ADM1385 High-Speed, 2-Channel RS232/V.28 Interface Devices

The ADM3202 is available in a 16-lead DIP, narrow and wide SO as well as a space saving TSSOP package. The ADM3222 is available in 18 lead DIP , SO and in 20 lead SSOP and TSSOP. The ADM1385 is available in a 20 lead SSOP package and is pin compatible with the LTC1385 CG.

The ADM3202/ADM3222/ADM1385 are high speed, 2-channel RS232/V.28 interface devices which operate from a single +3.3 V power supply. Low power consumption and a shutdown facility (ADM3222/ADM1385) makes them ideal for battery powered portable instruments.

The ADM3202/ADM3222/ADM1385 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 +3.3 V supply.

The ADM3222/ADM1385 contain additional enable and shutdown circuitry. The EN input may be used to three-state the receiver outputs. The SD input is used to power down the charge pump and transmitter outputs reducing the quiescent current to less than 1 µA. The receivers remain enabled during shutdown unless disabled using EN.

The ADM3202 is available in a 16-lead DIP, narrow and wide SO as well as a space saving TSSOP package. The ADM3222 is available in 18 lead DIP , SO and in 20 lead SSOP and TSSOP. The ADM1385 is available in a 20 lead SSOP package and is pin compatible with the LTC1385 CG.

Features and Benefits
  • Meets EIA-232E Specifications
  • 0.1 µF Charge Pump Capacitors
  • Low Power Shutdown (ADM3222E and ADM1385)
  • DIP, SO, SOIC, SSOP and TSSOP Package Options
  • 460 kbps Data Rate
  • Specified at 3.3 V
  • Upgrade for MAX3222/32 and LTC1385
  • ESD Protection to IEC1000-4-2 (801.2) on RS-232 Pins (ADM3202 Only) ±8 kV: Contact Discharge ±15 kV: Air-Gap Discharge
Interface & Isolation
Data Sheets
Documentnote
ADM3202/ADM3222/ADM1385: Low Power, 3.3 V, RS-232 Line Drivers/Receivers Data Sheet (Rev. E)PDF 333 kB
Order Information
Part NumberPackagePacking QtyTemp RangePrice 100-499Price 1000+RoHS
ADM1385ARS Obsolete20 ld SSOPOTH 66-40 to 85C00N
ADM1385ARSZ Production20 ld SSOPOTH 66-40 to 85C1.581.42Y
ADM1385ARSZ-REEL Production20 ld SSOPREEL 1500-40 to 85C01.42Y
ADM1385ARSZ-REEL7 Production20 ld SSOPREEL 500-40 to 85C01.42Y
Reference Materials
ADM3202/ADM3222/ADM1385: Low Power, 3.3 V, RS-232 Line Drivers/Receivers Data Sheet (Rev. E) adm3202
RS-232 Transceivers Applications Bulletin (Summer 2008) adm3251e
RS-232 Transceivers Cross Reference Guide adm2486
ADI RS-485/RS-422 Cross Reference Guide adm2486
Interface Primer adm3491