Showing posts with label ADI. Show all posts
Showing posts with label ADI. Show all posts

Thursday, June 15, 2017

ADI introduces 16-channel 12/16-bit D/A converters

Analog Devices announced a pair of integrated 16-channel digital-to-analogue (D/A) converters designed to significantly reduce the system footprint for wired telecoms systems without affecting performance, specifically with the introduction of the 12-bit AD5767 and 16-bit AD5766 devices targeting coherent optical systems for medium- to long-haul deployments.

Both of the new ICs integrate an array of discrete components to provide the required voltage ranges and additional system functionality in a small footprint. The D/A converters are suitable for applications in optical modules and electro-optical functions such as bias control, including Mach-Zehnder modulator-bias control.

Analog Devices new D/A converters are available in both space-saving 4 x 4 mm WLCSP and a 6 x 6 mm LFCSP packages and provide a range of unipolar or bipolar output voltages from the user-supplied 2.5 V reference, with outputs adjustable down to −20 V or as high as +14 V.

The output buffers can sink or source up to 20 mA, and the D/A converter is able to impose low-frequency dithering on outputs, eliminating the need for external circuitry. In addition, an integrated output multiplexer allows each of the 16 channels to be monitored if required.

The pin- and footprint-compatible AD5766 is functionally identical to the AD5767 device, but offers 16-bit performance for applications that require the higher resolution. The AD5767 and AD5766 products employ a versatile 4-wire serial interface that can operate at clock rates of up to 50 MHz for write mode, and which is compatible with serial peripheral interface (SPI), QSPI, MICROWIRE and DSP interface standards.


Analog Devices' new converters are offered in 4 x 4 mm WLCSP and 6 x 6 mm LFCSP packages, with an operating temperature range of -40 to +105 degrees C, with the AD5766 product sampling now and scheduled to be available in August 2017; the AD5767 product is sampling and available immediately.

Friday, March 31, 2017

ADI acquires OneTree Microdevices

Analog Devices, a supplier of analogue, mixed-signal and digital signal processing semiconductors, has announced the acquisition of Santa Rosa, California-based OneTree Microdevices, a privately-held fabless semiconductor company offering solutions for emerging broadband networks, on undisclosed terms. 

ADI is a major supplier of mixed signal solutions for cable access, ranging from data converters to clocking and control/power conditioning. Through the acquisition of OneTree Microdevices' GaAs and GaN amplifier portfolio, which are designed to offer enhanced linearity, output power and efficiency, ADI will be able to address the complete signal chain for next-generation cable access networks.


OneTree Microdevices focuses on delivering solutions for broadband networks, having developed a range of key components for CATV, including enabling support for DOCSIS 3.1 technology, and FTTH networks. Analog Devices noted that cable operators are adopting next generation architectures such as DOCSIS 3.1 and remote PHY to increase the capacity of their networks, which the acquired OneTree assets will enable it to serve.

Analog Devices recently completed the acquisition of Linear Technology, a designer, manufacturer and supplier of a broad range of analogue integrated circuits for major customers worldwide, for a total of approximately $14.8 billion in cash and stock.

Linear Technology's products are designed to provide the bridge between analogue and digital electronics, with applications in markets including communications, networking, industrial, automotive, computer, instrumentation and consumer. The company's products span power management, data conversion, signal conditioning, RF and interface ICs, subsystems and wireless sensor networks.


Commenting on the acquisition, Greg Henderson, VP, RF and microwave business at Analog Devices, said, "…. with OneTree Microdevices, ADI is positioned to solve the bandwidth and power efficiency challenges facing cable operators in their efforts to increase broadband Internet services for homes and businesses… OneTree’s expertise aligns with ADI's focus on GaN technology and extends its portfolio of RF and microwave signal chain solutions for infrastructure, defence and instrumentation markets".


Monday, May 16, 2016

Analog Devices’ Silicon Switch Targets Cellular Radio RF Front Ends

Analog Devices introduced a high power (44 watts peak) single-pole, double-throw (SPDT) silicon switch designed for cellular radio systems.

The new switch eliminates the need for external components, while reducing power consumption by operating on a single low-voltage supply with extremely low current consumption compared to existing pin-diode-based solutions.

http://www.analog.com/en/products/rf-microwave/rf-switches.html

See also