The ADN4650/ADN4651/ADN46521 are signal isolated, low voltage differential signaling (LVDS) buffers that operate at up to 600 Mbps with very low jitter.The devices integrate Analog Devices, Inc., iCoupler? technology, enhanced for high speed operation, to provide galvanic isolation of the TIA/EIA-644-A compliant LVDS drivers and receivers. This technology allows drop-in isolation of an LVDS signal chain.Multiple channel configurations are offered, and the LVDS receivers on the ADN4651/ADN4652 include a fail-safe mechanism to ensure a Logic 1 on the corresponding LVDS driver output when the inputs are floating, shorted, or terminated, but not driven.For high speed operation with low jitter, the LVDS and isolator circuits rely on a 2.5 V supply. An integrated on-chip low dropout regulator (LDO) can provide the required 2.5 V from an external 3.3 V power supply. The devices are fully specified over a wide industrial temperature range and are available in a 20-lead, wide body SOIC package with 5 kV rms isolation or a 20-lead SSOP package with 3.75 kV rms isolation.Applications Analog front-end (AFE) isolation Data plane isolation Isolated high speed clock and data links Isolated serial peripheral interface (SPI) over LVDS

The ADN4654/ADN4655/ADN46561? are signal isolated, low voltage differential signaling (LVDS) buffers that operate at up to 1.1 Gbps with low jitter. The devices integrate Analog Devices, Inc., iCoupler? technology, enhanced for high speed operation to provide galvanic isolation of the TIA/EIA-644-A compliant LVDS drivers and receivers. This integration allows drop-in isolation of an LVDS signal chain.The ADN4654/ADN4655/ADN4656 comprise multiple channel configurations, and the LVDS receivers on the ADN4655 and ADN4656 include a fail-safe mechanism to ensure a Logic 1 on the corresponding LVDS driver output when the inputs are floating, shorted, or terminated but not driven.For high speed operation with low jitter, the LVDS and isolator circuits rely on a 2.5 V supply. An integrated on-chip low dropout (LDO) regulator can provide the required 2.5 V from an external 3.3 V power supply. The devices are fully specified over a wide industrial temperature range and come in a 20-lead, wide body SOIC_W package with 5 kV rms isolation or in a 20-lead SSOP package with 3.75 kV rms isolation.Applications Isolated video and imaging data Analog front-end isolation Data plane isolation Isolated high speed clock and data links1 Protected by U.S. Patents 5,952,849; 6,873,065; 6,903,578; and 7,075,329. Other patents are pending.

The ADN4691E?/?ADN4693E?/?ADN4696E?/ ADN4697E aremultipoint, low voltage differential signaling (M-LVDS)transceivers (driver and receiver pairs) that can operate at up to200 Mbps (100 MHz). The receivers detect the bus state with adifferential input of as little as 50 mV over a common-modevoltage range of ?1 V to +3.4 V. ESD protection of up to ?15 kVis implemented on the bus pins. The devices adhere to theTIA/EIA-899 standard for M-LVDS and complement TIA/EIA-644 LVDS devices with additional multipoint capabilities.The ADN4691E / ADN4693E are Type 1 receivers with 25 mV ofhysteresis so that slow-changing signals or loss of input does notlead to output oscillations. The ADN4696E / ADN4697E areType 2 receivers exhibiting an offset threshold, guaranteeing theoutput state when the bus is idle (bus-idle fail-safe) or the inputs areopen (open-circuit fail-safe).The devices are available as half-duplex in an 8-lead SOIC package(the ADN4691E / ADN4696E) or as full-duplex in a 14-leadSOIC package (the ADN4693E / ADN4697E).APPLICATIONS Backplane and cable multipoint data transmission Multipoint clock distribution Low power, high speed alternative to shorter RS-485 links Networking and wireless base station infrastructure

The DC539B demo board is used to evaluate the LTC5509, RF power detector with integrated output buffer and voltage reference. The LTC5509 converts an RF input signal at pin 6 (RF) to a DC voltage at pin 3 (VOUT). The RF input frequency range is 300 MHz to 3000 MHz. Maximum input power is 8 dBm. The output voltage at VOUT will start at an initial DC value of typically 250mV. When the RF signal is applied the output voltage will increase.

