Overview
The ADUM3150BRSZ-RL7, produced by Analog Devices Inc., is a 6-channel SPIsolator™ digital isolator designed to optimize isolated serial peripheral interfaces (SPIs). This device leverages Analog Devices' iCoupler® chip scale transformer technology to provide high-speed, low-propagation-delay SPI signal isolation. It is particularly useful in applications requiring reinforced electrical isolation and protection from noise and high voltage effects.
Key Specifications
| Parameter | Symbol | Min | Typ | Max | Unit | Test Conditions/Comments |
|---|---|---|---|---|---|---|
| SPI Clock Speed (Delay Clock Mode) | - | - | 40 | MHz | - | |
| SPI Clock Speed (4-Wire Mode) | - | - | 17 | MHz | - | |
| Propagation Delay | - | 14 | - | ns | CLK, MO/SI, MI/SO, SS SPI bus signals | |
| Jitter | - | 1 | - | ns | - | |
| Low Data Rate Channels | - | - | 250 | kbps | Each direction | |
| Input-to-Output Resistance | RI-O | 1012 | - | - | 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 |
| Rated Dielectric Insulation Voltage | - | - | 3750 | Vrms | 1-minute duration | |
| Minimum External Air Gap (Clearance) | L(I01) | 5.1 | - | - | mm | Measured from input terminals to output terminals |
Key Features
- Supports up to 40 MHz SPI clock speed in delay clock mode and up to 17 MHz in 4-wire mode.
- Four high-speed, low-propagation-delay SPI signal isolation channels with 14 ns propagation delay and 1 ns jitter.
- Two additional independent low data rate isolation channels, each operating at 250 kbps with 2.5 μs of jitter.
- Delayed compensation clock line to support 40 MHz clock performance.
- Based on iCoupler® chip scale transformer technology for reinforced electrical isolation.
- Compliant with various regulatory standards including UL, CSA, and VDE for safety and insulation.
Applications
The ADUM3150BRSZ-RL7 is widely used in various applications requiring high-speed data isolation and protection from noise and high voltage. These include:
- Medical devices: For isolating subsystems to ensure patient safety.
- Industrial bus control: In systems such as industrial Ethernet and fieldbus.
- Aircraft electronic systems: For isolating critical subsystems in avionics.
- Radar data buses: To ensure reliable and isolated data transmission.
- Analog-to-digital conversion: In applications requiring precise and isolated signal conversion.
Q & A
- What is the maximum SPI clock speed supported by the ADUM3150BRSZ-RL7 in delay clock mode?
The ADUM3150BRSZ-RL7 supports up to 40 MHz SPI clock speed in delay clock mode. - How many SPI signal isolation channels does the ADUM3150BRSZ-RL7 have?
The device has four high-speed SPI signal isolation channels. - What is the propagation delay of the SPI bus signals in the ADUM3150BRSZ-RL7?
The propagation delay is 14 ns with 1 ns jitter. - Does the ADUM3150BRSZ-RL7 have additional low data rate channels?
Yes, it has two independent low data rate isolation channels, each operating at 250 kbps. - What is the rated dielectric insulation voltage of the ADUM3150BRSZ-RL7?
The rated dielectric insulation voltage is 3750 Vrms for a 1-minute duration. - Is the ADUM3150BRSZ-RL7 compliant with regulatory standards?
Yes, it is compliant with UL, CSA, and VDE standards for safety and insulation. - In what types of applications is the ADUM3150BRSZ-RL7 commonly used?
It is used in medical devices, industrial bus control, aircraft electronic systems, radar data buses, and analog-to-digital conversion. - What technology does the ADUM3150BRSZ-RL7 use for isolation?
The device uses iCoupler® chip scale transformer technology for isolation. - What is the minimum external air gap (clearance) required for the ADUM3150BRSZ-RL7?
The minimum external air gap is 5.1 mm measured from input terminals to output terminals. - Does the ADUM3150BRSZ-RL7 support multiple regulatory certifications?
Yes, it supports certifications from organizations such as UL, CSA, and VDE.
