Renesas has added a 24bit ΣΔ (sigma-delta) ADC to a 48 MHz Arm Cortex-M23 microprocessor, as well as dual-bank code flash for over-the-air firmware updates. “RA2A2 devices offer multiple power structures and voltage detection hardware to realise energy-efficient operation as low as 100µA/MHz in active mode, and 0.40µA in software stand-by mode,” according to the company. “An independent power supply ...
Abaco Systems latest analogue front-end mezzanine card for FPGAs has been tailored for software defined radio, as well as electronic warfare, radar, test and measurement. FMC300, as it will be known, has 7GHz of usable analogue bandwidth, claims the company, with multiple channels offering up to 12bit 6Gsample/s ADC and up to 16bit 12Gsample/s DAC through a JESD204B/C interface. Data ...
International Solid-State Circuits Conference in San Francisco always seems to make space for audio amplifier developments, and this year is no exception, with some extraordinary distortion and noise figures from Class-D amplifiers, plus a sophisticated Class-H scheme to improve headphone amplifier efficiency. Starting with that headphone amplifier: Class-H is a way to decrease the dissipation of an analogue output stage ...
Renesas has revamped the high-accuracy analogue front-end in its 32bit RX microcontrollers. Implemented in RX23E-B MCUs, the 24bit ΔΣ ADC, depending on configuration, can now convert at up to 125ksample/s – eight times faster than existing RX23E-A MCUs – or achieve a third of the noise – to 0.18µVrms at 1ksample/s. 24bit effective resolution can be achieved at 3.8sample/s. To go ...
Designed for work in circuits with varied voltage levels. Until recently, a very common problem faced by electronic circuit designers was the difference in supply voltage standards between microcontrollers (e.g. 3.3 V) and peripheral ICs (e.g. 5 V). In order for them to operate together, the use of additional voltage translators was required, which made the device more complicated and ...
Unleash the Power of Innovation with Industrial Semiconductors from Profusion Ltd. Profusion Ltd is a specialist semiconductor distributor that has supplied the audio industry for nearly 35 years, forging close ties with global partners who design and manufacture a wide range of state-of-the-art components. Many of these parts have a much broader application base than audio, with considerable potential for ...
GaGe has filled out its line of PCIe digitiser boards – essentially ADCs for PCs – with three new dual-channel models: one with with 250MHz bandwidth and 14bit 500Msample/s sampling, and two 125MHz 250Msample/s models, one with 16bit resolution and the other 14bit. The “digitisers boast ENOB [effective number of bits] of ~11+ typical”, according to the company. Inputs are ...
Danish company Vind-Vind is developing a turbulence model for the effect of wind on structures in complex environments. It will eventually include the atmosphere high above the volume of interest with wind gusts from different directions. As such, said Vind-Vind CEO Per Jørgensen, wind-tunnel measurements are not good enough and he needed real-world measurements throughout a large volume of atmosphere ...
Texas Instruments has created a series of precision current monitors with digital outputs, for use across power rails from -100mV to +85V, at up to ±78.64A. In each case, an internal ΣΔ ADC measures current across an integrated sensing resistor, as well as voltage and temperature – communication with the host if via I2C. The ICs need a separate supply ...
The value of processing in real-time control systems is misunderstood but undeniable, says Meghana Manavazhi, of Texas Instruments. There are misconceptions around the role of processing in real-time control systems. It is easy, for example, to assume that it is tied only to the core CPU or MIPS, focusing purely on data crunching. Growing energy use – especially in grid ...
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