ADM1485JRZ

Product Overview

• Category: Integrated Circuit
• Use: Signal Isolation and Level Shifting
• Characteristics: High-speed, low-power, robust isolation
• Package: SOIC (Small Outline Integrated Circuit)
• Essence: Signal integrity and noise immunity
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Isolation Voltage: 5000 Vrms
• Data Rate: Up to 25 Mbps
• Supply Voltage: 3.3 V
• Operating Temperature Range: -40°C to +85°C
• Propagation Delay: 30 ns (max)
• Quiescent Current: 1.6 mA (typ)

Detailed Pin Configuration

The ADM1485JRZ has a total of 8 pins:

1. RO - Receiver Output
2. RE - Receiver Enable
3. DE - Driver Enable
4. DI - Driver Input
5. GND - Ground
6. VCC - Supply Voltage
7. A - Bus Terminal A
8. B - Bus Terminal B

Functional Features

• Provides galvanic isolation between two bus systems
• Translates logic levels between different voltage domains
• Supports half-duplex communication
• Robust ESD protection on bus terminals
• Low power consumption for energy-efficient operation

Advantages and Disadvantages

Advantages

• High-speed data transmission up to 25 Mbps
• Wide operating temperature range for versatile applications
• Robust isolation voltage of 5000 Vrms ensures safety
• Small package size allows for space-saving designs
• Low quiescent current for power-sensitive applications

Disadvantages

• Limited to half-duplex communication only
• Requires external components for complete functionality
• Sensitive to voltage spikes and transients

Working Principles

The ADM1485JRZ is an integrated circuit designed for signal isolation and level shifting. It utilizes galvanic isolation techniques to provide protection against ground loops and noise interference. The device translates logic levels between two bus systems operating at different voltage domains, allowing seamless communication between them. The ADM1485JRZ also incorporates robust ESD protection on its bus terminals, ensuring reliable operation in harsh environments.

Detailed Application Field Plans

The ADM1485JRZ finds applications in various fields, including:

1. Industrial Automation: Isolating and interfacing control signals between different subsystems.
2. Telecommunications: Level shifting and isolation of data signals in communication networks.
3. Automotive Electronics: Signal isolation and translation in automotive control systems.
4. Medical Equipment: Galvanic isolation for patient safety in medical devices.
5. Power Systems: Isolating control signals in power distribution and monitoring systems.

Detailed and Complete Alternative Models

1. MAX1485EUB - Maxim Integrated
2. ISO3086DW - Texas Instruments
3. SI8420AB-D-IS - Silicon Labs
4. LTC6820-1 - Analog Devices
5. TLP2355 - Toshiba

Note: This list is not exhaustive and other alternative models may exist.

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