MAX14931CASE+

The MAX14931CASE+ from Maxim Integrated Products is a 4 channel, 2.75KVRMS digital isolator in 16 pin NSOIC package. This device transfers digital signals between circuits with different power domains at ambient temperatures up to +125°C. It offers all three possible unidirectional channel configurations to accommodate any 4 channel design including SPI, RS232, RS485 and digital I/O applications. Independent 1.71V to 5.5V supplies on each side of the isolator also make the device suitable for use as level translators. This digital isolator has low power consumption at high data rates (2.5mA per channel typical at 1Mbps and 5.25mA per channel typical at 100Mbps (at 1.8V), 2.6mA per channel typical at 1Mbps and 7.1mA per channel typical at 100Mbps (at 3.3V)). Typical applications include fieldbus communications for industrial automation, isolated SPI, RS232, RS485/RS422, general multichannel isolation applications, battery management and medical systems.

• 3/1 channel configuration, 150Mbps data rate, default high output
• 25KV/µs common mode transient immunity, 6.67ns minimum pulse width
• Robust galvanic isolation of digital signals
• Interfaces directly with most micros and FPGAs
• 1.58V undervoltage lockout threshold, 50mV undervoltage lockout threshold hysteresis
• Withstands ±10KV surge per IEC 61000-4-5
• Supply current (IDDA) is 3.4mA at VDDA = 5V, 500KHz square wave
• UL according to UL1577, cUL according to CSA bulletin 5A, VDE 0884-10 and TUV approvals
• Operating temperature range from -40°C to 125°C