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ADM208EARSZ1 数据表(PDF) 7 Page - Analog Devices |
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ADM208EARSZ1 数据表(HTML) 7 Page - Analog Devices |
7 / 20 page ADM206E/ADM207E/ADM208E/ADM211E/ADM213E Rev. E | Page 7 of 20 TOP VIEW (Not to Scale) 28 27 26 25 24 23 22 21 20 19 18 17 16 15 1 2 3 4 5 6 7 8 9 10 11 12 13 14 ADM213E T3OUT T1OUT T4OUT R3IN T2OUT R2IN R3OUT R2OUT T2IN EN R4IN1 T1IN R1OUT R4OUT1 T4IN R1IN GND T3IN R5OUT1 VCC C1+ R5IN1 V– V+ C1– C2– C2+ 1ACTIVE IN SHUTDOWN. SHDN Figure 10. ADM213E Pin Configuration 0.1µF 16V 0.1µF 16V +5V TO+10V VOLTAGE DOUBLER +10V TO –10V VOLTAGE INVERTER TTL/CMOS INPUTS1 TTL/CMOS OUTPUTS RS-232 OUTPUTS RS-232 INPUTS2 + + 0.1µF 5V INPUT + + + T1 T2 T3 T4 R1 R2 R3 R4 R5 GND ADM213E T1IN T2IN T3IN T4IN R1OUT R2OUT R3OUT R4OUT3 R5OUT3 EN T1OUT T2OUT T3OUT T4OUT R1IN R2IN R3IN R4IN3 R5IN3 C1+ C1– C2+ C2– VCC V+ V– SHDN 1 INTERNAL 400kΩ PULL-UP RESISTOR ON EACH TTL/CMOS INPUT. 2 INTERNAL 5kΩ PULL-DOWN RESISTOR ON EACH RS-232 INPUT. 3 ACTIVE IN SHUTDOWN. 23 25 4 9 18 3 2 27 28 1 17 11 13 22 24 5 8 19 6 7 26 21 20 15 16 12 14 10 0.1µF 6.3V 0.1µF 16V Figure 11. ADM213E Typical Operating Circuit Table 6. Pin Function Descriptions Mnemonic Function VCC Power Supply Input (5 V ± 10%). V+ Internally Generated Positive Supply (+9 V nominal). V– Internally Generated Negative Supply (−9 V nominal). GND Ground Pin. Must be connected to 0 V. C1+, C1– External Capacitor 1 is connected between these pins. A 0.1 μF capacitor is recommended, but larger capacitors (up to 47 μF) can be used. C2+, C2– External Capacitor 2 is connected between these pins. A 0.1 μF capacitor is recommended, but larger capacitors (up to 47 μF) can be used. TIN Transmitter (Driver) Inputs. These inputs accept TTL/CMOS levels. An internal 400 kΩ pull-up resistor to VCC is connected on each input. TOUT Transmitter (Driver) Outputs. These are RS-232 signal levels (typically ±9 V). RIN Receiver Inputs. These inputs accept RS-232 signal levels. An internal 5 kΩ pull-down resistor to GND is connected on each input. ROUT Receiver Outputs. These are TTL/CMOS output logic levels. EN/EN Receiver Enable (active high on ADM213E, active low on ADM211E). This input is used to enable/disable the receiver outputs. With EN = low for the ADM211E (EN = high for the ADM213E), the receiver outputs are enabled. With EN = high for the ADM211E (EN = low for the ADM213E), the receiver outputs are placed in a high impedance state. (See Table 3 and Table 4.) SHDN/SHDN Shutdown Control (active low on ADM213E, active high on ADM211E). When the ADM211E is in shutdown, the charge pump is disabled, the transmitter outputs are turned off, and all receiver outputs are placed in a high impedance state. When the ADM213E is in shutdown, the charge pump is disabled, the transmitter outputs are turned off, and Receiver R1 to Receiver R3 are placed in a high impedance state; Receiver R4 and Receiver R5 on the ADM213E continue to operate normally during shutdown. (See Table 3 and Table 4.) Power consumption for all parts reduces to 5 μW in shutdown. |
类似零件编号 - ADM208EARSZ1 |
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类似说明 - ADM208EARSZ1 |
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