Overview
The ADuM1400CRWZ is a quad-channel digital isolator produced by Analog Devices Inc., utilizing their proprietary iCoupler® technology. This device is designed to provide high-speed data transfer with minimal pulse width distortion and tight channel-to-channel matching. It is particularly useful in applications requiring electrical isolation between different voltage domains, ensuring dc correctness even in the absence of input logic transitions or when power is not applied to one of the supplies.
Key Specifications
| Parameter | Symbol | Min | Typ | Max | Unit | Test Conditions |
|---|---|---|---|---|---|---|
| Input Supply Current per Channel, Quiescent | IDDI (Q) | 0.50 | 0.53 | mA | DC to 2 Mbps | |
| Output Supply Current per Channel, Quiescent | IDDO (Q) | 0.19 | 0.21 | mA | DC to 2 Mbps | |
| Total Supply Current, Four Channels | IDD1 (Q), IDD2 (Q) | 1.5 | 2.1 | mA | DC to 1 MHz logic signal freq. | |
| Maximum Data Rate | 90 | 120 | Mbps | CL = 15 pF, CMOS signal levels | ||
| Propagation Delay | tPHL, tPLH | 18 | 27 | 32 ns | CL = 15 pF, CMOS signal levels | |
| Pulse Width Distortion | PWD | 2 ns (CRW grade) | CL = 15 pF, CMOS signal levels | |||
| Channel-to-Channel Matching, Codirectional Channels | tPSKCD | 3 ns | CL = 15 pF, CMOS signal levels |
Key Features
- Quad-channel digital isolation using iCoupler® technology
- High-speed data transfer with minimal pulse width distortion (<2 ns for CRW grade)
- Tight channel-to-channel matching (<2 ns for CRW grade)
- Patented refresh feature ensuring dc correctness in the absence of input logic transitions or when power is not applied to one of the supplies
- Low quiescent current consumption
- Support for various operating temperatures and voltage levels (e.g., 5 V, 3 V, mixed 5 V/3 V or 3 V/5 V)
Applications
- Automotive interfaces (CAN, Audio, Ethernet)
- Industrial I/O
- IO-Link
- Local Interconnect Network (LIN) transceivers
- RS-232 / RS-422 / RS-485 / RS-562 interfaces
- Signal line protection and isolation in various industrial and automotive systems
- Broadband switches and multiprotocol transceivers
Q & A
- What is the ADuM1400CRWZ used for?
The ADuM1400CRWZ is used for quad-channel digital isolation, providing high-speed data transfer with electrical isolation between different voltage domains.
- What technology does the ADuM1400CRWZ use?
The ADuM1400CRWZ uses Analog Devices' proprietary iCoupler® technology.
- What are the key specifications of the ADuM1400CRWZ?
Key specifications include low quiescent current, high data rates up to 120 Mbps, and minimal pulse width distortion.
- What are the typical applications of the ADuM1400CRWZ?
Typical applications include automotive interfaces, industrial I/O, IO-Link, LIN transceivers, and signal line protection.
- How does the ADuM1400CRWZ ensure dc correctness?
The ADuM1400CRWZ ensures dc correctness through a patented refresh feature, even in the absence of input logic transitions or when power is not applied to one of the supplies.
- What are the operating temperature and voltage ranges for the ADuM1400CRWZ?
The device operates over various temperature and voltage ranges, including 5 V, 3 V, and mixed 5 V/3 V or 3 V/5 V configurations.
- What is the propagation delay of the ADuM1400CRWZ?
The propagation delay is typically between 18 ns to 32 ns.
- How does the ADuM1400CRWZ handle channel-to-channel matching?
The device provides tight channel-to-channel matching, with codirectional channels matching within 3 ns.
- Is the ADuM1400CRWZ suitable for high-speed applications?
Yes, the ADuM1400CRWZ is suitable for high-speed applications, supporting data rates up to 120 Mbps.
- Are there automotive-grade versions of the ADuM1400CRWZ?
Yes, there are automotive-grade versions available, such as the ADuM1400CRWZ.
