Mixed Signal/Analog

Suitable for mil/aero COTS applications, the sMV500 high power density COTS ADC has been introduced by Astrodyne. The 500W device, which expands the company’s Super MegaVerter series, utilises an IMS metal baseplate, planar transformers and surface mount construction to provide maximum power density and performance. 

Generating and distributing the low jitter signals essential to clocking data converters with a high SNR, Linear has announced a low phase noise integer-N synthesiser core with an ultralow jitter clock distribution output section. The LTC6950 integrates a PLL which offers a normalised in-band phase noise floor of -226dBc/Hz and exceptionally low -274dBc/Hz normalised 1/f phase noise which stays intact going through the clock distribution section.

Silicon Labs has introduced a next-gen digital TV demodulator family, offering expanded support for the latest satellite, terrestrial and cable standards. The Si218x family includes the world’s first demodulators which support the recently launched DVB-S2X specification, which adds features and higher performance to the DVB-S2 standard.

A smart amplifier for smartphone audio systems, claimed to be smallest smart-amplifier solution, has been introduced by NXP Semiconductors. The TFA9897, which is the company’s 3rd gen smart amplifier, is suitable for all smartphones. The amplifier features the latest version of NXP’s algorithm, which is embedded in a system optimised for 8Ω micro-speakers. 

Featuring extended frequency response and wide directivity, the TEBM130H rectangular BMR driver has been released by Tectonic. The driver, which is based on the company’s patented technology, is suitable for audio applications that require a full-range, high performance speaker, in a compact, slim-line form factor.

Providing 5V operation for improved noise immunity and robustness, Microchip has introduced a family of 16-bit dsPIC33 DSCs (Digital Signal Controllers). The dsPIC33EV family is suited for applications in the appliance, industrial and automotive markets, such as refrigerators, dishwashers, range hoods, control panels, power tools, actuators, building controls, HVAC systems, sensors, user interface, fuel pumps, cooling fans and water pumps.

Most high-speed ADCs use a differential input structure. This provides good common-mode noise rejection, but often requires a single-ended signal to be converted into a differential signal at the ADC input. A passive balun or transformer and an active amplifier are the main choices for the conversion process. By Ian Beavers, Analog Devices.

The MCP3919 and MCP3912 are the latest members of Microchip Technology's high-accuracy, one to eight channel, single- and poly-phase MCP391X energy-measurement AFE family. The additions integrate three and four channels of 24-bit, delta-sigma ADC with claimed industry-leading accuracy of 93.5dB SINAD, -107dB THD and 112dB SFDR for precise signal acquisition and high-performance.

Utilising the company’s patent pending Sampled Analog Technology (SAT), the ADA2200 synchronous demodulator has been introduced by Analog Devices. Enabling designers of portable and low-power instrumentation to maximise battery life, the device features a configurable analogue filter. The filter also allows designers to perform precision magnitude and phase measurements on analogue signals in the presence of large noise sources.

Mouser Electronics is now shipping the AD9135 and AD9136 digital to analog converters (DACs) from Analog Devices. The AD9135 is an 11‑bit DAC, while the AD9136 is a 16‑bit DAC. These devices boast a high dynamic range and a fast sampling rate of 2.8 Giga-samples per second (Gsps).