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ADM211 数据表(PDF) 7 Page - Analog Devices |
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ADM211 数据表(HTML) 7 Page - Analog Devices |
7 / 12 page ADM205–ADM211/ADM213 REV. 0 –7– PIN FUNCTION DESCRIPTION Mnemonic Function VCC Power Supply Input 5 V ± 10% (+5 V ± 5% ADM205). V+ Internally generated positive supply (+10 V nominal) on all parts except ADM209. ADM209 requires external 9 V to 13.2 V supply. V– Internally generated negative supply (–10 V nominal). GND Ground pin. Must be connected to 0 V. C+ (ADM209 only) External capacitor (+ terminal) is connected to this pin. C– (ADM209 only) External capacitor (– terminal) is connected to this pin. C1+ (ADM206, ADM207, ADM208, ADM211, ADM213) External capacitor (+ terminal) is connected to this pin. C1– (ADM206, ADM207, ADM208, ADM211, ADM213) External capacitor (– terminal) is connected to this pin. C2+ (ADM206, ADM207, ADM208, ADM211, ADM213) External capacitor (+ terminal) is connected to this pin. C2– (ADM206, ADM207, ADM208, ADM211, ADM213) External capacitor (– terminal) is connected to this pin. TIN Transmitter (Driver) Inputs. These inputs accept TTL/CMOS levels. An internal 400 k Ω pull-up resistor to Vcc is connected on each input. TOUT Transmitter (Driver) Outputs. These are RS-232 levels (typically ±10 V). RIN Receiver Inputs. These inputs accept RS-232 signal levels. An internal 5 k Ω pull-down resistor to GND is con- nected on each input. ROUT Receiver Outputs. These are TTL/CMOS levels. EN /EN Enable Input. Active low on ADM205, ADM206, ADM209, ADM211. Active high on ADM213. This input is used to enable/disable the receiver outputs. With EN = Low (EN = High ADM213), the receiver outputs are en- abled. With EN =High (EN = low ADM213), the outputs are placed in a high impedance state. This facility is useful for connecting to microprocessor systems. SD/SD Shutdown Input. Active high on ADM205, ADM206, ADM211. Active low on ADM213. With SD = high on the ADM205, ADM206, ADM211, the charge pump is disabled, the receiver outputs are placed in a high impedance state and the driver outputs are turned off. With SD low on the ADM213, the charge pump is disabled, the driver outputs are turned off and all receivers except R4 and R5 are placed in a high impedance state. In shutdown, the power consumption reduces to 5 µW. NC No Connect. No connections are required to this pin. Table II. ADM205, ADM206, ADM211 Truth Table SD EN Status Transmitters T1–T5 Receivers R1–R5 0 0 Normal Operation Enabled Enabled 0 1 Normal Operation Enabled Disabled 1 0 Shutdown Disabled Disabled Table III. ADM213 Truth Table SD EN Status Transmitters T1-T4 Receivers R1-R3 Receivers R4, R5 0 0 Shutdown Disabled Disabled Disabled 0 1 Shutdown Disabled Disabled Enabled 1 0 Normal Operation Enabled Disabled Disabled 1 1 Normal Operation Enabled Enabled Enabled |
类似零件编号 - ADM211 |
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类似说明 - ADM211 |
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