ADM3491ARZ

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ADM3491ARZ

+Nomenclature

IC TRANSCEIVER FULL 1/1 14SOIC

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Spécifications

Attribut Valeur
Package Bulk,Tube
ProductStatus Active
Type Transceiver
Protocol RS422, RS485
NumberofDrivers/Receivers 1/1
Duplex Full
ReceiverHysteresis 50 mV
DataRate 10Mbps
Voltage-Supply 3V ~ 3.6V
OperatingTemperature -40°C ~ 85°C
MountingType Surface Mount
Package/Case 14-SOIC (0.154, 3.90mm Width)

Présentation

Description

The ADM3491ARZ is a 3.3V, RS-485/RS-422 transceiver from Analog Devices, designed for half-duplex communication. It features high-speed data transmission (up to 16Mbps) and low power consumption, making it suitable for industrial, automotive, and networking applications.
Key features include:
- ±15kV ESD protection (enhanced robustness).
- 1/8-unit load (allows up to 256 nodes on a bus).
- Fail-safe receiver inputs (ensures logic-high output with open or shorted bus).
- Thermal shutdown for overcurrent protection.
The device operates over a -40°C to +85°C range and comes in an 8-pin SOIC package. It complies with TIA/EIA-485-A standards, ensuring reliable differential data transmission over long distances.
Ideal for motor control, process automation, and isolated communication systems, the ADM3491ARZ balances performance, durability, and cost-effectiveness.

Equivalent

The ADM3491ARZ is a 3.3V RS-485/RS-422 transceiver. Equivalent products include:
- MAX3485ESA+ (Maxim Integrated)
- SN65HVD72DR (Texas Instruments)
- LTC2850CS8#PBF (Analog Devices)
- ISL83485IBZ (Renesas)
These alternatives offer similar functionality (half-duplex, 10 Mbps data rate) and are pin-compatible or functionally equivalent. Verify voltage levels and features for exact compatibility.

Pinout

The ADM3491ARZ is a 3.3V RS-485/RS-422 transceiver with the following key details:
- Pin Count: 8 pins (SOIC package)
- Functions:
- Half-duplex communication
- Supports data rates up to 12 Mbps
- Integrated slew-rate limiting for reduced EMI
- Driver (Tx) and receiver (Rx) enable controls
- ±15kV ESD protection (human-body model)
- Operates with a single 3.3V supply
Pins include RO (Receiver Output), RE (Receiver Enable), DE (Driver Enable), DI (Driver Input), A/B (Bus Lines), Y/Z (Complementary Bus Lines), and GND/VCC.
Used in industrial, telecom, and networking applications for robust differential data transmission.

Manufacturer

The ADM3491ARZ is manufactured by Analog Devices, Inc. (ADI), a leading global semiconductor company specializing in data conversion, signal processing, and power management technologies. Founded in 1965 and headquartered in Norwood, Massachusetts, Analog Devices is known for its high-performance analog, mixed-signal, and digital signal processing (DSP) integrated circuits (ICs). The ADM3491ARZ is a 3.3V RS-485/RS-422 transceiver, reflecting ADI's expertise in industrial and communication applications. The company serves industries like automotive, healthcare, and industrial automation.

Application

The ADM3491ARZ is a 3.3V RS-485/RS-422 transceiver commonly used in:
1. Industrial Automation – For robust communication in PLCs, motor control, and sensors.
2. Building Automation – HVAC, lighting, and security systems requiring noise immunity.
3. Telecom Infrastructure – Base stations and network equipment.
4. Medical Devices – Reliable data transmission in diagnostic tools.
5. Renewable Energy – Solar inverters and wind turbine monitoring.
Its low-power, high-speed (up to 12Mbps), and ESD protection make it ideal for noisy, long-distance applications.

Package

The ADM3491ARZ comes in a 16-lead SOIC (Small Outline Integrated Circuit) package. This surface-mount package is compact and widely used for industrial and communication applications. The "RZ" suffix typically indicates RoHS compliance.

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