Overview
The ADuM1400WTRWZ is a quad-channel digital isolator produced by Analog Devices Inc., utilizing the company's proprietary iCoupler® technology. This component combines high-speed CMOS and monolithic air core transformer technology to provide superior performance characteristics compared to traditional optocoupler devices. The ADuM1400WTRWZ is designed to eliminate the design difficulties associated with optocouplers, such as uncertain current transfer ratios, nonlinear transfer functions, and temperature and lifetime effects. It offers low power operation, high data rates, and robust isolation, making it suitable for a wide range of applications, including industrial, automotive, and communication systems.
Key Specifications
| Parameter | Symbol | Min | Typ | Max | Unit | Test Conditions |
|---|---|---|---|---|---|---|
| Minimum Pulse Width | PW | 8.3 | 11.1 | - | ns | CL = 15 pF, CMOS signal levels |
| Maximum Data Rate | - | - | - | 90 Mbps | - | CL = 15 pF, CMOS signal levels |
| Propagation Delay | tPHL, tPLH | 20 | 34 | 45 | ns | CL = 15 pF, CMOS signal levels |
| Pulse Width Distortion | PWD | 0.5 | 2 | - | ns | CL = 15 pF, CMOS signal levels |
| Change vs. Temperature | - | - | - | 3 ps/°C | - | CL = 15 pF, CMOS signal levels |
| Propagation Delay Skew | tPSK | - | - | 16 | ns | CL = 15 pF, CMOS signal levels |
| Channel-to-Channel Matching (Codirectional) | tPSKCD | - | - | 2 | ns | CL = 15 pF, CMOS signal levels |
| Channel-to-Channel Matching (Opposing-Directional) | tPSKOD | - | - | 5 | ns | CL = 15 pF, CMOS signal levels |
| Input Supply Current per Channel (Quiescent) | IDDI (Q) | 0.26 | 0.31 | - | mA | 3 V/5 V Operation |
| Output Supply Current per Channel (Quiescent) | IDDO (Q) | 0.19 | 0.21 | - | mA | 3 V/5 V Operation |
| Operating Temperature Range | - | - | - | -40°C to 125°C | - | - |
| Package Type | - | - | - | 16-Lead SOIC_W | - | - |
Key Features
- High-Speed Data Transfer: Supports data rates up to 90 Mbps, making it suitable for high-speed applications.
- Low Power Operation: Consumes significantly less power compared to optocouplers, with quiescent current as low as 0.26 mA per channel.
- Robust Isolation: Provides 2500 Vrms isolation voltage, ensuring reliable operation in harsh environments.
- Temperature Stability: Minimal change in propagation delay with temperature, ensuring consistent performance across a wide temperature range.
- Channel-to-Channel Matching: Tight matching of propagation delays between channels, which is crucial for applications requiring synchronized data transfer.
- Voltage Translation: Operates with supply voltages ranging from 2.7 V to 5.5 V, allowing for voltage translation across the isolation barrier.
- Automotive Grade: Qualified for automotive applications, ensuring reliability and performance in demanding automotive environments.
- Patented Refresh Feature: Ensures dc correctness in the absence of input logic transitions and when power is not applied to one of the supplies.
Applications
- Industrial Control Systems: Used to isolate and protect control signals in industrial environments, enhancing system reliability and safety.
- Automotive Systems: Qualified for use in automotive applications, such as in-vehicle networks and safety systems.
- Communication Systems: Employed in communication equipment to isolate data signals and prevent electrical interference.
- Power Meters and Smart Grids: Used to ensure accurate and isolated measurement of power parameters.
- Servers and Data Centers: Helps in isolating control and data signals to improve system reliability and reduce noise.
Q & A
- What is the ADuM1400WTRWZ?
The ADuM1400WTRWZ is a quad-channel digital isolator produced by Analog Devices Inc., using iCoupler technology.
- What are the key advantages of the ADuM1400WTRWZ over optocouplers?
The ADuM1400WTRWZ offers lower power consumption, higher data rates, and better temperature stability compared to optocouplers.
- What is the maximum data rate supported by the ADuM1400WTRWZ?
The ADuM1400WTRWZ supports data rates up to 90 Mbps.
- What is the operating temperature range of the ADuM1400WTRWZ?
The operating temperature range is from -40°C to 125°C.
- What package type is the ADuM1400WTRWZ available in?
The ADuM1400WTRWZ is available in a 16-Lead SOIC_W package.
- Is the ADuM1400WTRWZ qualified for automotive applications?
- What is the isolation voltage of the ADuM1400WTRWZ?
The ADuM1400WTRWZ provides 2500 Vrms isolation voltage.
- How does the ADuM1400WTRWZ handle dc correctness in the absence of input logic transitions?
The ADuM1400WTRWZ features a patented refresh mechanism to ensure dc correctness even when input logic transitions are absent or when power is not applied to one of the supplies.
- What are some common applications of the ADuM1400WTRWZ?
- How does the ADuM1400WTRWZ improve system reliability?
