Supporting point-of-load (POL) supplies from industrial 24V DC and 24V AC rectified sources, the XR75100 synchronous step-down controller has been introduced by Exar. This 40V switching controller delivers core voltage rails for ASICs, FPGAs, DSPs and other various processors in medical, automotive, instrumentation and a variety of other industrial markets.

The introduction of the XR71211 signals an expansion of Exar's existing range of LDO regulators. Targeted at 1.5V to 1.2V and 1.8V to 1.5V conversions, the device delivers 1.5A from voltages as low as 1.4V and has a guaranteed dropout voltage of 250mV at maximum junction temperature. The regulator is targeted at a wide range of markets including communications, enterprise solutions, industrial systems and space constrained con...

Through a wholly owned subsidiary, Exar has signed a definitive agreement to acquire Integrated Memory Logic (iML). Exar's subsidiary will commence a tender offer to acquire all of the outstanding shares of iML for $91.00 (TWD) (approximately $3.00 (USD)) per iML share in cash and acquire any remaining shares at $91.00 (TWD) per share pursuant to a follow-on merger.

Extending the company's range of telecommunications timing products, Exar has introduced the XR811xx series of Universal Clocks. Designed for communications, audio/video and industrial applications, the devices feature a variety of output frequencies from 10MHz to 1.5GHz, with ultra-low phase noise jitter of less than 200fs.

With the aim of strategically streamlining product development and enhancing focus on high-value growth opportunities, Exar have announced a series of oraganisational changes and expansion of executive responsibilities.

Adding to the existing PowerBlox family of DC-DC converter products, Exar have introduced the XR76108, XR76112 and XR76115 synchronous step down regulators. Supporting POL supplies of 8A, 12A and 15A, respectively, the devices deliver core voltage rails for ASICs, FPGAs, DSPs and Network Processors in communications, networking and industrial markets.

Optimised to operate over a wide 2.8-5.5V supply voltage range, the XR3303x family of half duplex RS-485 transceivers have been announced by Exar. The devices enable system designers to increase the reliability of isolated industrial networks, remote meter reading, process control and monitoring, GSM/GPRS modules, building automation, HVAC control and security systems.

Able to be programmed to meet the needs of nearly all systems, the XRP7720 quad-output, synchronous step-down, universal PMIC has been introduced by Exar. In development, an I2C interface allows Exar’s PowerArchitect design and configuration software to quickly optimise the power system performance.

The XRP7725, a quad-output, synchronous step-down, programmable PMIC, has been lauched by Exar. Compatible with the Intel Node Manager energy monitoring, the monitoring is improved over what can be accomplished through a limited I2C interface by sampling and accumulating the current on each of the 4 outputs every millisecond.

Supporting RS-232, RS-485 and RS-422 serial standards, the SP335 advanced multiprotocol transceiver has been announced by Exar. The rugged devices are suitable for use in software programmable serial ports for industrial PCs and single board computers, process control, point-of-sale, embedded systems, HVAC controls, building automation networking and security systems.

Designed for the Intel LPC motherboard bus, the XR28V382 and XR28V384 UARTs have been announced by Exar. The UARTs reduce footprint while increasing data integrity and throughput by providing 28B FIFOs.  

Supporting POL supplies up to 35A, the XRP6141 Synchronous Step Down Controller signals an expansion of Exar's line of DC-DC power conversion products. The controller is designed to achieve excellent transient response and output accuracy using the company's proprietary emulated current mode COT control loop.

Claiming to be the world's lowest voltage single supply LDOs, Exar's XRP6274 and XRP6275 regulators support 2A and 3A loads from a single low voltage supply with a maximum dropout voltage of 140mV. The regulators operate voltage rails of 1.1V to 2.5V, providing a single supply solution for convenient point-of-load voltage regulation. 

Claiming to offer the industry’s highest power density and lowest profile, the XRP9710 and XRP9711 power modules have been introduced by Exar. The multi-output, synchronous step-down, programmable power devices boast a 2.75mm profile with 5V-22V inputs.

An analogue front-end suitable for blood pressure monitoring systems provides affordable accuracy in an increasingly cost-conscious use-case. Debbie Brandenburg, Product Marketing Manager, High Performance Analog Products, Exar, discusses more in this ES Design magazine article.

Exar have introduced a new series of ruggedized RS-485/RS-422 transceivers, the XR3070-78X family. Suited for harsh industrial environments, these devices consume half the power of a comparable ±18V fault tolerant solution, operating from 3.3V with an industry-leading 300μA idle current. The analog bus pins can withstand direct shorts up to ±18V and are protected from ESD events exceeding IEC Level 4.

Exar announce pin compatible replacements for the 110MHz Analog Devices AD8051, AD8052 and 150MHz AD8054 single, dual and quad (respectively) operational amplifiers. The XR805x family of high-speed operational amplifiers is intended for applications including video distribution and surveillance systems to achieve optimal performance and lower overall system power consumption.

While the RS-232, RS-422, and RS-485 serial standards are hardly new, combining them over a single connector creates challenges unforeseen when these standards were first drafted years ago. Jack Roan, Product Marketing Manager for Connectivity products at Exar, explores solutions in this article from ES Design magazine.

This video provides a quick product overview of the XRP7724 Evaluation Board from Exar.

Cadeka Microcircuits have been acquired by Exar Corporation for $29.0 million, with initial consideration to be paid in a combination of cash and stock, and an earn-out against net revenues contributed by Cadeka. Cadeka designs, develops and markets precision analog integrated circuits for use in industrial and high reliability applications in Loveland, Colorado and both Shenzhen and Wuxi, China.