参数资料
型号: ADM241LAR
厂商: Analog Devices Inc
文件页数: 20/20页
文件大小: 0K
描述: IC TXRX RS-232 4:5 5V LP 28SOIC
标准包装: 27
类型: 收发器
驱动器/接收器数: 4/5
规程: RS232
电源电压: 4.75 V ~ 5.25 V
安装类型: 表面贴装
封装/外壳: 28-SOIC(0.295",7.50mm 宽)
供应商设备封装: 28-SOIC W
包装: 管件
ADM231L–ADM234L/ADM236L–ADM241L
Rev. C | Page 9 of 20
TYPICAL OPERATING CIRCUITS
ADM231L
1
F
+16V
C1+
C1–
T1IN
T1
T1OUT
T2IN
T2
T2OUT
RS-232
OUTPUTS
R1OUT
R1
R1IN
R2OUT
R2IN
TTL/CMOS
OUTPUTS
R2
V–
1
F
+16V
+12V TO –12V
VOLTAGE
INVERTER
V+
GND
+7.5V TO +13.2V
VCC
1
F
+5V INPUT
00070-0-005
TTL/CMOS
INPUTS1
RS-232
INPUTS2
1INTERNAL 400k
PULL-UP RESISTOR ON EACH TTL/CMOS INPUT.
2INTERNAL 5k
PULL-DOWN RESISTOR ON EACH RS-232 INPUT.
1
2
8
7
9
6
12
5
10
4
11
3
13
14
Figure 17. ADM231L Typical Operating Circuit (PDIP Pinout)
ADM232L
1
F
+6.3V
1
F
+16V
C1+
C1–
C2–
C2+
T1IN
T1
T1OUT
T2IN
T2
T2OUT
RS-232
OUTPUTS
R1OUT
R1
R1IN
R2OUT
R2IN
TTL/CMOS
OUTPUTS
R2
V–
1
F
+16V
+10V TO –10V
VOLTAGE
INVERTER
1
F
+6.3V
1
F
+6.3V
5V INPUT
V+
VCC
+5V TO +10V
VOLTAGE
DOUBLER
GND
00070-
0-
007
TTL/CMOS
INPUTS1
RS-232
INPUTS2
1INTERNAL 400k
PULL-UP RESISTOR ON EACH TTL/CMOS INPUT.
2INTERNAL 5k
PULL-DOWN RESISTOR ON EACH RS-232 INPUT.
Figure 18. ADM232L Typical Operating Circuit
ADM233L
C1+
C1–
V–
T1IN
T1
T1OUT
T2IN
T2
T2OUT
RS-232
OUTPUTS
R1OUT
R1
R1IN
R2OUT
R2IN
TTL/CMOS
OUTPUTS
R2
C2–
C2+
VCC
GND
+5V INPUT
GND
INTERNAL
–10V POWER
SUPPLY
INTERNAL
+10V POWER
SUPPLY
V+
C2+
C2–
DO NOT MAKE
CONNECTIONS TO
THESE PINS
00070-
0-
009
TTL/CMOS
INPUTS1
RS-232
INPUTS2
1INTERNAL 400k
PULL-UP RESISTOR ON EACH TTL/CMOS INPUT.
2INTERNAL 5k
PULL-DOWN RESISTOR ON EACH RS-232 INPUT.
Figure 19. ADM233L Typical Operating Circuit
ADM234L
1
F
+6.3V
1
F
+16V
C1+
C1–
C2–
C2+
T1IN
T1
T1OUT
T2IN
T2
T2OUT
RS-232
OUTPUTS
V–
1
F
+16V
+10V TO –10V
VOLTAGE
INVERTER
1
F
+6.3V
1
F
+6.3V
5V INPUT
V+
VCC
+5V TO +10V
VOLTAGE
DOUBLER
T3
T4
T3IN
T4IN
GND
T3OUT
T4OUT
00070-0-011
TTL/CMOS
INPUTS1
1INTERNAL 400k
PULL-UP RESISTOR ON EACH TTL/CMOS INPUT.
Figure 20. ADM234L Typical Operating Circuit
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