Overview
The ADM3222ARSZ is a high-speed, 2-channel RS-232/V.28 interface device produced by Analog Devices Inc. This component is designed to operate from a single 3.3 V power supply, making it ideal for battery-powered portable instruments and other low-power applications. The ADM3222ARSZ conforms to the EIA-232E and CCITT V.28 specifications and supports data rates up to 460 kbps. It features a charge pump voltage converter, level-shifting transmitters, and receivers, allowing for RS-232 signal levels while operating from a single 3.3 V supply.
Key Specifications
| Parameter | Value |
|---|---|
| Package | 20-SSOP |
| Supply Voltage | 3 V to 5.5 V |
| Data Rate | Up to 460 kbps |
| Number of Drivers | 2 |
| Number of Receivers | 2 |
| Duplex | Full Duplex |
| Minimum Operating Temperature | -40°C |
| Maximum Operating Temperature | +85°C |
| Current @ Pmpp | 2.1 mA |
| Propagation Delay Time | 340 ns |
| Mounting Style | SMD/SMT |
Key Features
- Operates from a single 3.3 V power supply using a charge pump voltage converter.
- Supports data rates up to 460 kbps, exceeding EIA/RS-232E specifications.
- Features shutdown and enable circuitry for power management and receiver control.
- Includes internal 5 kΩ pull-down resistors on RS-232 inputs and Schmitt-trigger inputs for error-free reception.
- Protected against overvoltages up to ±30 V.
- CMOS technology for low power consumption and extended battery life in portable applications.
Applications
- Battery-powered portable instruments.
- Industrial automation.
- High-speed data links, including ISDN modem standards.
- Embedded systems requiring low power and high data rate RS-232 communication.
Q & A
- What is the operating voltage range of the ADM3222ARSZ?
The ADM3222ARSZ operates from a single 3 V to 5.5 V power supply.
- What is the maximum data rate supported by the ADM3222ARSZ?
The ADM3222ARSZ supports data rates up to 460 kbps.
- How many drivers and receivers does the ADM3222ARSZ have?
The ADM3222ARSZ has 2 drivers and 2 receivers.
- What is the package type of the ADM3222ARSZ?
The ADM3222ARSZ is available in a 20-SSOP package.
- Does the ADM3222ARSZ have shutdown and enable features?
Yes, the ADM3222ARSZ includes shutdown and enable circuitry for power management and receiver control.
- What is the propagation delay time of the ADM3222ARSZ?
The propagation delay time of the ADM3222ARSZ is 340 ns.
- Is the ADM3222ARSZ protected against overvoltages?
Yes, the ADM3222ARSZ is protected against overvoltages up to ±30 V.
- What technology is used in the ADM3222ARSZ to minimize power consumption?
The ADM3222ARSZ uses CMOS technology to minimize power consumption.
- What are some typical applications of the ADM3222ARSZ?
Typical applications include battery-powered portable instruments, industrial automation, and high-speed data links.
- Does the ADM3222ARSZ have internal pull-down resistors on the RS-232 inputs?
Yes, the ADM3222ARSZ includes internal 5 kΩ pull-down resistors on the RS-232 inputs.
- What is the operating temperature range of the ADM3222ARSZ?
The operating temperature range of the ADM3222ARSZ is from -40°C to +85°C.
