New products from Linear

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Industry Update

New Products

65V, 8A (IOUT), Synchronous Step-Down Silent Switcher 2 Delivers 94% Efficiency at 2MHz & Ultralow EMI/EMC Emissions

The LT8645S is an 8A, 65V input capable synchronous step-down switching regulator. Its unique Silent Switcher 2 architecture uses two internal input capacitors and internal BST and INTVCC capacitors to minimize the area of the hot loops. It dramatically reduces EMI/EMC emissions and can easily pass the automotive CISPR 25, Class 5 peak EMI limits with a 2MHz switching frequency over its entire load range. Data Sheet

Ultra-Wideband 3GHz to 20GHz Mixer with Integrated LO Buffer Offers 23.9dBm IIP3

The LTC5553 is a double balanced mixer providing best-in-class matched bandwidth capability from 3GHz to 20GHz. It can be used either as an up- or downconverter and delivers outstanding linearity of 23.9dBm IIP3 at 14GHz, and 21.5dBm at 17GHz. It integrates an LO buffer requiring only 0dBm input drive, effectively eliminating an external high power LO amplifier circuit. Data Sheet

32-Bit SAR ADC with 0.5ppm Linearity Provides 148dB Dynamic Range

The LTC2500-32 is an ultrahigh precision 32-bit SAR ADC. Its low noise density produces 148dB of dynamic range at 61sps and 104dB at 1Msps. It offers unrivaled linearity of 0.5ppm typical and 2ppm guaranteed maximum INL, and negligibly low gain and offset drift over wide temperature ranges, enabling high precision measurements in noisy environments, such as in industrial automation. Data Sheet

60V, 3A Silent Switcher µModule Regulator is CISPR 22 Class B Compliant

The LTM8073 is a µModule step-down regulator with up to 60V input voltage range (65V abs max). It operates over 24V to 48V input supplies in noisy environments such as communication infrastructure, factory automation, industrial robotics and avionics systems. Its Silent Switcher architecture minimizes EMC/EMI emissions, enabling it to pass CISPR 22 Class B. Data Sheet

Videos

100V, Bidirectional Multiphase Synchronous Buck or Boost Controller

A newly proposed automotive standard, LV148, combines a secondary 48V bus with the current 12V system. These systems require a bidirectional high current DC/DC controller such as the LTC3871 to step-down or step-up the voltage between the 12V and 48V batteries in dual battery automotive applications. The LTC3871 is a 100V/30V bidirectional two-phase synchronous buck or boost controller. Watch Video

Anyside Isolated Switch Controller with I²C Command and Telemetry

Hot swap integrated circuits are used to limit inrush current in low-side or high-side DC applications. The LTM9100 allows control of inrush current in low-side and high-side applications operating up to 1000VDC. It provides an integrated isolated hot swap control and communication interface with isolated power. The isolation barrier eliminates operating voltage limitations, while providing flexible configuration. Watch Video

Buffered Octal ADC Inputs Simplify Sensor Interfaces

Systems using a precision ADC to digitize signals need signal conditioning circuitry between the signal source and the ADC. The LTC2358 octal ADC adds FET-input analog buffers, allowing signal conditioning to be designed around the needs of the signal, rather than around the ADC. The picoamp inputs can be directly connected to low-current sensors. Watch Video

Design Notes

60V Low IQ, Dual Output Synchronous Step-Down Controller with Adjustable Gate Drive

The LTC3892 is a versatile 60V input, dual output buck controller, optimized for high efficiency DC/DC solutions in automotive, industrial and telecom fields. Other salient features include programmable gate voltage, extremely low no-load and shutdown quiescent current, programmable frequency, internal bootstrap diodes and easy current sharing for high current designs. Download Design Note

Low EMI LED Driver Features 2A, 40V, Integrated, Synchronous Switches for Automotive Lighting

The breadth of LED applications has expanded from general lighting to automotive, industrial and test equipment, sign boards and safety instruments. Feature requirements for LED drivers have become more extensive. The LT3922 synchronous LED driver with integrated 2A, 40V switches can be configured as a boost, buck or boost-buck LED driver to meet these demands. Download Design Note

Low Power Op Amp: Low Power Filter, Headphone Driver Revisited

A family of op amps features industry leading speed versus supply current. The LTC6261/6262/6263 family (single, dual, quad) provides 30MHz at a low 240µA supply current, with 400µV maximum offset voltage and rail-to-rail input and output. In combination with 1.8V to 5.25V supply, these op amps enable applications requiring uncompromised performance with low power and low voltage. Download Design Note

Product Highlights

42V, 6A (IOUT), Sync Step-Down Silent Switcher 2 Delivers 95% Efficiency at 2MHz & Ultralow EMI/EMC

The LT8640S 6A, 42V input synchronous step-down switching regulator has a unique Silent Switcher 2 architecture that minimizes the area of the hot loops. Its improved EMI/EMC performance is not sensitive to board layout, simplifying design. It can easily pass the automotive CISPR 25, Class 5 peak EMI limits with a 2MHz switching frequency over its entire load range. Read More »

Dual Differential Amplifier/ADC Driver Delivers 10GHz Gain Bandwidth with 1.1nV/√Hz Noise

The LTC6419 is a dual 10GHz gain bandwidth product differential amplifier with low input voltage noise density of 1.1nV/√Hz, delivering outstanding SNR performance for wideband signal amplification. Its low distortion provides 85dB SFDR at 100MHz while driving 2VP-P signals. Applications include high speed data acquisition systems, test instrumentation, high resolution radar systems, advanced image sensors and LIDAR systems. Read More »

Wide Input Range, No RSENSE Current Mode Boost, Flyback & SEPIC Controller Operates up to 175°C

The LTC1871X is a wide input range, current mode, boost, flyback or SEPIC controller that drives an N-channel power MOSFET and requires few external components. Intended for low to medium power applications, it eliminates the need for a current sense resistor by utilizing the power MOSFET's on-resistance, thereby maximizing efficiency. The LTC1871X is optimized for environments up to 175°C. Read More »

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