Analogue / Linear / Mixed Signal ICs

Crystek has brought out an ultra-low phase noise HCMOS VCXO with standby mode, featuring a close-in phase noise of -90dBc/Hz @ 10Hz offset and a typical noise floor of -168dBc/Hz @ 100kHz offset. The CVHD-957 is suitable for applications such as: Digital Audio Broadcasting (DAB) Professional CD audio equipment DACs and ADCs for HD audio. Developed frequencies are: 22.5792 MHz 24.576 ...

Analog Devices has introduced a 55V, low-noise, zero-drift, precision op-amp that includes electro-magnetic interference (EMI) filtering and needs no calibration circuitry. Called ADA4522-2, the dual channel device is the first of a series. Operation is over ±2.25V to ±27.5V, or 4.5 to 55V single supply, with the most negative rail included in the input range. Supply current per amplifier is ...

Crystek has launched the CCPD-575 – an Ultra-Low Phase Noise LVPECL Oscillator providing a -162 dBc/Hz noise floor. The chip’s phase noise is claimed to be 15 dB lower phase noise than most LVPECL oscillators on the market. Close-in phase noise i -90 dBc/Hz for the 100 MHz variant. This overall ultra-low phase noise translates to a typical phase jitter ...

Linear Technology announces the LTC5549, a double-balanced mixer that can operate either as an up-converter or down-converter, with a very wide RF frequency range from 2GHz to 14GHz. The mixer has a linearity of 24.4dBm IIP3 at 9GHz. It is aimed at microwave transmitter and receiver designs with its integrated LO buffer that needs only a 0dBm drive level, effectively eliminating an ...

Crystek has launched an ultra-low phase noise HCMOS voltage-controlled crystal oscillator (VCXO) providing a -150dBc/Hz noise floor. This overall ultra-low phase noise translates to a typical phase jitter of 0.5psec (12kHz to 8 MHz). Packaged in a 9x14mm SMD package, the CVHD-952 is available from 131MHz to 200MHz. Input supply voltage of 3.3Vdc consuming 25 mA of current is required. ...

IDT is selling a digital pre-distortion (DPD) demodulator operating from 3,200MHz to 4,000MHz which enhances the performance of the digital pre-distortion transmitter linearisation path of cellular base stations. With its integrated digital step attenuator (DSA) and single-pole-double-throw switch (SP2T), the F1358 DPD joins two other demodulators—the F1320, operating at 400MHz to 1200MHz, and the F1370, operating at 1,300MHz to 2,900MHz. ...

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. The AD7124-4 has four differential and seven pseudo-differential inputs and the AD7124-8 has eight differential and ...

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 model CVCO55CC-3420-3430 is packaged in the industry-standard 0.5-in. x 0.5-in. SMD package.

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 is an improved version of the earlier UCC27200 and UCC27201 drivers which can withstand -18V ...

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 optimised for rechargeable batteries and achieving an accuracy of 5 ±23 ppm at 25°C. It is ...