Linear Technology has introduced the LTC1859, a 16-bit, 8-channel, 100ksps analog-to-digital converter offering software programmable input ranges that are fault-protected to ±25V. The LTC1859 is easily programmed via a serial interface to accept 0V-5V, 0V-10V, ±5V and ±10V inputs, allowing a single-board design to accommodate several industrial applications. All channels are fault protected to ±25V. An overvoltage fault up to ±25V on one or...

Linear Technology has introduced the LTC4096/X standalone dual-input linear battery chargers. These devices charge single-cell Li-Ion/Polymer batteries from wall adapter or USB power sources. The LTC4096/X use a constant-current/constant-voltage algorithm for charging, with programmable charge current up to 1.2A from a wall adapter supply or up to 1A from a USB supply while automatically sensing the presence of voltage at each input. Applications...

Linear Technology has introduced the LTC2952, a versatile power management IC with push-button on/off control for system power and system monitoring features. The power management function features two ideal PowerPath controllers suitable for applications requiring an ideal diode-OR function for load sharing or automatic switchover between two input power sources. The low loss switchover is achieved by regulating two external P-channel MOSFETs wi...

Linear Technology has announced the LT3506 and LT3506A, dual current mode PWM step-down DC/DC converters with two 2A power switches packaged in a 16-lead 5mm x 4mm DFN package. Each channel is capable of delivering up to 1.6A of output current. Their wide input range of 3.6V to 25V makes them ideal for regulating power from a wide variety of sources, including four cell batteries, 5V and 12V rails, unregulated wall transformers, lead acid batteri...

Linear Technology has announced a new family of ultralow power op amps that set a new standard for precision low voltage operation and tiny footprint. The LT6003 (single), LT6004 (dual) and LT6005 (quad) amplifiers draw less than 1uA and operate from 1.6V to 16V. With input offset voltage of 500uV max at 25°C and a maximum drift of 5uV/°C, the LT6003 family is the most precise low voltage ultra low op amp. A tiny 2mm x 2mm DFN package makes the...

Linear Technology has announced the LTC3547, a dual channel, high efficiency, 2.25 MHz, synchronous buck regulator that delivers up to 300mA of continuous output current per channel from a 3mm x 2mm DFN package. Using a constant frequency current mode architecture, the LTC3547 operates from an input voltage range of 2.5V to 5.5V, making it ideal for single cell Li-Ion/Polymer, or multicell alkaline/NiCad/NiMH applications.

Linear Technology has announced the LT3505, a current mode PWM step-down DC/DC converter with an internal 1.75A power switch, packaged in a tiny 8-lead 3mm x 3mm DFN package. Its wide input range of 3.6V to 36V and capability to withstand 40V transients makes the LT3505 ideal for regulating power from a wide variety of sources, including unregulated wall transformers, 24V industrial supplies and automotive batteries. For automotive applications, ...

Linear Technology has introduced the LTC2910, a low power voltage monitoring circuit with eight individual undervoltage monitoring inputs. Featuring adjustable inputs with a 0.5V threshold and a tight 1.5% threshold accuracy over the entire temperature range, the LTC2910 greatly simplifies voltage monitoring in the latest generation of multisupply systems. Two external resistors per input determine the desired trip point for the undervoltage moni...

Linear Technology has introduced the LTC2498 16-channel delta-sigma analog-to-digital converter (ADC), featuring a front-end design that can directly digitize a wide range of sensors. The LTC2498's Easy Drive design results in zero average differential input current, allowing measurements of high impedance input sources without the use of an internal buffer. This patented sampling scheme simplifies the design of front-end signal conditioning circ...

Linear Technology has announced the LTC3526, a 1MHz, current mode, synchronous boost DC/DC converter with output disconnect and integrated soft-start capability. Its internal 500mA switches can deliver output voltages as high as 5V from an input voltage range of 0.85V to 4.4V, making it ideal for Li-Ion/Polymer or single/multicell alkaline/NiMH applications. The LTC3526 can deliver up to 100mA of continuous output current (at 3.3V) from a single ...

