GENERAL DESCRIPTION
The ADM222,ADM232A,ADM242 are a family of high speed
RS-232 line drivers/receivers offering transmission
rates up to 200kB/s. Operating from a single +5V
power supply,a highly efficient on-chip charge pump
using small (0.1µF)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 which combines low power CMOS with high
speed bipolar circuitry. This allows for transmission rates
up to 200kB/s yet minimizes the quiescent power supply
current to under 5mA.
The ADM232A is a pin-compatible, high speed upgrade for the
AD232 and for the ADM232L. It is available in 16-pin DIP and
in both narrow and wide surface mount (SOIC) packages.
The ADM222 contains an additional shutdown (SHDN) function
which may be used to disable the device thereby reducing
the supply current to 0.1µA.During shutdown, all transmit/
receive functions are disabled. The ADM222 is available in
18-pin 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
curent to 0.1mA. 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-pin DIP and in a wide surface mount (SOIC)
package.
FEATURES
200kB/s Transmission Rate
Small (0.1µF)Charge Pump Capacitors
Single 5V Power Supply
Meets All EIA-232-E and V.28 Specifications
Two Drivers and Two Receivers
On-Board DC-DC Converters
±9V Output Swing with +5V Supply
±30V Receiver Input Levels
Pin Compatible with MAX222/MAX232A/MAX242
APPLICATIONS
Computers
Peripherals
Modems
Printers
Instruments
FUNCTIONAL BLOCK DIAGRAM
ADM222 DIP & SOIC Pin Configurations
ADM232A DIP/SOIC Pin Configuration
ADM242 DIP/SOIC Pin Configuration
P/N Temp(0℃) Package
ADM222AN –40℃ to +85℃ DIP-18
ADM222AR –40℃ to +85℃ SOP18
ADM232AAN –40℃ to +85℃ DIP-16
ADM232AARN –40℃ to +85℃ SOP16
ADM232AARW –40℃ to +85℃ SOP16
ADM242AN –40℃ to +85℃ DIP-18
ADM242AR –40℃ to +85℃ SOP18
FROM: Company Name: Aunytor Electronic (HK) Co.,Ltd
Contact Person: Charlotte
Skype: Aunytor
whatsapp：+86 13537622113
Email: carrot@aunytorchips.com