ADM222ARZ - 2/2 RS-232 Transceiver 200kbps | Analog Devices
MPN: ADM222ARZ β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $3.42 | $3.42 |
| 10 | $3.08 | $30.80 |
| 100 | $2.74 | $274.00 |
| 500 | $2.47 | $1,235.00 |
| 1,000 | $2.19 | $2,190.00 |
Drop-in alternatives for ADM222ARZ β same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
ADM222ARZ-REEL
β Drop-Inπ Reference alternative (not in catalog)
MAX222
β Drop-Inπ Reference alternative (not in catalog)
LT1180A
β Drop-Inπ Reference alternative (not in catalog)
ADM222ARZ Maximum Ratings & Electrical Characteristics
| Type | Transceiver |
| Protocol | RS232 |
| Number of Drivers | 2 |
| Number of Receivers | 2 |
| Duplex | Full |
| Data Rate | 200 kbps |
| Supply Voltage | 5 V |
| Charge Pump Capacitors | 0.1 Β΅F |
| Shutdown Supply Current | 0.1 Β΅A |
| Operating Temperature Range | -40Β°C to +85Β°C |
| Package | 18-SOIC (SOIC-W) |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
| Receiver Input Tolerance | Β±30 V |
| ESD Protection | [DATA_NEEDED: ESD rating] |
ADM222ARZ Pin Configuration
| Pin 1 | VCC β 5V supply |
| Pin 2 | GND β Ground |
| Pin 3 | T1IN β Driver 1 input |
| Pin 4 | T2IN β Driver 2 input |
| Pin 5 | R1OUT β Receiver 1 output |
| Pin 6 | R2OUT β Receiver 2 output |
| Pin 7 | SHDN β Shutdown (active low) |
| Pin 8 | C1+ β Charge pump capacitor positive |
| Pin 9 | C1- β Charge pump capacitor negative |
| Pin 10 | C2+ β Charge pump capacitor positive |
| Pin 11 | C2- β Charge pump capacitor negative |
| Pin 12 | V+ β Positive charge pump output |
| Pin 13 | V- β Negative charge pump output |
| Pin 14 | T1OUT β Driver 1 output |
| Pin 15 | T2OUT β Driver 2 output |
| Pin 16 | R1IN β Receiver 1 input |
| Pin 17 | R2IN β Receiver 2 input |
| Pin 18 | GND β Ground |
Safe Operating Area (SOA) & Thermal Characteristics
No official SOA curve available for this digital IC. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.
Typical Applications
ADM222ARZ is suitable for 6 applications: Industrial Automation, Point-of-Sale Terminals, Medical Devices, Networking Equipment, Test and Measurement, Consumer Electronics.
Industrial Automation
The ADM222ARZ provides reliable RS-232 communication in industrial control systems, PLCs, and factory automation equipment. Its 200 kbps data rate and robust Β±30 V receiver input tolerance ensure dependable data transfer in noisy environments. The shutdown pin allows power saving during idle periods, reducing overall system power consumption. The wide operating temperature range of -40Β°C to +85Β°C makes it suitable for harsh industrial settings.
Recommended
Point-of-Sale Terminals
In POS terminals, the ADM222ARZ interfaces the main processor with peripherals like barcode scanners, receipt printers, and cash drawers. Its 5 V operation and 0.1 Β΅F charge pump capacitors minimize board space, while the shutdown mode reduces standby power to 0.1 Β΅A, extending battery life in portable POS devices. The full-duplex 2/2 configuration supports simultaneous transmit and receive, essential for interactive transactions.
Recommended
Medical Devices
The ADM222ARZ is used in medical monitoring equipment, diagnostic devices, and patient data systems that require reliable serial communication. Its low shutdown current is critical for battery-powered portable medical devices, and the wide temperature range ensures operation in clinical environments. The device's compliance with EIA-232E standards guarantees interoperability with existing medical equipment interfaces.
Recommended
Networking Equipment
In networking gear such as routers, switches, and console ports, the ADM222ARZ provides a reliable RS-232 interface for local management and configuration. Its 200 kbps data rate is sufficient for console access, and the shutdown pin allows power saving when the console port is not in use. The small 0.1 Β΅F capacitors reduce component count, simplifying PCB layout in dense networking boards.
Recommended
Test and Measurement
The ADM222ARZ is employed in oscilloscopes, multimeters, and data acquisition systems for PC connectivity and remote control. Its high-speed 200 kbps data rate enables fast data transfer, while the shutdown mode reduces power consumption during idle periods. The robust receiver inputs tolerate voltage spikes, ensuring reliable operation in test environments with electrical noise.
Recommended
Consumer Electronics
In consumer devices like set-top boxes, gaming consoles, and home automation hubs, the ADM222ARZ provides legacy RS-232 connectivity for debugging and peripheral interfacing. Its low shutdown current is ideal for energy-efficient designs, and the small package footprint suits compact consumer electronics. The device's 5 V operation simplifies power supply design in systems with existing 5 V rails.
Recommended
Recommended Products Summary
Engineering reference data for ADM222ARZ β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | ADM222ARZ-REEL | ADM232AARNZ | ADM202JRNZ | MAX222 | LT1180A |
|---|---|---|---|---|---|---|
| Package | 18-SOIC (SOIC-W) | 18-SOIC (SOIC-W) - same | 16-SOIC | 16-SOIC | 18-SOIC | 18-SOIC |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Maxim Integrated | Analog Devices |
| Data Rate | 200 kbps | 200 kbps | 200 kbps | 200 kbps | 200 kbps | 200 kbps |
| Supply Voltage | 5 V | 5 V | 5 V | 5 V | 5 V | 5 V |
| Shutdown Pin | Yes | Yes | No | No | Yes | Yes |
| Charge Pump Capacitors | 0.1 Β΅F | 0.1 Β΅F | 0.1 Β΅F | 0.1 Β΅F | 0.1 Β΅F | 0.1 Β΅F |
| Operating Temperature | -40Β°C to +85Β°C | -40Β°C to +85Β°C | -40Β°C to +85Β°C | -40Β°C to +85Β°C | -40Β°C to +85Β°C | -40Β°C to +85Β°C |
| Pin Compatibility | Reference | Yes | No | No | Yes | Yes |
Key Differentiators
- Shutdown pin for low-power operation (vs ADM232AARNZ)
- 18-pin SOIC-W package with shutdown (vs ADM202JRNZ)
- Cross-brand pin-compatible alternative (vs MAX222)
Design Notes
Place the charge pump capacitors (C1, C2) as close as possible to the V+ and V- pins to minimize parasitic inductance and ensure stable voltage generation. Use 0.1 Β΅F ceramic capacitors with low ESR for optimal performance. Keep the traces short and wide to reduce noise.
The shutdown pin (SHDN) reduces supply current to 0.1 Β΅A when pulled low. For power-sensitive designs, connect SHDN to a microcontroller GPIO to disable the transceiver during idle periods. Ensure the SHDN pin is not left floating; use a pull-up resistor to VCC if not driven.
Do not exceed the absolute maximum ratings for the receiver inputs, which tolerate Β±30 V. For applications with potential voltage spikes, consider adding external protection diodes. Also, ensure the supply voltage is within 5 V Β±10% to avoid malfunction.
Compliance Information
RoHS compliant per distributor listings. No AEC-Q100 qualification indicated.
