Overview
The ADUM3154BRSZ-RL7, produced by Analog Devices Inc., is a digital isolator optimized for serial peripheral interface (SPI) applications. This component is designed to support up to four slave devices, making it highly versatile for various electronic systems. It utilizes Analog Devices' iCoupler® chip scale transformer technology, ensuring low propagation delay and jitter in SPI bus signals. This allows for high-speed SPI clock rates of up to 17 MHz, making it suitable for demanding applications that require reliable and fast data transfer.
Key Specifications
| Parameter | Min | Typ | Max | Unit | Test Conditions/Comments |
|---|---|---|---|---|---|
| Supply Current (IDD1) | 4.8 | 8.5 | 18 | mA | CL = 0 pF, DRFAST = 1 MHz, DRSLOW = 0 MHz |
| Supply Current (IDD2) | 6.5 | 13 | 19 | mA | CL = 0 pF, DRFAST = 17 MHz, DRSLOW = 0 MHz |
| Input Threshold Logic High (VIH) | 0.7 × VDDx | V | |||
| Input Threshold Logic Low (VIL) | 0.3 × VDDx | V | |||
| Input Hysteresis (VIHYST) | 500 | mV | |||
| Input Current per Channel (II) | -1 | 0.01 | 1 | µA | 0 V ≤ VINPUT ≤ VDDx |
| SPI Clock Speed | 17 | MHz | |||
| Package Type | 20-lead SSOP | 5.1 mm creepage | |||
| Operating Temperature | 125 | °C |
Key Features
- Supports up to 17 MHz SPI clock speed
- Four high-speed, low propagation delay, SPI signal isolation channels
- Supports up to four slave devices through a slave select multiplexing system
- 20-lead SSOP package with 5.1 mm creepage
- High temperature operation: up to 125°C
- High common-mode transient immunity
- Low speed, 2-channel address bus for selecting target slave devices
Applications
The ADUM3154BRSZ-RL7 is suitable for a variety of applications that require high-speed SPI communication and isolation. These include industrial control systems, medical devices, automotive systems, and any other environment where data integrity and isolation are critical. The component's ability to support multiple slave devices makes it particularly useful in complex systems where multiple peripherals need to be controlled.
Q & A
- What is the maximum SPI clock speed supported by the ADUM3154BRSZ-RL7?
The ADUM3154BRSZ-RL7 supports up to 17 MHz SPI clock speed. - How many slave devices can the ADUM3154BRSZ-RL7 support?
The component can support up to four slave devices through its slave select multiplexing system. - What is the package type of the ADUM3154BRSZ-RL7?
The component is packaged in a 20-lead SSOP with 5.1 mm creepage. - What is the maximum operating temperature of the ADUM3154BRSZ-RL7?
The maximum operating temperature is 125°C. - How does the ADUM3154BRSZ-RL7 select target slave devices?
The component uses a low speed, 2-channel address bus to select target slave devices. - What technology is used in the ADUM3154BRSZ-RL7 for isolation?
The ADUM3154BRSZ-RL7 uses Analog Devices' iCoupler® chip scale transformer technology for isolation. - What is the typical supply current for the ADUM3154BRSZ-RL7 at 1 MHz clock speed?
The typical supply current is around 8.5 mA for IDD1 and 13 mA for IDD2 at 1 MHz clock speed. - Does the ADUM3154BRSZ-RL7 have high common-mode transient immunity?
Yes, the component has high common-mode transient immunity. - Can the ADUM3154BRSZ-RL7 be used in industrial control systems?
Yes, it is suitable for industrial control systems due to its high-speed SPI communication and isolation capabilities. - Where can I find detailed specifications and datasheets for the ADUM3154BRSZ-RL7?
Detailed specifications and datasheets can be found on the official Analog Devices website, as well as on distributor websites like Digi-Key and LCSC.
