Linear Technology has introduced the LTC2351-14, a 1.5Msps low-power analog-to-digital converter with six simultaneous sampling differential inputs. Operating from a single 3.3V supply, power dissipation is typically 16.5mW. The LTC2351-14 features six individual sample-and-hold amplifiers, a multiplexer, and a single ADC making this device the ideal choice for multiphase power measurement, multiphase motor control, data acquisition systems, and...

A new high linearity direct conversion I/Q demodulator from Linear Technology significantly reduces the cost of 3G and WiMAX basestation receivers. The LT5575's extended operating frequency range from 800MHz to 2.7GHz covers all of the cellular and 3G infrastructure, WiMAX and RFID bands with a single part. Its capability to convert from RF directly to baseband at DC or low frequency results in simplified receiver designs, reduced component count...

Linear Technology has introduced the LTC2356-14, a 14-bit analog-to-digital converter that communicates via an SPI-compatible serial interface at output rates up to 3.5Msps. The LTC2356-14 operates from a single 3.3V supply, draws only 18mW at the maximum conversion rate, and is available in a tiny 10-pin MSOP package. The LTC2356-14's successive approximation register (SAR) architecture produces a low power ADC with exceptional AC specification...

Linear Technology has announced the LTC4558, a dual subscriber identity module (SIM) and Smart Card power supply IC with level translator that provides both 1.8V and 3V SIM power and digital signal level shifting in a tiny QFN package. The LTC4558 is ideal for GSM, TD-SCDMA and other 3G+ wireless applications that interface with either a 1.8V or 3V SIM or Smart Card. A channel select pin determines which channel is open for communication, while s...

Linear Technology has announced a new higher temperature version of the LT3010, a high voltage micropower, low dropout regulator that delivers up to 50mA of continuous output current. The newly released H grade version enables operation up to 140°C, compared to the E grade which operates up to 125°C. The LT3010 features an input voltage range of 3V to 80V, delivering output voltages as low as 1.275V. The LT3010-5 provides a fixed 5V output. The...

Linear Technology has announced the LT3482, a fixed frequency, current mode step-up DC/DC converter with a built-in voltage doubler designed to bias avalanche photodiodes (APDs) in optical receivers. The device can deliver an output of up to 90V from inputs ranging from 2.5V to 16V. The LT3482 features high side APD current monitoring, which offers better than 10% relative accuracy over a -40°C to 85°C temperature range. The integrated power sw...

Linear Technology has announced the LTC6104, a high-side current sense amplifier composed of two complete amplifiers with a combined single bipolar output. The dual amplifier topology is ideal for bidirectional operation and provides exceptional flexibility via gain programmability for each current sense direction. Separate amplifiers allow monitoring of a single current sense resistor, or separate sense resistors. Typical applications for the LT...

The LT5557, a new high linearity, 3.3V, downconverting active RF mixer from Linear Technology elevates receiver dynamic range performance while extending bandwidth capability to cover 3G and WiMAX basestation frequencies to 3.8 GHz. The LT5557 offers 24.7 dBm IIP3, noise figure of 11.7 dB, and 2.9 dB of gain at 1.95 GHz. Its performance remains robust at WiMAX frequencies with 23.5 dBm IIP3, and 1.7 dB of gain at 3.6GHz. This performance is achie...

Linear Technology's LTC6103 contains two independent, high side current sense amplifiers with exceptional precision and response time. As a dual, the LTC6103 is ideal for multiple current sensing applications such as H-bridge driver circuits. The unique topology also allows the second amplifier to be used for bi-directional operation, high/low current ranging or high voltage level translation.

Linear Technology has introduced the LTC3805, a current mode, programmable frequency PWM controller that reduces the size and complexity of flyback power supplies. This device contains all the features necessary to design high efficient single-ended isolated and non-isolated flyback converters rated up to 25 watts for telecommunications, networking equipment, Power-over-Ethernet (POE), automotive, consumer and general house keeping power supplies...

