Industrial equipment designers striving to meet the size, power, and performance requirements of Industry 4.0 applications can now turn to an expanded family of digital input devices from Maxim Integrated Products, Inc.One of the new devices, the MAX22192, is integrated into the reference design of the company's Go-IO programmable logic controller (PLC), also announced today.
As manufacturing becomes increasingly automated, there is a growing need for real-time feedback and decision-making mechanisms. These intelligent Industry 4.0 systems require integrated digital input circuits within PLCs to receive on/off status signals. However, to facilitate integration into manufacturing environments, the devices must be robust, high-performance, and compact.
Maxim's broad portfolio of IEC61131-2 compliant digital input devices offers the industry's smallest solution size (up to 50% reduction), the lowest power dissipation (up to 60% reduction), is up to 6 times faster, and has the most robust operation (integrating 1kV surge protection and built-in diagnostics). Furthermore, the family also includes a parasitic-powered digital input that reduces power dissipation by up to 60 percent and does not require a discrete, isolated power supply.
The latest digital input devices include:
• MAX22190 8-channel octal digital input with Serial Peripheral Interface (SPI), precise input current limiters, built-in surge protection of >1kV, and broken connection detection in a 5mm x 5mm package
• MAX22191 single-channel digital input with parasitic feed, precise input current limiters, and a propagation delay of 250 ns (max) in a 2.8mm x 2.9mm package
• MAX22192 8-channel octal digital input with isolated SPI, broken connection detection, and precise input current limiters in a 6mm x 10mm package
• MAX22195 high-speed octal digital input with parallel output, precise input current limiters, 300 ns (max) propagation delay, parallel interface, low power consumption, low heat dissipation, and fault tolerance with built-in diagnostics, configurability and a robust design in a 5 mm x 5 mm 32-TQFN package
These products enhance a family of digital I/O that also includes the octal high-speed controllers, push-pull switches/drivers. The MAX14912 and MAX14913 feature integrated overload protection, diagnostics, and fast, safe degaussing; the MAX14914 is a universal digital I/O with surge protection, a high-branch switch/push-pull driver/digital input, and an SPI interface; and the MAX14483 is a high-density, high-speed, 6-channel, low-power digital isolator optimized for daisy-chained SPI applications.
Key Advantages
• Smaller Solution Size: Adds robust functionality to the PLC in a footprint 50% smaller than comparable solutions, empowering adaptive manufacturing.
• Reduced Power Dissipation: A parasitically powered digital input reduces power dissipation by up to 60% and does not require a discrete, isolated power supply.
• More Robust Operation: All components in the family have onboard diagnostics, while individual components offer performance-enhancing features including:
◦ Built-in >1 kV surge protection for increased system robustness and elimination of eight external transient voltage suppressor (TVS) diodes.
◦ Extensive diagnostics, such as open connection and break-connect detection, to increase uptime on the factory floor.
• High Speed:
◦ Digital inputs 6 times faster than industry alternatives.
Comments
“As industrial process control technology becomes increasingly decentralized and miniaturized, Mouser customers are looking for the best power control options. Maxim’s new family of digital inputs provides the small size and high performance needed across a wide range of automated factory equipment,” says Kristin Schuetter, vice president of semiconductor supplier management at Mouser Electronics.
“Maxim is committed to providing a superior and robust family of digital I/O devices with a wide variety to meet the diverse demands of automated manufacturing environments. The latest digital input products are poised to help take adaptive manufacturing to the next level,” says Tim Leung, director of business management for the Industrial Communications Business Unit at Maxim Integrated.
Availability and Pricing
• The MAX22190, MAX22191, MAX22192, and MAX22195 models are available on the Maxim website for $2.73, $0.57, $5.22, and $2.20, respectively (minimum order of 1,000 units, FOB USA). They are also available through authorized distributors.
• The evaluation kit prices are as follows: MAX22190EVKIT# for $72.00, MAX22191EVKIT# for $43.00, MAX22192EVKIT# for $72.00, and MAX22195EVKIT# for $72.00.
• IBIS models are available for newer products.
