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Tag Archives: adc

5v analogue front ends with ΣΔ ADCs and sensor interfacing

Nisshinbo NA220x analogue front end block

Nisshinbo Micro Devices has released a series of industrial 5V analogue front end ICs with high-resolution ΣΔ converters, input multiplexers, programmable gain amplifiers and sensor excitation current sources. NA2202 has 16bit resolution NA2203 has 20bit resolution NA2204 has 24bit resolution “Microcontrollers with 5V operating voltage are still widely used in the industrial equipment market, according to the company. “In order ...

VLSI Symposium: RF ADCs cover 5GHz

Imec VLSI-ADC

At the IEEE VLSI Symposium this week, Imec revealed two ADCs for 5GHz ‘beyond 5G’ communication, one for base stations and one for phones. The base station ADC operates over bands up to 5GHz. It is a 10Gsample/s cmos hierarchical time-interleaved ADC that delivers 9 ENOB (effective number of bits) at low frequencies and 8.2 ENOB at Nyquist. SFDR (spurious-free ...

High analogue accuracy automotive MCU survives 42V

Infineon PSoC 4 HVPA-144K automotive mcu

Infineon has introduced microcontrollers for monitoring vehicle Pb-acid batteries, that can be powered directly from the battery and include a pair of high-accuracy ADCs. Operation is over 3.6 to 28V, with reduced function up to 42V, and the drvices have been developed with functional safety in mind. “The device is developed compliant to ISO 26262, meeting all process requirements for ...

Cortex-M23 MCU gets 24bit ΣΔ ADC and firmware over-the-air

Renesas RA2A2 mcu block

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 ...

7GHz ADC-DAC card honed for FPGA software-defined radio

Abaco FMC300 analogue front end card

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 ...

ISSCC: Audio amplifiers and ADCS

ISSCC24 paper21.4 Mediatek headphone amplifier block loRes

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 ups 24bit ADC performance in 32bit MCU

Renesas RX23E-B precision analogue MCU sensor application

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 ...

Sponsored Content: AVR® DB and AVR® DD families of microcontrollers

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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 ...

Sponsored Content: Cutting-edge Semiconductors

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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 ...

Two-channel 16bit 125Msample/s PCIe digitiser board

GaGe-Digitizer-Razor-Express PCIe card

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 ...