Overview
The ADM3078EYRZ 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. The device features ±15KV ESD protection on RS-485 input/output pins, true fail-safe receiver inputs, and a hot-swap input structure on DE and active-low RE pins. It ensures reliable performance in harsh environments with thermal shutdown and short-circuit protection.
Key Specifications
| Parameter | Value | Unit | Comments |
|---|---|---|---|
| Supply Voltage | 2.97 V to 3.63 V | V | |
| Data Rate | 16 Mbps | ||
| Operating Temperature | -40°C to +125°C | °C | |
| Package Type | 8-lead Standard Small Outline Package (SOIC-N) | ||
| ESD Protection | ±15 kV | On RS-485 input/output pins | |
| Common-mode Input Range | -7 V to +12 V | V | |
| Number of Nodes on Bus | Up to 256 | ||
| Receiver Input Impedance | ⅛ unit load | ||
| Driver/Receiver Enable | Yes | ||
| Low Power Shutdown | Yes |
Key Features
- TIA/EIA RS-485/RS-422 compliant
- ±15KV ESD protection on RS-485 input/output pins
- True fail-safe receiver inputs
- Hot-swap input structure on DE and active-low RE pins
- Outputs high-Z when disabled or powered off
- Common-mode input range from -7V to +12V
- Thermal shutdown and short-circuit protection
- Half duplex communication, 16Mbps data rate
- Driver/receiver enable, low power shutdown
- Up to 256 nodes on the bus
- 8-lead standard small outline package (SOIC-N)
Applications
- Power/energy metering
- Industrial control
- Lighting systems
- Telecommunications
- Security systems
- Instrumentation
Q & A
- Q: What is the operating voltage range of the ADM3078EYRZ?
A: The operating voltage range is 2.97 V to 3.63 V.
- Q: What is the maximum data rate supported by the ADM3078EYRZ?
A: The maximum data rate is 16 Mbps.
- Q: What is the operating temperature range of the ADM3078EYRZ?
A: The operating temperature range is -40°C to +125°C.
- Q: What type of package does the ADM3078EYRZ come in?
A: The ADM3078EYRZ comes in an 8-lead standard small outline package (SOIC-N).
- Q: What level of ESD protection does the ADM3078EYRZ offer?
A: The ADM3078EYRZ offers ±15 kV ESD protection on RS-485 input/output pins.
- Q: What is the common-mode input range of the ADM3078EYRZ?
A: The common-mode input range is from -7 V to +12 V.
- Q: How many nodes can be connected on the bus using the ADM3078EYRZ?
A: Up to 256 nodes can be connected on the bus.
- Q: Does the ADM3078EYRZ support low power shutdown?
A: Yes, the ADM3078EYRZ supports low power shutdown.
- Q: What are the key applications of the ADM3078EYRZ?
A: Key applications include power/energy metering, industrial control, lighting systems, telecommunications, security systems, and instrumentation.
- Q: What is the significance of the true fail-safe receiver inputs in the ADM3078EYRZ?
A: The true fail-safe receiver inputs eliminate the need for external bias resistors and ensure a logic high output level when the inputs are open or shorted, guaranteeing a known state before and after communication.
