Analogue / Linear / Mixed Signal ICs

Maxim has introduced a chip to interface devices equipped with I2C or SPI bus connections to its ‘1-wire’ bus. Called DS28E18, it is intended to knock cost out of networks that connecting I2C and SPI sensors to a host by reducing the number of copper wires needed for up to 10 nodes to two wires. Busses over 100m long are ...

Diodes has announced its first precision op-amp, the chopper-stabilised dual AS2333, which has rail-to-rail inputs and outputs and operates over 1.8V to 5.5V (or ±0.9V to ±2.75V) and -40°C to +125°C. Typical figures are 8µV input offset, 0.02µV/°C drift over time and temperature, 120dB common-mode rejection ratio and 130dB open-loop gain. The amplifiers have a bandwidth 350kHz and typically slew ...

Rohm is claiming “industry’s first high-speed op-amp that eliminates oscillation due to load capacitances” for its 10V/μs BD77501G – which is not quite true unless some further caveats are added as, for example, ADI’s ‘C-Load’ op-amps are stable with any capacitance – LT1364 can hit 1,000V/μs. Rohm’s branding for capacitive tolerance is ‘Nano Cap’. BD77501G is a ground sense CMOS op amp ...

Analog Devices has introduced RS-485 and RS-422 transceivers that can withstand 5.7kVrms and ±15kV ESD. “The transceivers’ simplified PCB layout and small form factor pack more functionality into space constrained applications than the previous generation,” said ADI. There will be four products: ADM2867E 25Mbit/s full duplex, separate driver and receiver cable inversions pins ADM2865E 25Mbit/shalf duplex, combined cable inversion pin ...

Analog devices is aiming at industrial control with a four-channel I-O integrated circuit. Control is though a four-wire digital interface to a host controller that clocks at up to 24MHz and is compatible with SPI, QSPI, Microwire and other protocols. Each of the four channels on the other side of the chip can be software-configures as: Voltage input (0-10V, 200kΩ load ...

ADA4523-1 is a precision ‘zero-drift’ op-amp from Analog Devices that works across 4.5V to 36V, drawing 6mA worst case. The output is rail-to-rail, and the input includes the negative rail – working from 100mV below the negative rail to 1.5V below the positive rail. Maximum offset voltage is ±4µV and, due to self-calibrating circuitry, this drifts at only 0.01µV/°C (max ...

Diodes has announced what is says is industry’s first AEC-Q100 grade 3 qualified 10Gbit/s USB-C DisplayPort Alternate (DP-Alt) mode linear re-driver IC. DP-Alt mode allows the transfer of DisplayPort signals through a USB Type-C connector. Called PI3DPX1207Q, the Diodes’ chip supports 8.1Gbit/s DP1.4 and 10Gbit/s USB 3.2 specifications. It is a “transparent, protocol-agnostic re-driver capability for a range of automotive ...

Renesas’ ZSSC3240, announced earlier today, is a sensor signal conditioning chip that provides amplification and 24bit digitisation for bridge and half-bridge resistive sensors, followed by 26bit sensor-specific correction in a maths core that handles auto-zero, span, and 1st and 2nd order temperature compensation from coefficients stored in non-volatile memory. Support circuits to feed the sensor is included, and measurement is ratiometric ...

Renesas has brought out a sensor signal conditioner (SSC) – the ZSSC3240 – for sensor applications such as resistive pressure sensors and medical infrared thermometers features with up to 24 bits ADC resolution. With a flexible sensor front end and a broad range of output interfaces, the ZSSC3240 can be used for nearly all types of resistive and absolute voltage ...

STMicroelectronics has integrated common-mode filters and ESD suppression into automotive data line protectors. “These are the first common-mode filters on the market with automotive-grade qualification and automotive surge compliance guaranteed,” claimed ST. “They are not only produced and qualified according to AEC-Q101 requirements but are also designed and tested against automotive surge specifics such as ISO10605.” The products each protect ...