Linear Technology has announced the LTC3446, a 1A, 2.25 MHz, synchronous buck regulator with two 300mA VLDOs in a single monolithic IC. The input voltage range of 2.5V to 5.5V makes this triple output regulator ideal for single cell Li-Ion/Polymer, or multicell alkaline/NiCad/NiMH powered applications. It can generate output voltages as low as 0.8V from the buck regulator and 0.4V for each of the VLDOs, enabling it to power the latest generation ...

Linear Technology has introduced the LTC2856/LTC2857/LTC2858 low power RS485/422 transceivers, operating on 5V supplies. The LTC2856-1, LTC2857-1 and LTC2858-1 operate at maximum data rates of 20MBps, while the LTC2856-2, LTC2857-2 and LTC2858-2 feature 250kbps slew rate limited driver outputs to control high frequency emission from equipment and data cables. Enhanced ESD protection on the transceiver interface pins allows the ICs to withstand ...

Linear Technology has announced the latest addition to its family of low noise, precision CMOS op amps. With a gain bandwidth of 50MHz and input characteristics that challenge precision bipolar amplifiers, the LTC6244 dual op amp offers breakthrough performance that no other amplifier can deliver. Guaranteed offset voltage of only 300uV max over the full industrial temperature range rivals the 25°C spec for other amplifiers in its class. Using a...

Linear Technology has announced the LTC3549, a high efficiency, 2.25MHz, synchronous buck regulator that can deliver up to 250mA of continuous output current from input voltages as low as 1.6V. Using a constant frequency and current mode architecture, the LTC3549 operates from an input voltage range of 1.6V to 5.5V, making it ideal for single cell Li-Ion, or dual-cell alkaline/NiCad/NiMH applications. It can generate output voltages as low as 0.6...

Linear Technology has announced the LT3476, a 2MHz DC/DC converter designed to operate as a four channel constant current LED driver. Each channel of the LT3476 can drive up to eight 1A LEDs in series, enabling the LT3476 to drive up to 32 1A LEDs while delivering efficiencies up to 96%. Each of the four channels is operated by an independent True Color PWM signal, enabling each channel to be dimmed independently to ratios as high as 1000:1.

Linear Technology has announced new wider temperature range versions of its LT1763 and LT1764A high current, low noise linear regulators. The new MP grade features operation from -55°C to +125°C for a wide range of applications including avionics, military, industrial, RF and telecom.

Linear Technology has introduced the LTC3822, a 2.75V to 4.5V input synchronous step-down DC/DC controller that drives N-channel MOSFETs without requiring an external supply for gate drive. In addition, the LTC3822 eliminates the need for a sense resistor by using MOSFET RDS(ON) sensing current, which improves efficiency and reduces solution cost.

Linear Technology has introduced the LTC2914, a precision quad input voltage monitor with four separate undervoltage (UV) and overvoltage (OV) inputs, designed for systems with multiple supplies. The IC offers a versatile and precise solution for voltage monitoring by giving the user the flexibility to configure specific UV and OV trip thresholds, while also guaranteeing ±1.5% threshold accuracy of the monitored voltages over temperature. A buff...

Linear Technology has introduced the LTC3835, a very low quiescent current step-down DC/DC synchronous controller. The LTC3835 draws only 80uA in sleep mode, making it ideal for preserving battery energy in applications such as automotive navigation or battery-powered monitoring devices where the system remains semi-active when the engine or the power is off.

Linear Technology has announced the LTC2285, a 14-bit 125Msps dual high-speed Analog to Digital Converter with low power dissipation of just 395mW per channel. This high speed device is optimized for use in power efficient, multi-carrier wireless basestation transceiver applications including WiBro and WiMAX standards with performance of 71.3dB SNR and 78dB SFDR at 140MHz. The high sampling rate allows designers to capture wider channel bandwidth...