The LTC6910 family are low noise digitally programmable gain amplifiers (PGAs) that are easy to use and occupy very little PC board space. The inverting gain is adjustable using a 3-bit digital input to select gains of 0, 1, 2, 5, 10, 20, 50 and 100V/V in the LTC6910-1; 0, 1, 2, 4, 8, 16, 32 and 64V/V in the LTC6910-2; and 0, 1, 2, 3, 4, 5,6 and 7V/V in the LTC6910-3.The LTC6910-Xs are inverting amplifiers with rail-to-rail output. When operated with unity gain, they will also process rail-to-rail input signals. A half-supply reference generated internally at the AGND pin supports single power supply applications. Operating from single or split supplies from 2.7V to 10.5V, the LTC6910-X family is offered in an 8-lead SOT-23 package.Applications Data Acquisition Systems Dynamic Gain Changing Automatic Ranging Circuits Automatic Gain Control

The LTC2414/LTC2418 are 8-/16-channel (4-/8-differential) micropower 24-bit ?? analog-to-digital converters. They operate from 2.7V to 5.5V and include an integrated oscillator, 2ppm INL and 0.2ppm RMS noise. They use delta-sigma technology and provide single cycle settling time for multiplexed applications. Through a single pin, the LTC2414/LTC2418 can be configured for better than 110dB differential mode rejection at 50Hz or 60Hz ?2%, or they can be driven by an external oscillator for a user-defined rejection frequency. The internal oscillator requires no external frequency setting components.The LTC2414/LTC2418 accept any external differential reference voltage from 0.1V to VCC for flexible ratiometric and remote sensing measurement applications. They can be configured to take 4/8 differential channels or 8/16 single-ended channels. The full-scale bipolar input range is from -5VREF to 0.5VREF. The reference common mode voltage, VREFCM, and the input common mode voltage, VINCM, may be independently set within GND to VCC. The DC common mode input rejection is better than 140dB.The LTC2414/LTC2418 communicate through a flexible 4-wire digital interface that is compatible with SPI and MICROWIRE protocols.Applications Direct Sensor Digitizer Weight Scales Direct Temperature Measurement Gas Analyzers Strain Gauge Transducers Instrumentation Data Acquisition Industrial Process Control

The LT6202/LT6203/LT6204 are single/dual/quad low noise, rail-to-rail input and output unity gain stable op amps that feature 1.9nV/?Hz noise voltage and draw only 2.5mA of supply current per amplifier. These amplifiers combine very low noise and supply current with a 100MHz gain bandwidth product, a 25V/?s slew rate, and are optimized for low supply signal conditioning systems.These amplifiers maintain their performance for supplies from 2.5V to 12.6V and are specified at 3V, 5V and ?5V supplies. Harmonic distortion is less than ? 80dBc at 1MHz making these amplifiers suitable in low power data acquisition systems.The LT6202 is available in the 5-pin TSOT-23 and the 8-pin SO, while the LT6203 comes in 8-pin SO and MSOP packages with standard op amp pinouts. For compact layouts the LT6203 is also available in a tiny fine line leadless package (DFN), while the quad LT6204 is available in the 16-pin SSOP and 14-pin SO packages. These devices can be used as plug-in replacements for many op amps to improve input/output range and noise performance.Applications Low Noise, Low Power Signal Processing Active Filters Rail-to-Rail Buffer Amplifiers Driving A/D Converters DSL Receivers Battery Powered/Battery Backed Equipment

DC606A: Demo Board for the LTC4056-4.2 Linear Li-Ion Charger with Termination in ThinSOT.

Demonstration Circuit 616 is a synchronous, 4-phase boost converter using the LTC3425. It is capable of operating below 1V input. DC616A is set for 3.3V output. DC616B is set for 5V output. On each demo board, the left circuit gives higher efficiency and current rating; while the right circuit has smaller size and lower cost. The switching frequency is set at 1MHz per phase, minimizing inductor and capacitor size. A single resistor at RT pin sets the frequency. If desired, the LTC3425 can be synchronized to an external clock.

The LT3781 controller simplifies the design of high power synchronous dual transistor forward DC/DC converters. The part employs fixed frequency current mode control and supports both isolated and nonisolated topologies. The IC drives external N-channel power MOSFETs and operates with input voltages up to 72V.The LT3781 is ideal for output derived power schemes, through the use of a large undervoltage lockout hysteresis range. The part is also equipped with an 18V VCC shunt regulator, which prevents exceeding absolute maximum ratings while in trickle start applications.The LT3781?s operating frequency is programmable and can be synchronized up to 350kHz. Switch phase is also controlled during synchronized operation to accommodate multiple-converter systems. Internal logic guarantees 50% maximum duty cycle operation to prevent transformer saturation.The LT3781 is available in a 20-lead SSOP package.Applications Isolated Telecommunication Systems Personal Computers and Peripherals Distributed Power Step-Down Converters Lead Acid Battery Backup Systems Automotive and Heavy Equipment