Analogue / Linear / Mixed Signal ICs

Toshiba has released an micro-power CMOS operational amplifier, drawing a maximum of 600nA and typically 270nA (1.5V supply, -40 to 105°C). Called TC75S102F, it will run from supplies between 1.5V and 5.5V and is rail-to-rail on both input and output. Unusually for an op-amp, no input excursion outside the rails is allowed at all. “Operational amplifiers have a multitude of uses including ...

Microchip has announced low-power DACs that self-configure at power-up, using internal non-volatile memory instead of host processor intervention. They are DACs with multiple channels, built-in EEPROM, a built-in reference and an I2C interface: MCP47FEBx4 quad channel MCP47FEBx8 octo channel MCP48 parts have similar functions, but with SPI replacing the I2C interface. There are 8bit, 10bit or 12bit parts MCP47FEB0x 8bit ...

Diodes Incorporated has introduced a pair of low-power analogue multiplexers that can operate from 10V to 36V or ±5V to ±18V. Supply current for either device is typically 135μA. PS508 is a bi-directional single-pole eight way switch PS509 is a bi-directional dual-pole four-way switch – suitable for 4:1 switching of differential signals Both work across -40°C to +125°C. “The analogue multiplexers that ...

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 ...