Overview
The ADuM1201AR-RL7, produced by Analog Devices Inc., is a dual-channel digital isolator that utilizes the company's iCoupler technology. This device is designed to provide high-speed data transfer and electrical isolation between two independent channels. It is particularly useful in applications requiring voltage translation and precise timing characteristics across the isolation barrier. The ADuM1201AR-RL7 supports a wide range of data rates and is qualified for high-temperature operation, making it suitable for various industrial and automotive applications.
Key Specifications
| Parameter | Min | Typ | Max | Unit | Test Conditions |
|---|---|---|---|---|---|
| Input Supply Voltage (VDD1, VDD2) | 4.5 | - | 5.5 | V | - |
| Input Supply Current per Channel (Quiescent) | 0.26 | 0.35 | - | mA | VDD1 = VDD2 = 3.0 V, TA = 25°C |
| Output Supply Current per Channel (Quiescent) | 0.11 | 0.20 | - | mA | VDD1 = VDD2 = 3.0 V, TA = 25°C |
| Maximum Data Rate | - | - | 10 Mbps | - | CL = 15 pF, CMOS signal levels |
| Propagation Delay (tPHL, tPLH) | 20 | - | 50 ns | - | CL = 15 pF, CMOS signal levels |
| Pulse Width Distortion (PWD) | - | - | 3 ns | - | CL = 15 pF, CMOS signal levels |
| Channel-to-Channel Matching | - | - | 3 ns | - | CL = 15 pF, CMOS signal levels |
| Output Rise/Fall Time (10% to 90%) | - | - | 10 ns | - | CL = 15 pF, CMOS signal levels |
Key Features
- Bidirectional Communication: Supports bidirectional data transfer between the isolated channels.
- High Data Rate: Capable of operating at data rates up to 25 Mbps (NRZ).
- Precise Timing Characteristics: Offers low pulse width distortion (<3 ns) and tight channel-to-channel matching (<3 ns).
- High Temperature Operation: Qualified for operation up to 125°C, including automotive-grade versions.
- Voltage Translation: Provides 3 V/5 V level translation across the isolation barrier.
- High Common-Mode Transient Immunity: >25 kV/μs.
- Safety and Regulatory Approvals: UL recognition, CSA Component Acceptance Notice, VDE Certificate of Conformity.
- Refresh Feature: Ensures dc correctness in the absence of input logic transitions and during power-up/power-down conditions.
Applications
- Size-Critical Multichannel Isolation: Ideal for applications where space is limited.
- SPI Interface/Data Converter Isolation: Used in SPI and data converter interfaces to ensure isolation.
- RS-232/RS-422/RS-485 Transceiver Isolation: Suitable for isolating serial communication interfaces.
- Digital Field Bus Isolation: Used in various field bus applications to ensure electrical isolation.
- Hybrid Electric Vehicles, Battery Monitor, and Motor Drive: Qualified for automotive applications, including hybrid electric vehicles and motor drives.
Q & A
- What is the maximum data rate supported by the ADuM1201AR-RL7?
The ADuM1201AR-RL7 supports a maximum data rate of up to 10 Mbps.
- What is the operating temperature range of the ADuM1201AR-RL7?
The device is qualified for operation up to 125°C, including automotive-grade versions.
- Does the ADuM1201AR-RL7 support bidirectional communication?
Yes, the ADuM1201AR-RL7 supports bidirectional communication between the isolated channels.
- What is the typical propagation delay of the ADuM1201AR-RL7?
The typical propagation delay (tPHL, tPLH) is between 20 ns to 50 ns.
- What safety and regulatory approvals does the ADuM1201AR-RL7 have?
The device has UL recognition, CSA Component Acceptance Notice, and VDE Certificate of Conformity.
- What is the purpose of the refresh feature in the ADuM1201AR-RL7?
The refresh feature ensures dc correctness in the absence of input logic transitions and during power-up/power-down conditions.
- Can the ADuM1201AR-RL7 be used in automotive applications?
Yes, the ADuM1201AR-RL7 is qualified for automotive applications, including hybrid electric vehicles and motor drives.
- What is the common-mode transient immunity of the ADuM1201AR-RL7?
The device has a high common-mode transient immunity of >25 kV/μs.
- Does the ADuM1201AR-RL7 support voltage translation?
Yes, the device provides 3 V/5 V level translation across the isolation barrier.
- What are some typical applications of the ADuM1201AR-RL7?
Typical applications include size-critical multichannel isolation, SPI interface/data converter isolation, RS-232/RS-422/RS-485 transceiver isolation, and digital field bus isolation.
