Analog Devices Inc. ADM3491ARZ
| Parameters | |
|---|---|
| Standard Package | 56 |
| ECCN | EAR99 |
| HTSUS | 8542.39.0001 |
| Series | - |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
| RoHS Status | ROHS3 Compliant |
| Package / Case | 14-SOIC (0.154", 3.90mm Width) |
| Mfr | Analog Devices Inc. |
| Mounting Type | Surface Mount |
| Operating Temperature | -40°C ~ 85°C |
| Type | Transceiver |
| Data Rate | 10Mbps |
| Receiver Hysteresis | 50 mV |
| Supplier Device Package | 14-SOIC |
| Voltage - Supply | 3V ~ 3.6V |
| Protocol | RS422, RS485 |
| Number of Drivers/Receivers | 1/1 |
| Duplex | Full |
| Package | Tube |
| Product Status | Active |
| Base Product Number | ADM3491 |
| REACH Status | REACH Unaffected |
ADM3491ARZ | Analog Devices RS-485/RS-422 transceiver
The ADM3491ARZ is a full-duplex RS-485/RS-422 transceiver from Analog Devices Inc., designed for high-speed data communication in industrial and commercial applications. It operates on a 3.3V supply and supports data rates up to 10 Mbps, making it suitable for demanding communication tasks. The device features a 12 kΩ receiver input impedance, allowing up to 32 transceivers to be connected on the bus. It is available in a 14-lead SOIC package and is fully specified over the industrial temperature range of -40°C to +85°C.
ADM3491ARZ Features
This transceiver ic offers several key features. It includes a slew rate limited driver that minimizes EMI and reduces reflections caused by improperly terminated cables. The device also has a low power shutdown mode, initiated by bringing RE high and DE low, which typically draws only 2 nA of supply current. It provides robust protection against overvoltage, ESD, and thermal overload, ensuring high reliability in harsh environments. Additionally, the ADM3491ARZ features a fail-safe receiver that outputs a logic high state when inputs are unconnected.
ADM3491ARZ Applications
The ADM3491ARZ is widely used in various fields. It is ideal for industrial automation, where it enables reliable communication between PLCs, sensors, and actuators. It is also used in data acquisition systems for industrial and environmental monitoring. Other applications include telecommunications, HVAC control, and medical equipment, where its high-speed and low-power characteristics are particularly beneficial.
Selection Advantages
Choosing the ADM3491ARZ offers several advantages. Its high data rate capability ensures efficient data transmission in demanding applications. The low power consumption helps in extending the battery life of portable devices. The device's robust protection features make it highly reliable, reducing the risk of damage from electrical faults. Its compatibility with both 3.3V and 5V logic systems and its wide operating temperature range make it versatile for a variety of applications.
