EVALUATION KIT AVAILABLE Click here to ask about production status of specific part numbers. MAX22195 High-Speed, Octal, Industrial Digital Input with Parallel Output General Description Benefits and Features The MAX22195 translates eight 24V industrial digital inputs High-Speed, Industrial Digital Inputs to eight CMOS-compatible, parallel outputs. Propagation 300ns Maximum Propagation Delay delay from input-to-output is less than 300ns for all channels. 10ns Maximum Channel-to-Channel Skew Current-limiters on each digital input greatly reduce power Parallel Output for Simultaneous Signal Delivery dissipation compared to traditional resistive inputs. The High Integration Reduces BOM Count and Board Space accuracy of these current-limiters minimizes power Operates Directly from Field Supply (7V to 65V) dissipation while ensuring compliance with the IEC Compatible with 3.3V or 5V Logic 61131-2 standard. A current-setting resistor allows the 5mm x 5mm, 32-TQFN Package MAX22195 to be configured for Type 1, Type 2, or Type Low Power and Low Heat Dissipation 3 inputs. Additionally, the MAX22195 has energyless field- Low Quiescent Current (1.2mA Maximum) side LED drivers to meet the indicator light requirement of IEC 61131-2 with no additional power dissipation. Accurate Input Current-Limiters Energyless Field-Side LED Drivers The MAX22195 provides a 3.3V integrated voltage regulator. The internal LDO accepts the field supply Fault Tolerant with Built-In Diagnostics V from 7V to 65V. The internal LDO output can Integrated Field-Side Supply Monitor DD24 supply up to 25mA of current in addition to powering the Integrated Over-Temperature Monitor basic MAX22195 requirements. This MAX22195 LDO Current-Setting Resistor Monitor current can be used to power digital isolators and other Configurability Enables Wide Range of Applications field-side circuits. Alternatively, the MAX22195 can be powered Configurable IEC 61131-2 Types 1, 2, 3 Inputs from a 3.0V to 5.5V supply connected to V pin. DD3 Configurable Input Current Limiting from 0.56mA to The MAX22195 includes an open-drain READY output 3.97mA that asserts high to indicate the MAX22195 is functional. Robust Design If the V field-side supply voltage is too low, or a fault DD24 1kV Surge Tolerant using Minimum 1k Resistor in the current-setting resistor is detected, or the device 8kV Contact ESD and 15kV Air Gap ESD Using reaches an over-temperature condition, the READY sig- Minimum 1k Resistor nal is set to high-impedance. -40C to +125C Ambient Operating Temperature Applications Programmable Logic Controllers Industrial Automation Process Automation Ordering Information appears at end of data sheet. Building Automation 19-100330 Rev 6 3/21MAX22195 High-Speed, Octal, Industrial Digital Input with Parallel Output Octal Digital Input with Parallel Output 24V 3.3V 1F 0.1F 0.1F 1F V V V DD24 DD3 DD EXTVM RDYEN 8.6k REFDI 1.5k IN1 READY GPI LED1 4.7k MICROCONTROLLER 1.5k IN2 MAX22195 LED2 OP1 GPI1 OP2 GPI2 OP3 GPI3 OP4 GPI4 INF (INPUT FIELD) INP (INPUT PIN) OP5 GPI5 1.5k IN8 OP6 GPI6 OP7 GPI7 LED8 OP8 GPI8 GND GND Maxim Integrated 2 www.maximintegrated.com