Overview
The ADM3488EARZ-REEL7 is a 3.3 V, low-power, full-duplex RS-485/RS-422 transceiver produced by Analog Devices Inc. This device is designed for balanced data transmission on multipoint bus transmission lines and is suitable for applications requiring reliable and efficient data communication.
The ADM3488EARZ-REEL7 features dedicated differential line driver outputs and receiver inputs, making it ideal for full-duplex communication. It complies with TIA/EIA standards RS-485 and RS-422, ensuring compatibility with a wide range of systems.
Key Specifications
| Parameter | Value | Unit | Comments |
|---|---|---|---|
| Guaranteed Data Rate | 250 kbps | ||
| Supply Voltage | 3V ~ 3.6V | V | |
| Operating Temperature | -40°C ~ 85°C | °C | |
| Package Type | 8-SOIC (0.154", 3.90mm Width) | ||
| ESD Protection | ±15 kV | kV | On bus pins |
| Receiver Input Impedance | 12 kΩ | kΩ | |
| Differential Output Delay | 600 ~ 1400 ns | ns | RL = 60 Ω |
| Differential Output Transition Time | 400 ~ 1200 ns | ns | RL = 60 Ω |
| Propagation Delay (Low to High) | 700 ~ 1500 ns | ns | RL = 27 Ω |
| Propagation Delay (High to Low) | 700 ~ 1500 ns | ns | RL = 27 Ω |
| Propagation Delay Skew | ±50 ns | ns | RL = 27 Ω |
Key Features
- Slew Rate Limited Drivers: Minimize EMI and reduce reflections caused by improperly terminated cables, ensuring error-free data transmission.
- Full-Duplex Operation: Dedicated differential line driver outputs and receiver inputs for simultaneous transmission and reception.
- High ESD Protection: ±15 kV ESD protection on bus pins to ensure robustness against electrical surges.
- Fail-Safe Receiver: Ensures a logic high output when the inputs are floating, preventing data errors.
- Thermal Shutdown and Short-Circuit Protection: Prevents excessive power dissipation caused by bus contention or output shorting.
- Low Power Shutdown Current: Low power consumption when the device is disabled or powered off.
- Industry-Standard Pinout: Compatible with the 75176 pinout, making it easy to integrate into existing systems.
Applications
- Power/Energy Metering: Suitable for use in power and energy metering systems due to its reliability and accuracy.
- Telecommunications: Used in telecommunications systems for reliable data transmission.
- EMI-Sensitive Systems: Ideal for systems sensitive to electromagnetic interference due to its slew rate limited drivers.
- Industrial Control: Applied in industrial control systems for robust and reliable communication.
- Local Area Networks: Used in local area networks for efficient data communication.
Q & A
- What is the guaranteed data rate of the ADM3488EARZ-REEL7?
The guaranteed data rate is up to 250 kbps.
- What is the supply voltage range for the ADM3488EARZ-REEL7?
The supply voltage range is 3V to 3.6V.
- What type of package does the ADM3488EARZ-REEL7 come in?
The device comes in an 8-SOIC (0.154", 3.90mm Width) package.
- What is the ESD protection level on the bus pins of the ADM3488EARZ-REEL7?
The ESD protection level is ±15 kV on the bus pins.
- Does the ADM3488EARZ-REEL7 support full-duplex operation?
Yes, it supports full-duplex operation with dedicated differential line driver outputs and receiver inputs).
- What is the receiver input impedance of the ADM3488EARZ-REEL7?
The receiver input impedance is 12 kΩ, allowing up to 32 transceivers on the bus).
- What protection mechanisms does the ADM3488EARZ-REEL7 have against excessive power dissipation?
The device has thermal shutdown and short-circuit protection to prevent excessive power dissipation).
- What is the typical application of the ADM3488EARZ-REEL7 in network topology?
The device can be used in daisy-chain network topology or in point-to-point applications).
- How does the slew rate limited driver feature benefit the ADM3488EARZ-REEL7?
The slew rate limited driver minimizes EMI and reduces reflections caused by improperly terminated cables, ensuring error-free data transmission).
- What is the fail-safe feature of the receiver in the ADM3488EARZ-REEL7?
The receiver has a fail-safe feature that ensures a logic high output when the inputs are floating).
