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Nouvelles Technologies

Dossiers 4 647
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Technology Cover

2023-03-10, Low Noise,12-Bit, 25Msps ADC

The LTC1745 is a 25Msps, sampling 12-bit A/D converter designed for digitizing high frequency, wide dynamic range signals. Pin selectable input ranges of ±1V and ±1.6V along with a resistor programmable mode allow the LTC1745’s input range to be optimized for a wide variety of applications.

Technology Cover

2023-03-10, Micropower, 2-channel, 125 ksps, serial output 12-bit SAR ADC

The TSA7887 is a stand-alone, 2-channel, high-speed, micro-power, 12-bit analog-to-digital converter (ADC) capable of powering from a single +2.7V to +5.25V power supply. The TSA7887 has a throughput rate of 125 ksps and an external 2MHz serial clock, and obtains a supply current of 0.85mA. The TSA7887 is fully specified from -40ºC to +125ºC and is available in 8-pin SOIC and MSOP packages

Technology Cover

2023-03-10, Positive voltage regulator with low step-down and low noise output

The SPX3819 is a positive voltage regulator with low step-down and low noise output. In addition, the device provides a very low 800μA ground current at 100mA output. The SPX3819 is an excellent choice for battery powered applications such as cordless phones, radio control systems and portable computers. It has several fixed output voltage options or adjustable output voltage. The device is offered in 8-pin NSOIC, 8-pin DFN and 5-pin SOT-23 packages.

Technology Cover

2023-03-10, Texas Instruments adjustable micro power regulator

LP2950-N and LP2951-N are micro-power regulators with very low static current (typical 75µA) and very low step-down (typical 40 mV for light loads and 380 mV at 100 mA). They are ideal for use in battery powered systems. In addition, the static current of the device increases only slightly at dropout, extending battery life

Technology Cover

2023-03-09, Texas Instruments offers complete, easy to use DC-DC solutions

The LMZ10503EXT Power module is a complete, easy-to-use DC-DC solution capable of driving up to 3-A loads, with outstanding power conversion efficiency, output voltage accuracy, line and load regulation. It is a reliable and powerful solution with the following features: lossless period peak current limitation to protect against overcurrent or short circuit faults, thermal shutdown, input undervoltage locking, and pre-biased start. WEBENCH and Power Designer tools are also fully supported

Technology Cover

2023-03-09, Vishay Semiconductor optocoupler, optical thyristor output, zero crossover, very low input current

IL4116, IL4117 and IL4118 consist of AlGaAs IRLED optically coupled to a photosensitive zero-cross thyristor network. The thyristor consists of two monolithic thyristors in parallel in reverse. The three semiconductor devices are assembled in a six-pin 300 mil dual-in-line package. It also separates low-voltage logic from 120 VAC, 240 VAC and 380 VAC lines to control resistive, inductive or capacitive loads including motors, solenoids, high-current thyristors or thyristors and relays. Applications include solid-state relays, industrial controls, office equipment, and consumer appliances.

Technology Cover

2023-03-09, High linearity wideband dual-channel down-conversion mixer

HMC1190ALP6NE is a high-linearity broadband dual-channel down-conversion mixer, which integrates phase-locked loop and voltage-controlled oscillator, and is optimized for multi-standard receiver applications requiring compact and low-power design. The compact 6x6mm lead-free QFN package conforming to RoHS standard is adopted. The integrated broadband limited LO amplifier enables the mixer to achieve unprecedented RF bandwidth of 700 MHz to 3800 MHz, which is suitable for cellular/3G, LTE/WiMAX/4G and other applications.

Technology Cover

2023-03-09, Accurate digital thermometer from Analog Devices

The MAX6690 is an accurate digital thermometer that reports the temperature of the remote P-N junction and its own mold. Using a small 16-pin QSOP surface-mount package, the remote junction can be a diode-connected transistor -- usually a low cost, easy to install 2N3904 NPN type or 2N3906 PNP type -- in place of a traditional thermistor or thermocouple. The default low temperature measurement limit is 0 ° C. This can be extended to -64°C by setting bit 5 of the configuration register to 1.

