Overview
The ADUM3151BRSZ is a 7-channel SPIsolator™ digital isolator designed by Analog Devices Inc. It is optimized for isolated serial peripheral interfaces (SPIs) and utilizes the iCoupler® chip scale transformer technology. This isolator provides three additional independent low data rate isolation channels in three different channel direction combinations. It is certified with various safety and regulatory approvals, including UL recognition per UL 1577, CSA Component Acceptance Notice 5A, VDE certificate of conformity, and DIN V VDE V 0884-10:2006-12, with an isolation rating of 3750V rms for 1 minute and VIORM = 565V peak.
Key Specifications
| Parameter | Value |
|---|---|
| Number of Channels | 7 |
| Maximum Data Rate | 17 MHz |
| Maximum Propagation Delay | 14 ns at 5V |
| Isolation Rating | 3750 Vrms for 1 minute |
| Common-Mode Transient Immunity | >25 kV/μs |
| Operating Temperature Range | −40°C to +125°C |
| Package Type | 20-lead SSOP |
| Voltage Range | 3V to 5.5V |
| Logic Family | CMOS |
Key Features
- High-speed, low propagation delay SPI signal isolation channels supporting up to 17 MHz SPI clock speed
- Three additional independent low data rate isolation channels with up to 250 kbps data rate
- High common-mode transient immunity of >25 kV/μs
- Operating temperature range of −40°C to +125°C
- 20-lead SSOP package with 5.1 mm creepage
- Safety and regulatory approvals including UL, CSA, VDE, and DIN certifications
Applications
- Industrial programmable logic controllers (PLCs)
- Sensor isolation
- Other applications requiring isolated serial peripheral interfaces (SPIs)
Q & A
- What is the ADUM3151BRSZ used for?
The ADUM3151BRSZ is used for isolated serial peripheral interfaces (SPIs), particularly in applications such as industrial programmable logic controllers (PLCs) and sensor isolation.
- What is the maximum data rate supported by the ADUM3151BRSZ?
The ADUM3151BRSZ supports a maximum data rate of 17 MHz.
- What is the isolation rating of the ADUM3151BRSZ?
The isolation rating of the ADUM3151BRSZ is 3750 Vrms for 1 minute.
- What is the operating temperature range of the ADUM3151BRSZ?
The operating temperature range is −40°C to +125°C.
- What type of package does the ADUM3151BRSZ come in?
The ADUM3151BRSZ comes in a 20-lead SSOP package.
- Does the ADUM3151BRSZ have any safety certifications?
Yes, it has certifications from UL, CSA, VDE, and DIN.
- What is the common-mode transient immunity of the ADUM3151BRSZ?
The common-mode transient immunity is >25 kV/μs.
- How many channels does the ADUM3151BRSZ have?
The ADUM3151BRSZ has 7 channels.
- What is the propagation delay of the ADUM3151BRSZ?
The maximum propagation delay is 14 ns at 5V.
- Can the ADUM3151BRSZ be used in high-temperature environments?
Yes, it can operate up to 125°C.
