Overview
The ADM3491EARZ-REEL7 from Analog Devices Inc. is a low-power, full-duplex RS422/RS485 transceiver designed for balanced data transmission on multipoint bus transmission lines. This device is suitable for applications requiring high-speed data communication and is optimized for use in EMI-sensitive systems. The transceiver features separate enable inputs for the driver and receiver, allowing for flexible control over the communication lines.
Key Specifications
| Parameter | Value | Unit | Test Conditions/Comments |
|---|---|---|---|
| Data Rate | 12 Mbps | ||
| Supply Voltage Range | 3 V to 3.6 V | ||
| Operating Temperature Range | -40°C to +85°C | ||
| Package Style | 14-lead standard small outline package (SOIC-N) | ||
| Number of Drivers/Receivers | 1/1 | ||
| Duplex Mode | Full | ||
| Receiver Hysteresis | 50 mV | ||
| Receiver Input Impedance | 12 kΩ | ||
| ESD Protection | ±15 kV (HBM) | ||
| Differential Output Delay (tDD) | 1 to 35 ns | ns | RL = 60 Ω |
| Differential Output Transition Time (tTD) | 3 to 25 ns | ns | RL = 60 Ω |
| Propagation Delay (tPLH, tPHL) | 7 to 35 ns | ns | RL = 27 Ω |
Key Features
- Low power shutdown current
- Data rate of up to 12 Mbps
- Supports up to 32 nodes on the bus with receiver open-circuit, fail-safe design
- Outputs are high-Z when disabled or powered off to avoid bus overloading
- Thermal shutdown and short-circuit protection
- Industry-standard 75176 pinout
- Separate enable inputs for the driver and receiver
- ESD protection of ±15 kV (HBM)
Applications
- Power and energy metering
- Telecommunications
- EMI-sensitive systems
- Industrial control systems
- Local area networks (LANs)
Q & A
- What is the data rate of the ADM3491EARZ-REEL7 transceiver?
The data rate of the ADM3491EARZ-REEL7 is up to 12 Mbps.
- What is the operating temperature range of the ADM3491EARZ-REEL7?
The operating temperature range is -40°C to +85°C.
- What type of package does the ADM3491EARZ-REEL7 come in?
The ADM3491EARZ-REEL7 comes in a 14-lead standard small outline package (SOIC-N).
- How many drivers and receivers does the ADM3491EARZ-REEL7 have?
The ADM3491EARZ-REEL7 has 1 driver and 1 receiver.
- What is the receiver hysteresis of the ADM3491EARZ-REEL7?
The receiver hysteresis is 50 mV.
- Does the ADM3491EARZ-REEL7 support full-duplex communication?
- What is the ESD protection level of the ADM3491EARZ-REEL7?
- How many nodes can be supported on the bus with the ADM3491EARZ-REEL7?
- What happens to the outputs when the driver or receiver is disabled or powered off?
- Does the ADM3491EARZ-REEL7 have thermal shutdown and short-circuit protection?
