Overview
The ADM3483EARZ-REEL7 is a 3.3 V, low-power data transceiver produced by Analog Devices Inc., designed for full- and half-duplex communication on multipoint bus transmission lines. This device is part of the ADM3483E series and is suitable for RS-485 and RS-422 communications. It features a half-duplex configuration and is optimized for balanced data transmission, making it ideal for various industrial and communication applications.
Key Specifications
| Parameter | Value | Unit | Comments |
|---|---|---|---|
| Data Rate | 250 kbps | ||
| Differential Output Delay (tDD) | 600 - 1400 | ns | RL = 60 Ω |
| Differential Output Transition Time (tTD) | 400 - 1200 | ns | RL = 60 Ω |
| Propagation Delay (tPLH, tPHL) | 700 - 1500 | ns | RL = 27 Ω |
| Propagation Delay Skew (|tPLH - tPHL|) | ±50 ns | RL = 27 Ω | |
| Supply Voltage | 3.3 V | ||
| Operating Temperature Range | -40°C to +85°C | ||
| Package Type | 8-Lead SOIC_N | ||
| Receiver Hysteresis | 50 mV | ||
| ESD Protection | ±15 kV |
Key Features
- Low Power Consumption: The device features a low power shutdown mode, drawing only 2 nA of supply current when both the driver and receiver are disabled.
- High ESD Protection: Offers ±15 kV ESD protection, enhancing reliability in harsh environments.
- Fail-Safe Receiver: The receiver contains a fail-safe feature that results in a logic high output state if the inputs are unconnected (floating).
- Thermal Shutdown and Short-Circuit Protection: Includes thermal shutdown and short-circuit protection to prevent excessive power dissipation and damage from faults or bus contention.
- Driver Enable and Receiver Enable Pins: Features driver enable (DE) and receiver enable (RE) pins, allowing for high impedance outputs when disabled.
- Common-Mode Input Range: Supports a common-mode input range of −7 V to +12 V.
- Slew Rate Limited Drivers: Minimizes EMI and reduces reflections caused by improperly terminated cables, ensuring error-free data transmission.
Applications
- Power/Energy Metering: Suitable for use in power and energy metering systems due to its reliability and low power consumption.
- Telecommunications: Used in telecommunications for balanced data transmission over multipoint bus lines.
- EMI-Sensitive Systems: Ideal for EMI-sensitive systems due to its slew rate limited drivers that minimize EMI.
- Industrial Control: Applied in industrial control systems for reliable and efficient data communication.
- Local Area Networks: Used in local area networks for half-duplex communication.
Q & A
- What is the data rate of the ADM3483EARZ-REEL7?
The data rate of the ADM3483EARZ-REEL7 is up to 250 kbps.
- What is the operating supply voltage of the ADM3483EARZ-REEL7?
The operating supply voltage is 3.3 V.
- What is the package type of the ADM3483EARZ-REEL7?
The package type is 8-Lead SOIC_N.
- Does the ADM3483EARZ-REEL7 have ESD protection?
Yes, it offers ±15 kV ESD protection.
- What is the common-mode input range of the ADM3483EARZ-REEL7?
The common-mode input range is −7 V to +12 V.
- How does the thermal shutdown feature work in the ADM3483EARZ-REEL7?
The thermal shutdown circuit forces the driver outputs into a high impedance state if the die temperature rises excessively due to bus contention or output shorting.
- What is the receiver hysteresis of the ADM3483EARZ-REEL7?
The receiver hysteresis is 50 mV.
- Can the ADM3483EARZ-REEL7 operate in half-duplex mode?
Yes, the ADM3483EARZ-REEL7 is a half-duplex transceiver.
- How many nodes can be connected on the bus using the ADM3483EARZ-REEL7?
Up to 32 transceivers can be connected on the bus.
- What is the low power shutdown current of the ADM3483EARZ-REEL7?
In shutdown mode, the device typically draws only 2 nA of supply current.