A new high performance quadrature modulator from Linear Technology is optimized for 850MHz to 965MHz GSM, CDMA2000, ISM, and RFID modulator applications. The LT5571 accepts I (In phase) and Q (Quadrature phase) baseband signals and modulates directly to RF. Its Zero or Low IF transmitter architecture enables basestation designers to achieve high performance while reducing power and parts count, shrinking size, and achieving system cost savings. T...

Linear Technology has announced the LTC3541, a 500mA high efficiency, 2.25 MHz, synchronous buck regulator and a 300mA VLDO in a single package. The LTC3541 provides two high efficiency voltage rails from a single input requiring only a single inductor. The synchronous buck regulator delivers up to 95% efficiency, whereas the VLDO output offers very low noise. The input voltage range of 2.7V to 5.5V makes the device ideal for single cell Li-Ion/P...

Linear Technology has announced the LT3497, a dual, full- featured, step-up DC/DC Converter designed to drive up to 12 white LEDs from a Li-Ion input. Its high efficiency, fixed frequency operation ensures uniform LED brightness, low noise and maximum battery life, and the on-chip schottky diodes eliminate both the added cost and space of external diodes. True Color PWM dimming enables dimming ranges of up to 250:1 without any color shift of the ...

Linear Technology has introduced the LT3845, a 4V to 60V input range, synchronous DC/DC step-down controller with adjustable 100kHz to 500kHz operating frequency. At higher frequencies users can implement a smaller inductor and capacitors, or at lower frequencies they can optimize the efficiency of the circuit. For noise- sensitive applications, the LT3845 can be synchronized to an external clock from 100kHz to 600kHz. The minimum 4V input mainta...

Linear Technology has announced the LTC3543, a high efficiency, 2.25 MHz, synchronous buck regulator that can deliver up to 600mA of continuous output current from a 2mm x 3mm DFN package. The LTC3543 can run in either a constant 2.25MHz frequency, spread spectrum or synchronized phase lock loop (PLL) mode, offering multiple choices for very low noise operation. Its current mode architecture operates from an input voltage range of 2.5V to 5.5V, m...

Linear Technology has announced the LTC3560, a high efficiency, 2.25 MHz, synchronous buck regulator that delivers up to 800mA of continuous output current from a ThinSOT package. Using a constant frequency and current mode architecture, the LTC3560 operates from an input voltage range of 2.5V to 5.5V, making it ideal for single cell Li-Ion, or multi-cell alkaline/NiCad/NiMH applications. It can generate output voltages as low as 0.6V, enabling i...

Linear Technology has introduced the LTC3773, a triple output, 3-phase current mode synchronous step-down switching regulator controller with output voltage up/down tracking. This controller provides a complete power management solution for FPGA, DSP and other multi-supply applications.

Linear Technology has introduced the LTC3823, a synchronous step-down DC/DC controller with differential output voltage sensing, fast transient response, integrated phase-lock loop synchronization and output voltage tracking. The differential amplifier provides true differential remote output voltage sensing of both the positive and negative terminals. This enables high accuracy regulation in high current applications where IR losses occur throug...

Linear Technology has introduced the LTC4242, a narrow, dual-slot PCI Express Hot Swap controller for mid-range networking or storage servers and embedded applications. The device simplifies the application by eliminating complex software interfaces, yet provides a rugged and compact solution for independently controlling the main supplies (12V and 3.3V) and the auxiliary (3.3V AUX) supply on two slots. Each supply is continuously monitored for u...

Linear Technology has introduced the LTC4307, an I2C bus buffer with low offset and stuck bus recovery that significantly increases the reliability of systems utilizing the I2C bus. With the growth in the number and complexity of plug-in boards, the addition of each new device adds to already accumulated offset voltages and can result in exceeded valid logic low specification. The LTC4307 adds only 50mV of logic low offset voltage between input a...