ADM1181A:  EMI/EMC Compliant, ±15 kV ESD Protected, RS-232 Line Drivers/Receivers

The ADM202E and ADM1181A are robust, high speed, 2- channel RS232/V.28 interface devices that operate from a single +5 V power supply. Both products are suitable for operation in harsh electrical ...More

ADM1181A:  EMI/EMC Compliant, ±15 kV ESD Protected, RS-232 Line Drivers/Receivers

Product Description

The ADM202E and ADM1181A are robust, high speed, 2- channel RS232/V.28 interface devices that operate from a single +5 V power supply. Both products are suitable for operation in harsh electrical environments and are compliant with the EU directive on EMC (89/336/EEC). Both the level of electromagnetic emissions and immunity are in compliance. EM immunity includes ESD protection in excess of ±15 kV on all I/O lines, Fast Transient burst protection (1000-4-4) and Radiated Immunity (1000-4-3). EM emissions include radiated and conducted emissions as required by Information Technology Equipment EN55022, CISPR22.

The ADM202E and ADM1181A conform to the EIA-232E and CCITT V.28 specifications and operate at data rates up to 230 kbps.

Four external 0.1 µF charge pump capacitors are used for the voltage doubler/inverter permitting operation from a single +5 V supply.

The ADM202E provides a robust pin-compatible upgrade for existing ADM202, ADM232L or MAX202E/MAX232E sockets. It is available in a 16-pin DIP, wide and narrow SO and also a space saving TSSOP package. The TSSOP package gives a 44% space saving over SOIC.

The ADM1181A provides a robust pin compatible upgrade for the LTC1181A, and it is available in 16-pin DIP and 16-lead SO packages.

Features

  • ESD Protection to IEC1000-4-2 (801.2)
  • ±8 kV: Contact Discharge
  • ±15 kV: Human Body Model
  • EFT Fast Transient Burst Immunity
    (IEC1000-4-4)
  • Low EMI Emissions (EN55022)
  • 230 kbits/s Data Rate Guaranteed
  • TSSOP Package Option
  • Upgrade for MAX202E, 232E, LT1181A
  • Complies with 89/336/EEC EMC Directive

Diagrams

ADM1181A Diagram
Functional Block Diagram for ADM1181A

Specifications

Protocols RS-232
#Tx 2
# Rx 2
Data Rate 230kbps
Max Pos Supply +5.5V
15 kV ESD Yes
Low Power Shutdown No
# Rx Active in Shutdown n/a
# Capacitors 4
Capacitor Size 0.1µF
Operating Temp Range -40 to +85
Available Packages DIP,SOIC

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