Technology Cover

2023-03-09, High-performance CPLDS provide advanced in-system programming and testing capabilities for General logic integration

The XC95108 is a high-performance CPLD that provides advanced in-system programming and testing capabilities for general-purpose logic integration. It consists of eight 36V18 functional modules that provide 2,400 usable gates with a propagation delay of 7.5 ns.

Technology Cover

2023-03-09, Low power differential bus/line transceiver

The LTC1485 is a low-power differential bus/line transceiver designed for standard RS485 applications for multipoint data transmission with an extended common model range (12V to -7V). At the same time meet the requirements of RS422. CMOS using Schottky's design offers significant power savings compared to bipolar CMOS without sacrificing robustness against overload or ESD damage. Both AC and DC specifications are guaranteed in the supply voltage range of -40°C to 85°C and 4.75V to 5.25V.

Technology Cover

2023-03-08, High precision wide power supply high output drive low noise reference

The LT6654 is a family of small precision voltage references that offers high accuracy, low noise, low drift, low dropout and low power. The LT6654 operates from voltages up to 36V and is fully specified from –55°C to 125°C. A buffered output ensures ±10mA of output drive with low output impedance and precise load regulation. These features, in combination, make the LT6654 ideal for portable equipment, industrial sensing and control, and automotive applications.

Technology Cover

2023-03-08, High performance, high reliability CMOS technology manufacturing

IDT6116SA/LA is a 16384-bit high-speed static RAM with a structure of 2K x 8. It is packaged with 24-pin 600 and 300 mil plastic or ceramic DIP, 24-pin gull-wing SOIC and 24-pin j-bend SOJ, providing high board-level packaging density. Military grade products meet the latest version of MIL-STD-883, Grade B, which makes them very suitable for military temperature applications requiring the highest performance and reliability.

Technology Cover

2023-03-08, Maxim Integrated introduces the dual channel buffer

The MAX4951BE dual-channel buffer is ideal for re-driving serial ATA (SATA) I, SATA II, and SATA III signals, and has high electrostatic discharge (ESD) Q8kV Mannequin (HBM) protection. The MAX4951BE is powered by a single +3.3V(typical) power supply and can flow through traces in a small, 4mm x 4mm TQFN package for easy layout. The operating temperature range of the equipment is 0NC to +70NC.

Technology Cover

2023-03-08, Texas Instruments railroad automatic distribution switch

The TPS201xA family of power distribution switches is intended for applications where heavy capacitive loads and short circuits are likely to be encountered. These devices are 50-mΩ N-channel MOSFET high-side power switches. The switch is controlled by a logic enable compatible with 5-V logic and 3-V logic. Gate drive is provided by an internal charge pump designed to control the power-switch rise times and fall times to minimize current surges during switching. The charge pump requires no external components and allows operation from supplies as low as 2.7 V.

Technology Cover

2023-03-07, High efficiency, high voltage 100mA synchronous step-down converter

The LTC3631 is a high voltage, high efficiency step-down DC/DC converter with internal high side and synchronous power switches that draws only 12μA typical DC supply current at no load while maintaining output voltage regulation.

Technology Cover

2023-03-07, PWM controller with 1A drive current capability

The MIC38HC4x family are fixed frequency current-mode PWM controllers with 1A drive current capability. Micrel’s BiCMOS devices are pin-compatible with 384x bipolar devices. Their high output drive, with fast rise and fall times, combined with low startup current make it an ideal PWM controller where high efficiency is required

Technology Cover

2023-03-07, Step-down, PWM control or PWM/PFM toggable switch regulator controller

The S-8520/8521 Series is a CMOS step-down switching regulator-controller with PWM control (S-8520 Series) and PWM / PFM switching control (S-8521 Series). The S-8520/8521 Series has a reference voltage source, an oscillation circuit, an error amplifier, and other components

Technology Cover

2023-03-07, Texas Instruments High speed synchronous step-down regulator controller

The LM2743 is a high-speed synchronous buck regulator controller with an accurate feedback voltage accuracy of ±2%. It can provide simple down conversion to output voltages as low as 0.6 V. Though the control sections of the IC are rated for 3 V to 6 V, the driver sections are designed to accept input supply rails as high as 16 V. The use of adaptive non-overlapping MOSFET gate drivers helps avoid potential shoot-through problems while maintaining high efficiency.