Tag Archives: analog

Nexperia has unveiled analogue switches that can work with control logic from 1.8 to 5V, regardless of supplies between 1.5 and 5.5V. There are two versions: NMUX1308, an 8:1 analogue multiplexer/demultiplexer which is compatible with, but more capable than, existing 4851 and 4051 analogue switches, and the NMUX1309 dual 4:1 analogue mux/demux which can replace 4852 and 4052 devices. All ...

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 ...

Triad Semiconductor has created Triad Micro Devices (TMD), a wholly-owned fab-less semiconductor division dedicated to developing analogue and mixed-signal integrated circuits for aerospace and defence use. “Having participated in the aerospace and defense industry for numerous years, Triad takes the next strategic leap by establishing TMD as a dedicated center for high-performance high-reliability integrated circuit development,” said TMD CTO Jim ...

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 ...

Texas Instruments has announced a 220V (or ±110V) analogue switch with 16 channel of single-throw switching. It has logic-level (1.8 to 5V) control inputs, with thresholds set by the separate 1.7 to 5.5V logic supply, and needs at least 40V across its switch supply pins (0V and +40V, or ±20V, for example) to operate. Absolute max for the controlled signal ...

Texas Instruments has added an analogue version of the non-optical replacement for digital opto-isolators it just revealed. Called ‘opto-emulators’, both analogue and digital versions replace the LED and photo-diode or photo-transistor within a conventional opto-isolator with an SiO2 barrier across which the a modulated version of the input signal is passed – probably magnetically (Electronics Weekly has requested clarification). The ...

Texas Instruments is previewing a 50V quad-channel single-pole analogue switch with a wide voltage range, low on-resistance and consistent on-resistance with signal amplitude. Called TMUX7612 and made on a CMOS process, it will run on single rails between 4.5 and 50V, dual rails from ±4.5 to ±25V, and asymmetric rails – the company gave 37.5Vdd and -12.5Vss as an example, ...

IBM has revealed an analogue in-memory IC for implementing neural networks. The device stores weights locally as analogue levels as conductance in phase-change memory, and implements analogue multiply-accumulate calculation. For analogue AI processing “two key challenges need to be overcome: These memory arrays need to compute with precision on par with existing digital systems, and they need to be able ...

Diodes has created a high-speed double-pole double-throw analogue switch that can be used as a multiplexer or de-multiplexer at over 5GHz. To be known as PSMUX136, it supports a supply of 1.8 to 5.5V, and from 0 to 3.6V on the analogue ports. Control pins are compatible with 1.8V logic. The device has two single-pole double throw switches, A and ...

Mixed-signal chip maker X-Fab Silicon Foundries is X-Fab offering a 110nm BCD-on-SoI process, claiming to be the first to do so. Called XT011, it “reflects the need for greater digital integration and processing capabilities within analogue applications”, said X-Fab, claiming: “It brings together the appealing attributes associated with both SoI and DTI [deep trench isolation], so that high-density digital logic ...