 80 100
MAX3224–MAX3227
READY TURN-ON TIME
vs. TEMPERATURE
MAX3224-08
TEMPERATURE (°C)
READY TURN-ON TIME (µs)
0
200
180
160
140
120
100
80
60
40
20
-40 0 20-20 40 6080100
MAX3224–MAX3227
READY TURN-OFF TIME
vs. TEMPERATURE
MAX3224-09
TEMPERATURE (°C)
READY TURN-OFF TIME (ns)
__________________________________________Typical Operating Characteristics
(V
CC
= +3.3V, 250kbps data rate, C1–C4 = 0.1µF, all transmitters loaded with 3kΩ and C
L
, T
A
= +25°C, unless otherwise noted.)
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