Overview
The ADUM7442CRQZ-RL7 is a 4-channel digital isolator produced by Analog Devices Inc. This component is part of the ADuM7440/ADuM7441/ADuM7442 family, which utilizes Analog Devices' iCoupler® technology. This technology combines high-speed CMOS and monolithic air core transformer technologies to provide superior performance characteristics compared to optocoupler devices and other integrated couplers. The ADUM7442CRQZ-RL7 is designed for general-purpose, multichannel isolation and is particularly useful in applications requiring high speed and low power consumption.
Key Specifications
| Parameter | Value | Unit | Test Conditions |
|---|---|---|---|
| Manufacturer | Analog Devices Inc. | ||
| Part Number | ADUM7442CRQZ-RL7 | ||
| Package | QSOP-16-150mil | ||
| Number of Channels | 4 | ||
| Isolation Voltage | 1000 Vrms | ||
| Operating Temperature | -40°C to 105°C | ||
| Supply Voltage | 3.0 V to 5.5 V | ||
| Data Rate | Up to 25 Mbps | ||
| Common-Mode Transient Immunity | >15 kV/μs | VIx = VDDx, VCM = 1000 V, transient magnitude = 800 V | |
| Output Rise/Fall Time | 2.0 ns (typ) | ns | 10% to 90% |
| Quiescent Input Supply Current | 0.76 mA to 0.95 mA | mA | Per channel at 0 Mbps to 1 Mbps |
| Dynamic Input Supply Current | 0.26 mA/Mbps | mA/Mbps | Per channel |
Key Features
- Small Form Factor: Packaged in a 16-lead QSOP, which frees almost 70% of board space compared to traditional 16-lead wide SOIC packages.
- High Isolation Rating: 1000 Vrms isolation rating with safety and regulatory approvals including UL 1577.
- Low Power Operation: Low power consumption, with supply currents as low as 1.5 mA per channel at 0 Mbps to 1 Mbps for 3.3 V operation and 2.25 mA per channel at 0 Mbps to 1 Mbps for 5 V operation.
- High Speed Data Rate: Supports data rates up to 25 Mbps with low pulse width distortion (<5 ns for C grade).
- High Common-Mode Transient Immunity: >15 kV/μs common-mode transient immunity.
- Input Glitch Filter: Includes an input glitch filter to protect against extraneous noise disturbances.
- Wide Operating Temperature Range: Operates from -40°C to 105°C.
Applications
- General-Purpose Isolation: Suitable for various general-purpose isolation needs.
- SPI Interface/Data Converter Isolation: Ideal for isolating SPI interfaces and data converters.
- RS-232/RS-422/RS-485 Transceivers: Used in isolating RS-232, RS-422, and RS-485 transceivers.
- Industrial Field Bus Isolation: Applicable in industrial field bus isolation applications).
Q & A
- What is the ADUM7442CRQZ-RL7 used for?
The ADUM7442CRQZ-RL7 is a 4-channel digital isolator used for general-purpose, multichannel isolation in various applications, including SPI interfaces, data converters, RS-232/RS-422/RS-485 transceivers, and industrial field bus isolation).
- What is the isolation voltage rating of the ADUM7442CRQZ-RL7?
The ADUM7442CRQZ-RL7 has a 1000 Vrms isolation voltage rating).
- What is the maximum data rate supported by the ADUM7442CRQZ-RL7?
The ADUM7442CRQZ-RL7 supports data rates up to 25 Mbps).
- What is the operating temperature range of the ADUM7442CRQZ-RL7?
The operating temperature range of the ADUM7442CRQZ-RL7 is from -40°C to 105°C).
- What is the supply voltage range for the ADUM7442CRQZ-RL7?
The supply voltage range for the ADUM7442CRQZ-RL7 is from 3.0 V to 5.5 V).
- Does the ADUM7442CRQZ-RL7 have any regulatory approvals?
Yes, the ADUM7442CRQZ-RL7 has safety and regulatory approvals including UL 1577).
- What is the common-mode transient immunity of the ADUM7442CRQZ-RL7?
The ADUM7442CRQZ-RL7 has a common-mode transient immunity of >15 kV/μs).
- How many channels does the ADUM7442CRQZ-RL7 have?
The ADUM7442CRQZ-RL7 has four independent isolation channels).
- What is the package type of the ADUM7442CRQZ-RL7?
The ADUM7442CRQZ-RL7 is packaged in a 16-lead QSOP).
- Does the ADUM7442CRQZ-RL7 have an input glitch filter?
Yes, the ADUM7442CRQZ-RL7 includes an input glitch filter to protect against extraneous noise disturbances).
