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

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) ...More

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

Product Description

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

  • 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

Diagrams

ADM1385 Diagram
Functional Block Diagram for ADM1385

Характеристики

Protocols RS-232
#Tx 2
# Rx 2
Data Rate 460kbps
Max Pos Supply +3.6V
15 kV ESD No
Low Power Shutdown Yes
# Rx Active in Shutdown 2
# Capacitors 4
Capacitor Size 0.1µF
Operating Temp Range -40 to +85
Available Packages SOP

Посмотреть другие компоненты

Part# Min Pos Supply Data Rate #Tx # Rx ESD-Protection Low Pwr Shutdown # Rx Active in Shutdown # Capacitors Capacitor Size Available Packages Icc Unloaded (max) Price* (1000-4999) Product Description
ADM3251E +4.5 460kbps 1 1 15 kV No n/a 5 0.1µF SOIC 110mA $2.99 Isolated Single Channel, RS-232 Line Driver/Receiver
ADM3312E +2.7 460kbps 3 3 15 kV Yes 1 5 0.1µF CSP, SOP 1mA $1.47 15 kV ESD Protected, 2.7V to 3.6V, Serial Port Transceivers with Green Idle™
ADM3310E +2.7 460kbps 3 5 15 kV Yes 2 5 0.1µF CSP, SOP 850µA $1.52 15 kV ESD Protected, 2.7V to 3.6V, Serial Port Transceivers with Green Idle™
ADM3311E +2.7 460kbps 3 5 15 kV Yes 1 5 0.1µF CSP, SOP 1mA $1.72 15 kV ESD Protected, 2.7V to 3.6V, Serial Port Transceivers with Green Idle™
ADM3315E +2.7 460kbps 3 3 15 kV Yes 1 5 0.1µF CSP, SOP 850µA $1.52 15 kV ESD Protected, 2.7V to 3.6V, Serial Port Transceivers with Green Idle™
ADM3307E +2.7 1Mbps 5 3 15 kV Yes 1 5 0.1µF CSP, SOP 1.5mA $1.47 15 kV ESD Protected, 2.7V to 3.6V, Serial Port Transceivers with Green Idle™
ADM560 +3 116kbps 4 5 --- Yes 2 4 1µF SOIC, SOP 5mA $2.41 Ultralow Power, +3.3V, RS-232 Notebook PC Serial Port Drivers/Receivers
ADM561 +3 116kbps 4 5 --- Yes 0 4 1µF SOIC, SOP 5mA $2.41 Ultralow Power, +3.3V, RS-232 Notebook PC Serial Port Drivers/Receivers
ADM3101E +3 460kbps 1 1 15 kV No n/a 4 0.1µF CSP 5mA $0.89 3.3 V, Single Channel RS-232 Line Driver/Receiver
ADM3232E +3 460kbps 2 2 15 kV No n/a 5 0.1µF SOIC, SOP 3mA $1.37 ±15 kV ESD Protected, 3.3 V, RS-232 Line Driver/Receiver
ADM1385 +3 460kbps 2 2 --- Yes 2 4 0.1µF SOP 3mA $1.42