Overview
The ADM3222ARSZ-REEL is a high-speed, 2-channel RS-232/V.28 interface transceiver produced by Analog Devices Inc. This component is designed to operate from a single 3.3 V power supply, making it ideal for low-power and battery-powered applications. The ADM3222ARSZ-REEL features advanced circuitry, including a charge pump voltage converter, level-shifting transmitters, and receivers, allowing it to maintain RS-232 voltage levels while operating from a low-voltage supply.
Key Specifications
| Parameter | Value |
|---|---|
| Part Number | ADM3222ARSZ-REEL |
| Manufacturer | Analog Devices Inc. |
| Category | Interface ICs - Drivers, Receivers, Transceivers |
| Protocol | RS-232 |
| Number of Drivers/Receivers | 2/2 |
| Duplex | Full |
| Receiver Hysteresis | 400 mV |
| Data Rate | Up to 460 kbps |
| Voltage - Supply | 3 V ~ 5.5 V |
| Operating Temperature | -40°C ~ 85°C |
| Mounting Type | Surface Mount |
| Package / Case | 20-SSOP (0.209", 5.30mm Width) |
Key Features
- Low Power Operation: Operates from a single 3.3 V power supply, making it suitable for battery-powered portable instruments.
- High-Speed Data Transmission: Supports data rates up to 460 kbps, meeting EIA-232E and CCITT V.28 specifications.
- Shutdown Facility: The ADM3222 includes enable and shutdown circuitry, allowing the receiver outputs to be three-stated and the charge pump and transmitter outputs to be powered down, reducing quiescent current to less than 0.5 μA.
- Schmitt-Trigger Inputs: Receivers have Schmitt-trigger inputs with a hysteresis level of 0.4 V, ensuring error-free reception for noisy inputs and inputs with slow transition times.
- Protection Against Overvoltages: Protected against overvoltages up to ±30 V.
Applications
- Portable Instruments: Ideal for battery-powered devices due to its low power consumption.
- ISDN Modems: Suitable for high-speed data links required by ISDN modem standards.
- Industrial Automation: Used in various industrial automation systems requiring reliable and high-speed serial communication.
- Embedded Systems: Commonly used in embedded systems that require RS-232 interface capabilities.
Q & A
- What is the primary function of the ADM3222ARSZ-REEL?
The ADM3222ARSZ-REEL is a 2-channel RS-232/V.28 interface transceiver, providing both transmitter and receiver functions for serial communication.
- What is the operating voltage range of the ADM3222ARSZ-REEL?
The component operates from a single 3.3 V power supply and can tolerate supply voltages between 3 V and 5.5 V.
- What is the maximum data rate supported by the ADM3222ARSZ-REEL?
The ADM3222ARSZ-REEL supports data rates up to 460 kbps.
- What type of package does the ADM3222ARSZ-REEL come in?
The component is packaged in a 20-SSOP (0.209", 5.30mm Width).
- Does the ADM3222ARSZ-REEL have any shutdown features?
Yes, it includes enable and shutdown circuitry to power down the charge pump and transmitter outputs, reducing quiescent current.
- What is the operating temperature range of the ADM3222ARSZ-REEL?
The component operates within a temperature range of -40°C to 85°C.
- Is the ADM3222ARSZ-REEL protected against overvoltages?
Yes, it is protected against overvoltages up to ±30 V.
- What type of inputs do the receivers have?
The receivers have Schmitt-trigger inputs with a hysteresis level of 0.4 V.
- Can the ADM3222ARSZ-REEL be used in battery-powered devices?
Yes, it is suitable for battery-powered devices due to its low power consumption.
- What are some common applications of the ADM3222ARSZ-REEL?
Common applications include portable instruments, ISDN modems, industrial automation, and embedded systems.
