Overview
The ADM4853ARZ-REEL7 is a high-speed, half-duplex differential line transceiver produced by Analog Devices Inc. This component is designed for balanced data transmission and complies with EIA Standards RS-485 and RS-422. It is suitable for various applications requiring reliable and efficient data communication over multipoint bus transmission lines.
Key Specifications
| Parameter | Value | Unit | Test Conditions/Comments |
|---|---|---|---|
| Data Rate | 10 Mbps | ||
| Propagation Delay (Driver) | 0 - 30 ns | RLDIFF = 54 Ω, CL1 = CL2 = 100 pF | |
| Skew (Driver) | 10 ns | RLDIFF = 54 Ω, CL1 = CL2 = 100 pF | |
| Rise/Fall Times (Driver) | 30 ns | RLDIFF = 54 Ω, CL1 = CL2 = 100 pF | |
| Enable Time (Driver) | 35 ns | RL = 500 Ω, CL = 100 pF | |
| Disable Time (Driver) | 35 ns | RL = 500 Ω, CL = 100 pF | |
| Propagation Delay (Receiver) | 55 - 190 ns | CL = 15 pF | |
| Differential Skew (Receiver) | 30 ns | CL = 15 pF | |
| Enable Time (Receiver) | 5 - 50 ns | RL = 1 kΩ, CL = 15 pF | |
| Disable Time (Receiver) | 20 - 50 ns | RL = 1 kΩ, CL = 15 pF | |
| Supply Current in Shutdown | 5 µA (maximum) | ||
| Temperature Range | -40°C to +85°C | ||
| Package Type | 8-Lead SOIC |
Key Features
- EIA RS-485/RS-422 compliant
- High-speed data transmission up to 10 Mbps
- Half-duplex operation with separate enable inputs for driver and receiver
- True fail-safe receiver inputs ensuring logic high output when inputs are open or shorted
- Reduced slew rates for low electromagnetic interference (EMI)
- Thermal shutdown and short-circuit protection
- Outputs high-Z when disabled or powered off
- Bus common-mode range of -7 V to +12 V
- Up to 256 transceivers on one bus due to 1/8-unit load receiver input impedance
Applications
- Low power RS-485 applications
- EMI sensitive systems
- DTE to DCE interfaces
- Industrial control systems
- Packet switching networks
- Local area networks
- Level translators
- Automotive applications
Q & A
- What is the maximum data rate of the ADM4853ARZ-REEL7?
The maximum data rate is 10 Mbps. - What are the operating temperature ranges for this component?
The component operates over a temperature range of -40°C to +85°C. - What is the package type of the ADM4853ARZ-REEL7?
The package type is 8-Lead SOIC. - Is the ADM4853ARZ-REEL7 compliant with RS-485 and RS-422 standards?
Yes, it is compliant with EIA Standards RS-485 and RS-422. - What is the maximum supply current in shutdown mode?
The maximum supply current in shutdown mode is 5 µA. - How many transceivers can be connected on one bus?
Up to 256 transceivers can be connected on one bus due to the 1/8-unit load receiver input impedance. - Does the ADM4853ARZ-REEL7 have thermal shutdown and short-circuit protection?
Yes, it has thermal shutdown and short-circuit protection. - What is the bus common-mode range of the ADM4853ARZ-REEL7?
The bus common-mode range is -7 V to +12 V. - Is the ADM4853ARZ-REEL7 suitable for automotive applications?
Yes, it is qualified for automotive applications. - What are the key features of the receiver inputs in the ADM4853ARZ-REEL7?
The receiver inputs have a true fail-safe feature, ensuring a logic high output level when the inputs are open or shorted.
