Overview
The ADuM1200WSRZ55 is a dual-channel digital isolator produced by Analog Devices Inc., utilizing the iCoupler® technology. This component combines high-speed CMOS and monolithic transformer technologies to provide reliable and high-performance isolation. It is designed for applications requiring precise timing characteristics, high common-mode transient immunity, and robust safety features.
Key Specifications
| Parameter | Symbol | Min | Typ | Max | Unit | Test Conditions |
|---|---|---|---|---|---|---|
| Input Supply Current per Channel (Quiescent) | IDDI (Q) | 0.50 | 0.60 | 1.1 | mA | VDD1 = VDD2 = 5 V, 0 Mbps to 2 Mbps |
| Output Supply Current per Channel (Quiescent) | IDDO (Q) | 0.50 | 0.60 | 1.1 | mA | VDD1 = VDD2 = 5 V, 0 Mbps to 2 Mbps |
| Dynamic Supply Current per Channel | IDDI (D), IDDO (D) | 0.19 | 0.05 | mA/Mbps | At 10 Mbps and 25 Mbps data rates | |
| Propagation Delay (tPHL, tPLH) | 15 | 50 | 150 | ns | CL = 15 pF, CMOS signal levels | |
| Pulse Width Distortion (PWD) | 40 | ns | CL = 15 pF, CMOS signal levels | |||
| Output Rise/Fall Time (10% to 90%) | tR/tF | 10 | ns | CL = 15 pF, CMOS signal levels | ||
| Supply Voltages (VDD1, VDD2) | 2.7 | 5.5 | V | 3 V/5 V operation | ||
| Ambient Operating Temperature (TA) | −55 | 125 | °C | |||
| Common-Mode Transients (CML, CMH) | 100 kV/µs | VCM = 1000 V, transient magnitude = 800 V |
Key Features
- High-Speed Data Transfer: Supports data rates up to 25 Mbps (NRZ).
- Precise Timing Characteristics: Maximum pulse width distortion of 3 ns and channel-to-channel matching of 50 ns.
- High Common-Mode Transient Immunity: >25 kV/µs.
- Level Translation: Supports 3 V/5 V or 5 V/3 V operation.
- Safety and Regulatory Approvals: UL recognition 2500 V rms for 1 minute per UL 1577, CSA Component Acceptance Notice #5A, VDE Certificate of Conformity DIN V VDE V 0884-10.
- Low Power Operation: Quiescent supply current as low as 0.5 mA per channel.
- Automotive and Industrial Applications: Qualified for automotive and industrial use, including hybrid electric vehicles, battery monitors, and motor drives.
Applications
- Size-Critical Multichannel Isolation: Ideal for applications where space is limited.
- SPI Interface/Data Converter Isolation: Used in SPI interfaces and data converter applications to ensure signal integrity.
- RS-232/RS-422/RS-485 Transceiver Isolation: Suitable for isolating serial communication interfaces.
- Digital Field Bus Isolation: Used in digital field bus systems to ensure reliable and isolated communication.
- Hybrid Electric Vehicles, Battery Monitors, and Motor Drives: Qualified for use in automotive and industrial applications.
Q & A
- What is the maximum data rate supported by the ADuM1200WSRZ55?
The ADuM1200WSRZ55 supports data rates up to 25 Mbps (NRZ).
- What are the supply voltage ranges for the ADuM1200WSRZ55?
The supply voltages range from 2.7 V to 5.5 V for both VDD1 and VDD2, supporting 3 V/5 V or 5 V/3 V operation.
- What is the propagation delay of the ADuM1200WSRZ55?
The propagation delay (tPHL, tPLH) is between 15 ns and 150 ns, depending on the configuration.
- Does the ADuM1200WSRZ55 have any safety and regulatory approvals?
Yes, it has UL recognition 2500 V rms for 1 minute per UL 1577, CSA Component Acceptance Notice #5A, and VDE Certificate of Conformity DIN V VDE V 0884-10.
- What is the common-mode transient immunity of the ADuM1200WSRZ55?
The common-mode transient immunity is greater than 25 kV/µs.
- Can the ADuM1200WSRZ55 operate in high-temperature environments?
Yes, it can operate up to 125°C.
- What are some typical applications of the ADuM1200WSRZ55?
It is used in size-critical multichannel isolation, SPI interface/data converter isolation, RS-232/RS-422/RS-485 transceiver isolation, digital field bus isolation, and in hybrid electric vehicles, battery monitors, and motor drives.
- How does the ADuM1200WSRZ55 handle level translation?
The ADuM1200WSRZ55 supports 3 V/5 V or 5 V/3 V level translation.
- What is the quiescent supply current of the ADuM1200WSRZ55?
The quiescent supply current is as low as 0.5 mA per channel.
- Is the ADuM1200WSRZ55 suitable for automotive applications?
Yes, it is qualified for automotive applications, including hybrid electric vehicles, battery monitors, and motor drives.
