Overview
The ADM3070EARZ-REEL7 is a 3.3V low-power data transceiver designed by Analog Devices Inc. for full- and half-duplex communication on multipoint bus transmission lines. It complies with TIA/EIA standards for RS-485 and RS-422, making it suitable for balanced data transmission. This transceiver features a hot-swap input structure, true fail-safe receiver inputs, and high-Z outputs when disabled or powered off, ensuring reliable and error-free data transmission.
Key Specifications
| Parameter | Value | Unit | Comments |
|---|---|---|---|
| Voltage - Supply | 3 V ~ 3.6 V | V | |
| Operating Temperature | -40°C ~ 85°C | °C | |
| Protocol | RS422, RS485 | ||
| Data Rate | 250 kbps | kbps | |
| Number of Drivers/Receivers | 1/1 | ||
| Duplex | Full | ||
| Package / Case | 14-SOIC (0.154", 3.90mm Width) | ||
| ESD Protection | ±15 kV | kV | Human Body Model (HBM) |
| Receiver Hysteresis | 100 mV | mV | |
| Common-mode Input Range | -7 V to +12 V | V | |
| Thermal Shutdown and Short-circuit Protection | Yes |
Key Features
- Compliance with TIA/EIA standards for RS-485 and RS-422.
- ±15 kV ESD protection on RS-485 input/output pins.
- True fail-safe receiver inputs to ensure a logic high output when inputs are open or shorted.
- Hot-swap input structure on DE and active-low RE pins.
- Outputs high-Z when disabled or powered off.
- Common-mode input range from -7 V to +12 V.
- Thermal shutdown and short-circuit protection.
- Reduced slew rate drivers to minimize EMI and reduce reflections caused by improperly terminated cables.
- Low power shutdown current.
- Up to 256 nodes on the bus.
Applications
- Power/energy metering.
- Industrial control.
- Lighting systems.
- Telecommunications.
- Security systems.
- Instrumentation.
Q & A
- What is the operating voltage range of the ADM3070EARZ-REEL7?
The operating voltage range is 3 V to 3.6 V.
- What are the supported communication protocols?
The device supports RS422 and RS485 protocols.
- What is the maximum data rate of the ADM3070EARZ-REEL7?
The maximum data rate is 250 kbps.
- What is the ESD protection level of the ADM3070EARZ-REEL7?
The device has ±15 kV ESD protection on RS-485 input/output pins.
- Does the ADM3070EARZ-REEL7 support hot-swap capability?
Yes, it supports hot-swap input structure on DE and active-low RE pins.
- What is the common-mode input range of the receiver?
The common-mode input range is from -7 V to +12 V.
- Does the ADM3070EARZ-REEL7 have thermal shutdown and short-circuit protection?
Yes, it includes thermal shutdown and short-circuit protection.
- How many nodes can be connected on the bus?
Up to 256 nodes can be connected on the bus.
- What is the package type of the ADM3070EARZ-REEL7?
The package type is 14-SOIC (0.154", 3.90mm Width).
- Is the ADM3070EARZ-REEL7 RoHS compliant?
Yes, the device is lead-free and RoHS compliant.
