Overview
The ADUM3151ARSZ-RL7, produced by Analog Devices Inc., is a 7-channel digital isolator optimized for isolated serial peripheral interfaces (SPIs). This component utilizes Analog Devices' iCoupler® chip scale transformer technology, ensuring high-speed and low-propagation delay in SPI signal isolation. It is designed to support SPI clock rates up to 17 MHz, making it suitable for high-speed applications. The device is packaged in a 20-lead SSOP package with a creepage distance of 5.1 mm, enhancing its safety and reliability in various environments.
Key Specifications
| Parameter | Symbol | Min | Typ | Max | Unit | Test Conditions/Comments |
|---|---|---|---|---|---|---|
| SPI Clock Speed | - | - | - | 17 MHz | - | |
| Propagation Delay | - | - | - | 14 ns | - | |
| Jitter | - | - | - | 1 ns | - | |
| Supply Current (1 MHz, A Grade) | IDD1 | 4.0 | 8.5 | 14.0 | mA | CL = 0 pF, low speed channels |
| Supply Current (17 MHz, B Grade) | IDD1 | - | - | 22 | mA | CL = 0 pF, low speed channels |
| Input to Output Resistance | RI-O | - | - | 10^12 | Ω | - |
| Input to Output Capacitance | CI-O | - | - | 1.0 | pF | f = 1 MHz |
| Input Capacitance | CI | - | - | 4.0 | pF | From any input data pin to ground |
| Operating Temperature | - | - | - | 125°C | - | |
| Common-Mode Transient Immunity | - | - | - | >25 kV/µs | - |
Key Features
- Supports up to 17 MHz SPI clock speed
- Four high-speed, low-propagation delay SPI signal isolation channels
- Three 250 kbps data channels
- 20-lead SSOP package with 5.1 mm creepage
- High temperature operation: up to 125°C
- High common-mode transient immunity: >25 kV/µs
- Safety and regulatory approvals: UL recognition per UL 1577, CSA Component Acceptance Notice 5A, VDE certificate of conformity DIN V VDE V 0884-10 (VDE V 0884-10):2006-12, VIORM = 565 V peak
Applications
- Industrial programmable logic controllers (PLCs)
- Sensor isolation
- Other high-speed SPI-based systems requiring isolation
Q & A
- What is the maximum SPI clock speed supported by the ADUM3151ARSZ-RL7?
The ADUM3151ARSZ-RL7 supports up to 17 MHz SPI clock speed.
- What is the propagation delay of the SPI signals in the ADUM3151ARSZ-RL7?
The propagation delay is 14 ns with 1 ns jitter.
- What is the package type and creepage distance of the ADUM3151ARSZ-RL7?
The device is packaged in a 20-lead SSOP package with a creepage distance of 5.1 mm.
- What are the safety and regulatory approvals for the ADUM3151ARSZ-RL7?
The device has UL recognition per UL 1577, CSA Component Acceptance Notice 5A, VDE certificate of conformity DIN V VDE V 0884-10 (VDE V 0884-10):2006-12, and VIORM = 565 V peak.
- What is the maximum operating temperature of the ADUM3151ARSZ-RL7?
The maximum operating temperature is 125°C.
- What is the common-mode transient immunity of the ADUM3151ARSZ-RL7?
The common-mode transient immunity is greater than 25 kV/µs.
- What are the typical applications of the ADUM3151ARSZ-RL7?
Typical applications include industrial programmable logic controllers (PLCs) and sensor isolation.
- How many data channels does the ADUM3151ARSZ-RL7 have, and what are their speeds?
The device has three 250 kbps data channels.
- What technology is used in the ADUM3151ARSZ-RL7 for isolation?
The device uses Analog Devices' iCoupler® chip scale transformer technology.
- What is the input to output resistance of the ADUM3151ARSZ-RL7?
The input to output resistance is 10^12 Ω.
