ADM242ARZ SOP-18 Integrated circuit Chip IC Electronics China Golden IC Supplier

High-Speed, 5 V, 0.1 F CMOS RS-232 Drivers/Receivers

FEATURES

200 kB/s Transmission Rate Small (0.1 F)

Charge Pump Capacitors Single 5 V Power Supply Meets

All EIA-232-E and V.28 Specifications

Two Drivers and Two Receivers On-Board DC-DC Converters 9 V

Output Swing with 5 V Supply 30 V Receiver Input Levels Pin

Compatible with MAX222/MAX232A/MAX242

APPLICATIONS

Computers Peripherals Modems Printers Instruments

ABSOLUTE MAXIMUM RATINGS* (TA = 25°C unless otherwise noted)

VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 V

V+ . . . . . . . . . . . . . . . . . . . . . . . . . . . (VCC – 0.3 V) to +13 V

V– . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +0.3 V to –13 V

Input Voltages TIN . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to (VCC + 0.3 V)

RIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±30 V

Output Voltages TOUT . . . . . . . . . . . . . . . . . . . (V+, +0.3 V) to (V–, –0.3 V)

ROUT . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to (VCC + 0.3 V)

Short Circuit Duration TOUT . . . . . . . . . . Continuous

Power Dissipation N-16 . . . . . . . . . . . . . . . . . . . . . . 400 mW

(Derate 7.5 mW/°C above 70°C) θJA, Thermal Impedance . . . . . . . . . . . . . . . . . . . . 80°C/W

Power Dissipation R-16N . . . . . . . . . . . . . . . . . . . . . 400 mW

(Derate 7 mW/°C above 70°C) θJA, Thermal Impedance . . . . . . . . . . . . . . . . . . . . 80°C/W

Power Dissipation R-16W . . . . . . . . . . . . . . . . . . . . . 400 mW

(Derate 7 mW/°C above 70°C) θJA, Thermal Impedance . . . . . . . . . . . . . . . . . . . . 80°CW

Power Dissipation N-18 . . . . . . . . . . . . . . . . . . . . . . 400 mW

(Derate 7 mW/°C above 70°C) θJA, Thermal Impedance . . . . . . . . . . . . . . . . . . . . 80°C/W

Power Dissipation R-18W . . . . . . . . . . . . . . . . . . . . . 400 mW

(Derate 7 mW/°C above 70°C) θJA, Thermal Impedance . . . . . . . . . . . . . . . . . . . . 80°C/W

Operating Temperature Range Industrial (A Version) . . . . . . . . . . . . . . . –40°C to +85°C

Storage Temperature Range . . . . . . . . . . . . –65°C to +150°C

Lead Temperature (Soldering, 10 sec) . . . . . . . . . . . . 300°C

Vapor Phase (60 sec) . . . . . . . . . . . . . . . . . . . . . . . . 215°C

Infrared (15 sec) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 220°C

GENERAL DESCRIPTION

The ADM222, ADM232A, ADM242 are a family of high-speed RS-232 line drivers/receivers offering transmission rates up to 200 kB/s. Operating from a single 5 V power supply, a highly efficient on-chip charge pump using small (0.1 µF) external capacitors allows RS-232 bipolar levels to be developed. Two RS-232 drivers and two RS-232 receivers are provided on each device. The devices are fabricated on BiCMOS, an advanced mixed technology process that combines low power CMOS with highspeed bipolar circuitry. This allows for transmission rates up to 200 kB/s, yet minimizes the quiescent power supply current to under 5 mA. The ADM232A is a pin-compatible, high-speed upgrade for the AD232 and for the ADM232L. It is available in 16-lead DIP and in both narrow and wide surface-mount (SOIC) packages. The ADM222 contains an additional shutdown (SHDN) function that may be used to disable the device, thereby reducing the supply current to 0.1 µA. During shutdown, all transmit/receive functions are disabled. The ADM222 is available in 18-lead DIP and in a wide surface-mount (SOIC) package. The ADM242 combines both shutdown (SHDN) and enable (EN) functions. The shutdown function reduces the supply current to 0.1 mA. During shutdown, the transmitters are disabled but the receivers continue to operate normally. The enable function allows the receiver outputs to be disabled thereby facilitating sharing a common bus. The ADM242 is available in 18-lead DIP and in a wide surface-mount (SOIC) package.

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