Reduces footprint by 50% and power loss by up to 60%
As manufacturing becomes increasingly automated, the need for real-time decision-making and feedback loop mechanisms is growing.

Intelligent Industry 4.0 systems require digital input ICs inside the PLC (Programmable Logic Controller) to receive on/off state signals. Therefore, digital input ICs must be small in size, high in performance, and robust for easy integration throughout the manufacturing environment.

Maxim Integrated Korea announced on the 7th that it has newly expanded its digital input IC product family. The 'MAX22192' has been additionally integrated into this family to address Industry 4.0 challenges related to size, power, and performance.

Maxim's IEC61131-2 compliant digital input device portfolio features an ultra-small footprint and adds powerful capabilities.

The product family includes digital input devices that operate on parasitic power without a separate isolated power supply, reducing power loss by up to 60%. All solutions within the product family are equipped with diagnostic functions, and individual components provide performance enhancement capabilities. To improve performance, it provides surge protection of over 1kV, removal of 8 external TVS diodes, and extensive diagnostic functions such as open-wire/breakage diagnosis to increase factory uptime.

Maxim's family of digital input devices includes the MAX22190, MAX22191, MAX22192, and MAX22195, and their features are as follows.

The MAX22190 (5mm x 5mm package) is an 8-channel digital input device that provides SPI (Serial Peripheral Interface), precise input current limiting, built-in surge protection of over 1kV, and wire break detection.

The MAX22191 (2.8mm x 2.9mm package) is a single-channel parasitic power supply digital input device equipped with input current limiting and a propagation delay of up to 250ns.

The MAX22192 (6mm x 10mm package) is an 8-channel digital input device equipped with isolated SPI, open circuit detection, and accurate input current limiting.

The MAX22195 (5mm x 5mm 32-TQFN package) is a high-speed 8-channel digital input device that supports parallel output, accurate input current limiting, propagation delay of up to 300ns, parallel interface, low power consumption, low heat dissipation, internal fault-tolerant diagnostics, configuration settings, and a rugged design.

In addition, the lineup includes: ▲ the 'MAX14912' and 'MAX14913', 8-channel high-speed switch/push-pull drivers with integrated surge protection, diagnostics, and fast, safe device functions; ▲ the 'MAX14914', a general-purpose digital IO with surge protection, a high-side switch/push-pull driver, digital input, and SPI interface; and ▲ a 6-channel high-density, high-speed, low-power digital IO for daisy-chained SPI applications. The 'MAX14483' isolator strengthens the digital IO product family.

Kristin Schuetter, Vice President of Supplier Management for Mouser Electronics’ Semiconductor Business Unit, stated, “The trend toward product miniaturization continues as industrial process control technologies become more decentralized,” adding, “Maxim’s new family of digital input devices is a solution that provides the small size and high performance required across a wide range of automated factory equipment.”

Tim Leung, Managing Director of the Industry and Communications Business Unit at Maxim Integrated, stated, “Maxim is committed to providing a powerful and outstanding family of digital IO devices with the diverse capabilities required for automated manufacturing environments,” adding, “These newly released digital input products will further elevate the level of adaptive manufacturing.”