ADuM4150 Datasheet | Analog Devices

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 pensation clock line 20-lead SOIC_IC with 8.3 mm creepage High temperature operation: 125°C High mon-mode transient immunity: >25 k V/µs Safety and regulatory approvals UL recognition per UL 1577 5000 V rms for 1 minute SOIC long package CSA ponent 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 GENERAL DESCRIPTION The ADu M41501 is a 6-channel, SPIsolator™ digital isolator optimized for isolated serial peripheral interfaces (SPIs). Based on the Analog Devices, Inc., i Coupler® 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 ADu M4150 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 ADu M4150 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. FUNCTIONAL BLOCK DIAGRAM VDD1 1 GND1 2 MCLK 3 MO 4 MI 5 MSS 6 ADu M4150 ENCODE ENCODE DECODE ENCODE VIA 7 VOB 8 DCLK 9 GND1 10 CONTROL BLOCK CLK DELAY DECODE DECODE ENCODE DECODE CONTROL BLOCK Figure 1. 20 VDD2 19 GND2 18 SCLK 17 SI 16 SO 15 SSS 14 VOA 13 VIB 12 NIC 11 GND2 12371-001 Table 1. Related Products Product ADu M3150 ADu M3151/ADu M3152/ ADu M3153 ADu M3154 ADu M4151/ADu M4152/ ADu M4153 ADu M4154 Description 3.75 k V, high...