Overview
The ADM3222ARWZ-REEL7 is a low-power, 3.3V RS-232 line driver/receiver produced by Analog Devices Inc. This high-speed, 2-channel RS-232/V.28 interface device operates from a single 3.3V power supply, making it ideal for battery-powered portable instruments. It conforms to the EIA-232E and CCITT V.28 specifications and supports data rates up to 460Kbps. The device features additional enable and shutdown circuitry, allowing for power-down modes that reduce quiescent current to less than 0.5μA. This transceiver is packaged in an 18-lead SOIC-W package and operates over a temperature range of -40°C to +85°C.
Key Specifications
| Parameter | Value |
|---|---|
| Operating Voltage Range | 3V to 5.5V |
| Power Supply Current (VCC) | 1.3mA typical at no load |
| Data Rate | Up to 460Kbps |
| 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 |
| Transmitter Skew | 30ns |
| Receiver Skew | 300ns |
| Package Type | 18-lead SOIC-W |
| Temperature Range | -40°C to +85°C |
| ESD Protection | ±8 kV (Contact), ±15 kV (Air Gap), ±15 kV (HBM) |
Key Features
- Meets EIA-232E and CCITT V.28 specifications
- Low power consumption with a shutdown facility for battery-powered devices
- High-speed data transmission up to 460Kbps
- Full duplex operation with 2 drivers and 2 receivers
- Active-low EN input for three-stating receiver outputs and active-low SD input for power-down mode
- Receiver hysteresis of 400mV for improved sensitivity and accuracy
- ESD protection of ±8 kV (Contact), ±15 kV (Air Gap), ±15 kV (HBM)
- Operating voltage range from 3V to 5.5V
Applications
- General-purpose RS-232 data links
- Portable instruments
- Printers and palmtop computers
- Communication networks: optical fiber, wireless, and satellite communication
- Automotive electronics: vehicle entertainment systems, navigation systems, and intelligent driving assistance systems
- Industrial Internet of Things (IoT): smart home, smart agriculture, smart logistics
- Consumer electronics: smartphones, tablets, wearable devices
Q & A
- What is the operating voltage range of the ADM3222ARWZ-REEL7?
The operating voltage range is from 3V to 5.5V.
- What is the maximum data rate supported by the ADM3222ARWZ-REEL7?
The maximum data rate supported is up to 460Kbps.
- What type of package does the ADM3222ARWZ-REEL7 come in?
The device is packaged in an 18-lead SOIC-W package.
- What is the temperature range for the ADM3222ARWZ-REEL7?
The temperature range is from -40°C to +85°C.
- Does the ADM3222ARWZ-REEL7 have ESD protection?
Yes, it has ESD protection of ±8 kV (Contact), ±15 kV (Air Gap), ±15 kV (HBM).
- How many drivers and receivers does the ADM3222ARWZ-REEL7 have?
The device has 2 drivers and 2 receivers.
- What is the purpose of the active-low EN and SD inputs?
The active-low EN input is used to three-state the receiver outputs, and the active-low SD input is used to power down the charge pump and transmitter outputs.
- What is the typical power supply current (VCC) at no load?
The typical power supply current (VCC) at no load is 1.3mA.
- What is the receiver hysteresis level?
The receiver hysteresis level is 400mV.
- Is the ADM3222ARWZ-REEL7 RoHS compliant?
Yes, the ADM3222ARWZ-REEL7 is Lead Free / RoHS Compliant.
