Overview
The ADM4852ACPZ-REEL7 is a high-speed, half-duplex RS-485/RS-422 transceiver produced by Analog Devices Inc. This integrated circuit is designed for robust and reliable serial communication in various industrial and commercial environments. The device is part of the ADM4850 to ADM4857 series, known for its high data rates and advanced protection features.
Key Specifications
| Parameter | Value | Unit | Comments |
|---|---|---|---|
| Data Rate | 2.5 Mbps | ||
| Duplex Mode | Half-Duplex | ||
| Supply Voltage | 4.75 V to 5.25 V | V | |
| Maximum Operating Temperature | 85 °C | °C | |
| Propagation Delay | 50 ns to 180 ns | ns | RLDIFF = 54 Ω, CL1 = CL2 = 100 pF |
| Rise/Fall Times | 140 ns | ns | RLDIFF = 54 Ω, CL1 = CL2 = 100 pF |
| Receiver Hysteresis | 20 mV | mV | |
| Supply Current in Shutdown Mode | 5 µA (maximum) | µA | |
| Package Type | 8-lead LFCSP |
Key Features
- High-Speed Data Rates: Supports data rates up to 2.5 Mbps, making it suitable for high-speed serial communication applications.
- RS-485/RS-422 Compliance: Fully compliant with EIA RS-485 and RS-422 standards, ensuring compatibility with a wide range of systems.
- True Fail-Safe Receiver Inputs: Ensures a logic high output level when the inputs are open or shorted, providing reliable operation in various conditions.
- Reduced EMI: Slew rate limited driver outputs to minimize electromagnetic interference and data errors caused by reflections from improperly terminated buses.
- Thermal Shutdown and Short-Circuit Protection: Protects against excessive power dissipation due to bus contention or output shorting.
- Low Power Consumption: Maximum supply current of 5 µA in shutdown mode, contributing to energy efficiency.
- High Bus Capacity: Allows up to 256 transceivers on one bus due to its 1/8-unit load receiver input impedance.
Applications
- Industrial Automation: Suitable for use in industrial control systems, sensors, and actuators due to its robustness and high reliability.
- Commercial Systems: Used in various commercial applications such as building automation, security systems, and data acquisition systems.
- Embedded Systems: Ideal for embedded systems requiring high-speed serial communication with low power consumption.
- Networking and Communication: Employed in networked devices and communication equipment where reliable and fast data transfer is crucial.
Q & A
- What is the maximum data rate of the ADM4852ACPZ-REEL7?
The maximum data rate of the ADM4852ACPZ-REEL7 is 2.5 Mbps.
- What is the duplex mode of the ADM4852ACPZ-REEL7?
The ADM4852ACPZ-REEL7 operates in half-duplex mode.
- What is the supply voltage range for the ADM4852ACPZ-REEL7?
The supply voltage range for the ADM4852ACPZ-REEL7 is 4.75 V to 5.25 V.
- What is the maximum operating temperature of the ADM4852ACPZ-REEL7?
The maximum operating temperature of the ADM4852ACPZ-REEL7 is 85 °C.
- Does the ADM4852ACPZ-REEL7 have built-in protection features?
Yes, the ADM4852ACPZ-REEL7 includes thermal shutdown and short-circuit protection to prevent excessive power dissipation.
- How many transceivers can be connected on one bus with the ADM4852ACPZ-REEL7?
Up to 256 transceivers can be connected on one bus due to its 1/8-unit load receiver input impedance.
- What is the receiver hysteresis of the ADM4852ACPZ-REEL7?
The receiver hysteresis of the ADM4852ACPZ-REEL7 is 20 mV.
- What is the package type of the ADM4852ACPZ-REEL7?
The ADM4852ACPZ-REEL7 is available in an 8-lead LFCSP package.
- Does the ADM4852ACPZ-REEL7 have EMI reduction features?
Yes, the ADM4852ACPZ-REEL7 has slew rate limited driver outputs to reduce electromagnetic interference.
- What is the supply current in shutdown mode for the ADM4852ACPZ-REEL7?
The supply current in shutdown mode for the ADM4852ACPZ-REEL7 is 5 µA (maximum).
