ADUM4154 5 kV, Dedicated Isolators for SPI Interfaces (with Control for up to 4 Slaves)
The ADuM41541 is an SPIsolator™ digital isolator optimized for a serial peripheral interface (SPI) that includes support for up to four slave devices. Based on the Analog Devices, Inc iCoupler® chip scale transformer technology, the low propagation delay and jitter in the CLK, MO/SI, MI/SO, and SS SPI bus signals support SPI clock rates of up to 17 MHz.
The ADuM4154 isolator also provides a slave select multiplexing
system that allows up to four slave devices to be serviced from
one isolator. When a target slave is selected, the slave select
signal propagates to the desired output with low propagation
delay, allowing tight timing control. The isolated SSx is addressed
through a 250 kbps low speed, 2-channel address bus, allowing
the target slave device to be changed in as little as 2.5 μs.
Applications
- Industrial programmable logic controllers (PLCs)
- Sensor isolation
Features and Benefits- Supports up to 17 MHz SPI clock speed
- 4 high speed, low propagation delay, SPI signal isolation channels
- Supports up to 4 slave devices
- 20-lead SOIC_IC package with 8.3 mm creepage
- High temperature operation: 125°C
- High common-mode transient immunity: >25 kV/μs
- See datasheet for additonal features
| IBIS Models |
Data Sheets
Order Information
| Part Number | Package | Packing Qty | Temp Range | Price 100-499 | Price 1000+ | RoHS |
|---|
| ADUM4154ARIZ Production | 20 ld SOIC (increased Creepage) | OTH 31 | -40 to 125C | 3.86 | 3.35 | Y |
| ADUM4154ARIZ-RL Production | 20 ld SOIC (increased Creepage) | REEL 1000 | -40 to 125C | 0 | 3.35 | Y |
| ADUM4154BRIZ Production | 20 ld SOIC (increased Creepage) | OTH 31 | -40 to 125C | 5.01 | 4.35 | Y |
| ADUM4154BRIZ-RL Production | 20 ld SOIC (increased Creepage) | REEL 1000 | -40 to 125C | 0 | 4.35 | Y |
Evaluation Boards
| Part Number | Description | Price | RoHS |
|---|
| EVAL-ADUM3154Z | Evaluation Board | 49 | Y |
