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ADM239LJN Datasheet(PDF) 10 Page - Analog Devices |
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ADM239LJN Datasheet(HTML) 10 Page - Analog Devices |
10 / 16 page ADM223/ADM230L–ADM241L –10– REV. 0 PIN FUNCTION DESCRIPTION Mnemonic Function VCC Power Supply Input 5 V ± 10% (+5 V ± 5% ADM233L, ADM235L). V+ Internally generated positive supply (+10 V nominal) on all parts except ADM231L and ADM239L. ADM231L, ADM239L requires external 7.5 V to 13.2 V supply. V– Internally generated negative supply (–10 V nominal). GND Ground pin. Must be connected to 0 V. C+ (ADM231L and ADM239L only). External capacitor (+ terminal) is connected to this pin. C– (ADM231L and ADM239L only). External capacitor (– terminal) is connected to this pin. C1+ (ADM230L, ADM232L, ADM234L, ADM236L, ADM237L, ADM238L, ADM241L) External capacitor (+ terminal) is connected to this pin. (ADM233L) The capacitor is connected internally and no external connection to this pin is required. C1– (ADM230L, ADM232L, ADM234L, ADM236L, ADM237L, ADM238L, ADM241L) External capacitor (– terminal) is connected to this pin. (ADM233L) The capacitor is connected internally and no external connection to this pin is required. C2+ (ADM230L, ADM232L, ADM234L, ADM236L, ADM237L, ADM238L, ADM241L) External capacitor (+ terminal) is connected to this pin. (ADM233L) Internal capacitor connections, Pins 11 and 15 must be connected together. C2– (ADM230L, ADM232L, ADM234L, ADM236L, ADM237L, ADM238L, ADM241L) External capacitor (– terminal) is connected to this pin. (ADM233L) Internal capacitor connections, Pins 10 and 16 must be connected together. TIN Transmitter (Driver) Inputs. These inputs accept TTL/CMOS levels. An internal 400 k Ω pull-up resistor to V CC 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 connected on each input. ROUT Receiver Outputs. These are TTL/CMOS levels. EN/EN Enable Input. Active low on ADM235L, ADM236L, ADM239L, ADM241L. Active high ADM223. This input is used to enable/disable the receiver outputs. With EN = low (EN = high ADM223), the receiver outputs are enabled. With EN = high (EN = low ADM223), 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 ADM235L, ADM236L, ADM241L. Active low on ADM223. With SD = high on the ADM235L, ADM236L, ADM241L, 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 ADM223, 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 I. ADM235L, ADM236L, ADM241L Truth Table Transmitters Receivers SD EN Status T1–T5 R1–R5 0 0 Normal Operation Enabled Enabled 0 1 Normal Operation Enabled Disabled 1 0 Shutdown Disabled Disabled Table II. ADM223 Truth Table Transmitters Receivers SD EN Status T1–T4 R1–R3 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 |
Similar Part No. - ADM239LJN |
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Similar Description - ADM239LJN |
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