Alpha and Omega Semiconductor has announced a family of active diodes which can reduce the 1.2V forward drop of 600V bridge rectifiers. Branded AlphaZBL, the first two parts are: AOZ7200 in SOT-23 for external mosfets (right) AOZ7270 in DFN 5×7 with internal 600V 190mΩ super-junction mosfet (below) “Both products are self-powered from the AC line and do not require external ...
Analogue and Discretes
650V drivers for mosfet half-bridges
Infineon has used a silicon-on-insulator process to create a pair of fast 650V half-bridge drivers on small-outline packages for its EiceDriver portfolio. 2ED2110 (images below) is a ±2.5A driver in 16pin DSO-16W packaging 2ED2101 (and ..03, ..04, image above) are +290mA -700mA drivers in 8pin DSO-8 packaging The company emphasises transient immunity for all devices: They have “as excellent ruggedness ...
Diodes reveals its first precision op-amp, and it is micro-power
Diodes has entered the precision low-voltage low-power op-amp fray with a dual-channel 8μV(typ) input offset voltage device consuming 12μA quiescent per amplifier. AS2333, as it will be known, uses chopper stabilisation which reduces drift over time and temperature. Update: Diodes automotive-qualified this part in 2022 Operation is across 1.8V to 5.5V and -40°C to +125°C, and it has rail-to-rail inputs (100mV ...
Covid-19 takes its toll in Q2
The latest report from DMASS shows a downturn in the European semiconductor business across Europe in Q2 and directly links the fall of over 20% to the effects of the global pandemic and ensuing lockdown. The report records a fall in sales of 20.7% to €1.82bn in Q2 compared to the first three months of 2020. The fall was feared ...
Functional safety intelligent power switches are fast
STMicroelectronics has introduced fast-starting intelligent power switches for safety-instrumented systems. They are designed to meet IEC 61131-2. “With power-on delay time of less than 60µs, the IPS160HF and IPS161HF satisfy standardised requirements for interface types C and D in Safety Integrity Level (SIL) Class 3 applications,” according to the company. They will drive complex resistive, capacitive and inductive loads with one side ...
A glimpse of the world from an Analogue Integrated Circuit designer’s perspective – Part 1
A veteran of 31 years in the Analogue Integrated Circuit industry, Ash Madni takes a personal look at how rapidly the electronics have evolved over his career from 1985 with 3GHz Bipolar technology to 300GHz FDSOI...
ULVAC PZT piezoelectric sputtering tool advances MEMS manufacturing
ULVAC is shipping PZT piezoelectric thin-film sputtering equipment which advances the development of MEMS devices.
Hifideluxe: Rohm’s super-Fi DAC
At Hifideluxe in Munich next month, Rohm will be pre-viewing an audio DAC claimed to have a 131.6dB signal-to-noise ratio. Called BD34301EKV it is a 32bit, two channel ΣΔ converter with -115dB THD+N, taking inputs as 2.8 / 5.6 / 11.2 / 22.4MHz DSD or 32kHz to 768kHz PCM (pulse-code modulation) – DSD is direct stream digital, a Sony-Philips pulse-density ...
45V zero-drift op-amp includes on-chip EMI reduction for industrial control
Microchip is aiming at factory automation with a ‘zero-drift’ operational amplifier that will run from 45V and includes on-chip EMI (electromagnetic interference) filters. Called MCP6V51, it has a gain-bandwidth product of 2MHz and a self-correcting architecture that provides a maximum offset of ±15µV and ±36nV/°C maximum offset drift. Operating range is 4.5V to 45V, with a maximum quiescent current of ...
Microcontroller secures IoT endpoint devices
Analogue capability and security functions in the Renesas Synergy S1JA microcontroller, target sensor signal acquisition and conditioning to simplify industrial instrumentation, multi-sensory systems and single-phase electrical meters, says RS Components. The low power microcontroller is based on a 48MHz Arm Cortex-M23 processor core with 256kb code flash and 32kb SRAM. There is also an integrated 16-bit ADC, 24-bit sigma-delta ADC, 12-bit DAC, op amps, ...
Electronics Weekly