ADM238LJRZ1 Просмотр технического описания (PDF) - Analog Devices
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ADM238LJRZ1 Datasheet PDF : 20 Pages
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1µF
+16V
TTL/CMOS
INPUTS1
T1IN
T2IN
T3IN
R1OUT
R2OUT
TTL/CMOS
OUTPUTS R3OUT
R4OUT
R5OUT
EN
+5V INPUT
1µF
VCC
C1+ +12V TO –12V
VOLTAGE
V+
C1– INVERTER
V–
+7.5V TO +13.2V
INPUT
1µF
+16V
T1
T1OUT
T2
T2OUT
RS-232
OUTPUTS
T3
T3OUT
R1
R1IN
R2
R2IN
R3
R3IN
RS-232
INPUTS2
R4
R4IN
R5
R5IN
GND ADM239L
NC
1INTERNAL 400kΩ PULL-UP RESISTOR ON EACH TTL/CMOS INPUT.
2INTERNAL 5kΩ PULL-DOWN RESISTOR ON EACH RS-232 INPUT.
Figure 24. ADM239L Typical Operating Circuit
ADM231L–ADM234L/ADM236L–ADM241L
1µF
+16V
1µF
+16V
T1IN
TTL/CMOS
INPUTS1
T2IN
T3IN
T4IN
R1OUT
R2OUT
TTL/CMOS
OUTPUTS R3OUT
R4OUT
R5OUT
EN
C1+ +5V TO +10V VCC
VOLTAGE
C1– DOUBLER
V+
C2+ +10V TO –10V
VOLTAGE
V–
C2– INVERTER
T1
T2
T3
T4
R1
R2
R3
R4
R5
GND ADM241L
+5V INPUT
1µF
+6.3V
1µF
+6.3V
1µF
+16V
T1OUT
T2OUT
T3OUT
RS-232
OUTPUTS
T4OUT
R1IN
R2IN
R3IN
RS-232
INPUTS2
R4IN
R5IN
SD
1INTERNAL 400kΩ PULL-UP RESISTOR ON EACH TTL/CMOS INPUT.
2INTERNAL 5kΩ PULL-DOWN RESISTOR ON EACH RS-232 INPUT.
Figure 25. ADM241L Typical Operating Circuit
Rev. C | Page 11 of 20
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