Maxim's MAX14934-MAX14936 Four-Channel Digital Isolators are four-channel, 5kV digital isolators that transfer digital signals between circuits with different power domains at ambient temperatures up to +125�C. The MAX14934-MAX14936 family offers all three possible unidirectional channel configurations to accommodate any four-channel design, including SPI, RS-232, RS-485, and large digital IO modules. Devices are available with data rates from DC up to 1Mbps, 25Mbps, or 150Mbps. Each device is also available in either a default high or default low configuration. The default is the state an output goes to when its input is unpowered. Independent 1.71V to 5.5V supplies on each side of the isolator also make the devices suitable for use as level translators.
Feature
- 3/1 channel configuration, 150Mbps data rate, default low 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 approvals
- Operating temperature range from -40°C to 125°C
Applications
- Battery Management
- Fieldbus Communications for Industrial Automation
- General Multichannel Isolation Applications
- Isolated SPI, RS-232, RS-485/RS-422
- Medical Systems
