Analogue & Linear ICs News

ADI integrates 24-bit sigma-delta converters into sensor interface chip

Analog Devices has integrated 24-bit sigma-delta converters into analogue front end devices with up to eight differential inputs. The AD7124-4 and AD7124-8 are integrated signal chain devices with a programmable gain amplifier, precision reference, reference buffers, current sources, temperature sensor and excitation sources all on-chip…

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Crystek VCO operates from 3420-3430MHz

Crystek’s CVCO55CC-3420-3430 VCO operates from 3420 MHz to 3430 MHz with a control voltage range of 0.5 V~4.5 V. This VCO features a typical phase noise of -110 dBc/Hz @ 10KHz offset and has excellent linearity. Output power is typically +2.0 dBm. The…

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Fast 120V half-bridge driver for automotive

Texas Instruments is claiming a half-bridge driver speed record with a 120V automotive-grade half-bridge gate driver with 15ns propagation delay and delay matching of 1ns for 12V to 48V dc-dc supplies. Rise and fall times of the UCC27201A-Q1, as it is known, are 7ns. It…

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Real-time clocks integrate a power switch for battery use

Epson’s RX8130CE and RX8900CE real-time clocks (RTCs) are available from distributor Rutronik. Both new modules are available in 3.2 x 2.5 x 1.0mm packages and include an IC and crystal. The RX8130CE is designed for low power and has a built-in power switch function…

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Linear DAC has spectral purity for broadband wireless

Linear Technology’s LTC2000A is a 16-bit, 2.7Gsample/s digital-to-analogue converter (DAC) with a spectral purity for broadband wired-and-wireless communications and radar applications. The chip’s spectral purity is 80dBc SFDR at 50MHz output and 72dBc SFDR at 1080MHz output. The device features better…

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Ricoh IC gives lithium-ion cell discharge protection

Ricoh has introduced a battery protection IC for rechargeable one-cell lithium-ion and lithium polymer batteries which incorporates a two-step excess discharge current detector, used with an external current sense resistor. The R5486 monitors the charge and discharge process continuously and intervenes when the process is at risk…

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1-26MHz MEMS oscillator challenges quartz on all fronts

Called SiT8021, power consumption is 110µA for 3MHz, and the device is available in chip-scale packages (CSPs) as small as 1.5×0.8mm. The MEMS part is a 524kHz double tuning fork resonator (see diagram), identical to the one in a similar 32kHz oscillator released three months ago…

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TI has motor control platform with Ethernet comms

Texas Instruments has introduced a hardware and software kit for industrial drive and servo design with support for real-time Ethernet communications and functional safety topologies. Based on the real-time control architecture of TI’s C2000 microcontrollers, DesignDRIVE  design kit can be used for the development of industrial inverter…

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