Overview
The ADM3222ARUZ is a low-power, 3.3V RS-232 line driver/receiver produced by Analog Devices Inc. This transceiver is designed for high-speed, 2-channel RS-232/V.28 interface applications and operates from a single 3.3V power supply. It is particularly suited for battery-powered portable instruments due to its low power consumption and shutdown facility. The device conforms to EIA-232E and CCITT V.28 specifications and supports data rates up to 460Kbps.
Key Specifications
| Specification | Value |
|---|---|
| Operating Voltage Range | 3V to 5.5V |
| Number of Drivers | 2 |
| Number of Receivers | 2 |
| Data Rate | Up to 460Kbps |
| Package Type | 20-lead Thin Shrink Small Outline Package (TSSOP) |
| Temperature Range | -40°C to +85°C |
| ESD Protection | ±8 kV (Contact), ±15 kV (Air Gap), ±15 kV (HBM) |
| VCC Power Supply Current | 1.3mA typical at no load |
| Transition Region Slew Rate | 10V/μs typical |
| Transmitter Propagation Delay | 0.3μs typical at RL = 3Kohm, CL = 1000pF |
| Receiver Propagation Delay | 0.4μs (TPHL), 0.4μs (TPLH) typical |
Key Features
- Low power consumption with a shutdown facility to reduce quiescent current to less than 0.5μA.
- Active-low EN input to three-state the receiver outputs and active-low SD input to power down the charge pump and transmitter outputs.
- Four external 0.1μF charge pump capacitors for voltage doubler/inverter.
- Full duplex operation.
- ESD protection up to ±15 kV.
- Conforms to EIA-232E and CCITT V.28 specifications.
Applications
- General-purpose RS-232 data links.
- Portable instruments.
- Printers.
- Palmtop computers and PDAs.
Q & A
- What is the operating voltage range of the ADM3222ARUZ?
The operating voltage range is from 3V to 5.5V. - How many drivers and receivers does the ADM3222ARUZ have?
The device has 2 drivers and 2 receivers. - What is the maximum data rate supported by the ADM3222ARUZ?
The maximum data rate is up to 460Kbps. - What type of package does the ADM3222ARUZ come in?
The device comes in a 20-lead Thin Shrink Small Outline Package (TSSOP). - What is the temperature range for the ADM3222ARUZ?
The temperature range is from -40°C to +85°C. - Does the ADM3222ARUZ have ESD protection?
Yes, it has ESD protection up to ±8 kV (Contact), ±15 kV (Air Gap), and ±15 kV (HBM). - How much current does the VCC power supply typically consume at no load?
The VCC power supply current is typically 1.3mA at no load. - What is the transition region slew rate of the ADM3222ARUZ?
The transition region slew rate is 10V/μs typical. - What are the typical propagation delays for the transmitter and receiver?
The transmitter propagation delay is 0.3μs typical at RL = 3Kohm, CL = 1000pF, and the receiver propagation delay is 0.4μs (TPHL), 0.4μs (TPLH) typical. - What are some common applications of the ADM3222ARUZ?
Common applications include general-purpose RS-232 data links, portable instruments, printers, palmtop computers, and PDAs.
