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ADM223 数据表(PDF) 7 Page - Analog Devices |
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ADM223 数据表(HTML) 7 Page - Analog Devices |
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7 / 16 page ![]() ADM223/ADM230L–ADM241L –7– REV. B 1 2 3 7 24 23 22 18 8 9 10 17 16 15 11 12 14 13 4 5 21 20 6 19 TOP VIEW (Not to Scale) ADM236L T1IN T2IN T1OUT T2OUT T3OUT VCC GND SD EN R3IN R1IN R2IN R2OUT R1OUT R3OUT T3IN T4IN T4OUT V+ V– C1+ C1– C2+ C2– Figure 13. ADM236L DIP/SOIC Pin Configuration 1 2 3 7 24 23 22 18 8 9 10 17 16 15 11 12 14 13 4 5 21 20 6 19 TOP VIEW (Not to Scale) ADM237L T1IN T2IN T1OUT T2OUT T3OUT VCC GND R3IN R1IN R2IN R2OUT R1OUT R3OUT T3IN T4IN T4OUT V+ V– C1+ C1– C2+ C2– T5IN T5OUT Figure 15. ADM237L DIP/SOIC Pin Configuration T1IN T1OUT T2IN T2OUT TTL/CMOS INPUTS* RS-232 OUTPUTS T3IN T4IN R1OUT R1IN R2OUT R2IN TTL/CMOS OUTPUTS RS-232 INPUTS** R3IN R3OUT T3OUT T4OUT * INTERNAL 400k PULL-UP RESISTOR ON EACH TTL/CMOS INPUT. ** INTERNAL 5k PULL-DOWN RESISTOR ON EACH RS-232 INPUT. EN 1 F 6.3V 1 F 16V C1+ C1– C2– C2+ V– 1 F 16V +10V TO –10V VOLTAGE INVERTER 1 F 6.3V 1 F 6.3V 5V INPUT VCC +5V TO +10V VOLTAGE DOUBLER T1 T2 T3 T4 R1 R2 R3 V+ SD ADM236L GND Figure 14. ADM236L Typical Operating Circuit T1IN T1OUT T2IN T2OUT TTL/CMOS INPUTS* RS-232 OUTPUTS T3IN T4IN T5IN R1OUT R1IN R2OUT R2IN TTL/CMOS OUTPUTS RS-232 INPUTS** R3IN R3OUT T3OUT T4OUT T5OUT * INTERNAL 400k PULL-UP RESISTOR ON EACH TTL/CMOS INPUT. ** INTERNAL 5k PULL-DOWN RESISTOR ON EACH RS-232 INPUT. 1 F 6.3V 1 F 16V C1+ C1– C2– C2+ V– 1 F 16V +10V TO –10V VOLTAGE INVERTER 1 F 6.3V 1 F 6.3V 5V INPUT VCC +5V TO +10V VOLTAGE DOUBLER T1 T2 T3 T4 T5 R1 R2 R3 V+ ADM237L 20 GND Figure 16. ADM237L Typical Operating Circuit OBSOLETE |
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