GENERAL DESCRIPTION

The ADuM41501 is a 6-channel, SPIsolator? digital isolator optimized for isolated serial peripheral interfaces (SPIs). Based on the Analog Devices, Inc., iCoupler? chip scale transformer technology, the low propagation delay in the CLK, MO/SI, MI/SO, and SS SPI bus signals supports SPI clock rates of up to 17 MHz. These channels operate with 13 ns propagation delay and 1 ns jitter to optimize timing for SPI.

The ADuM4150 isolator also provides two additional independent low data rate isolation channels, one channel in each direction. Data in the slow channels is sampled and serialized for a 250 kbps data rate with 2.5 μs of jitter.

The ADuM4150 supports a delay clock output on the master side of the device. This output can be used with an additional clocked port on the master to support 40 MHz clock performance. See the Delay Clock section for more information.

FEATURES

Supports up to 40 MHz SPI clock speed in delay clock mode

Supports up to 17 MHz SPI clock speed in 4-wire mode

4 high speed, low propagation delay, SPI signal isolation channels

2 data channels at 250 kbps

Delayed compensation clock line

20-lead SOIC_IC with 8.3 mm creepage

High temperature operation: 125°C

High common-mode transient immunity: >25 kV/μs

Safety and regulatory approvals

UL recognition per UL 1577

5000 V rms for 1 minute SOIC long package

CSA Component Acceptance Notice 5A

VDE certificate of conformity

DIN V VDE V 0884-10 (VDE V 0884-10):2006-12

VIORM = 849 V peak

APPLICATIONS

Industrial programmable logic controllers (PLC)

Sensor isolation