The HMC954LC4B is a 2 to 1 Multiplexer designed for 32 Gbps data serialization. The mux latches the two differential inputs on a rising edge of the input clock. The device uses both rising and falling edges of the half-rate clock to serialize the data. The HMC954LC4B also features an output level control pin, VR, which allows for loss compensation or for signal-level optimization.All differential inputs to the HMC954LC4B are CML and terminated on-chip with 50 ??to the positive supply, GND, and may be AC or DC coupled. The differential CML outputs are source terminated to 50 ? and may also be AC or DC coupled. Outputs can be connected directly to a 50 ??ground-terminated system or drive devices with CML logic input. The HMC954LC4B operates from a single ?3.3 V supply and is available in a ceramic ROHS-compliant 4 ? 4 mm SMT package.APPLICATIONS SONET OC-192 Broadband Test &?Measurement Equipment FPGA Interfacing Circuitry 16 G and 32 G Fiber Channel 100 Gbit Ethernet

The HMC987LP5E 1-to-9 fanout buffer is designed for low noise clock distribution. It is intended to generate relatively square wave outputs with rise/fall times < 100 ps. The low skew and jitter outputs of the HMC987LP5E, combined with its fast rise/fall times, leads to controllable low-noise switching of downstream circuits such as mixers, ADCs/DACs or SERDES devices. The noise floor is particularly important in these applications, when the clocknetwork bandwidth is wide enough to allow squarewave switching. Driven at 2 GHz, outputs of the HMC987LP5E have a noise floor of ?166 dBc/Hz, corresponding to a jitter density of 0.6 asec/rtHz - or 50 fs over an 8 GHz bandwidth.The input stage can be driven single-ended or differentially, in a variety of signal formats (CML, LVDS, LVPECL or CMOS), AC or DC coupled. The input stage also features adjustable input impedance. It has 8 LVPECL outputs, and 1 CML output with adjustable swing/power-level in 3 dB steps.Individual output stages may be enabled or disabled for power-savings when not required using either hardware control pins, or under control of a serial-port interface.APPLICATIONS SONET, Fibre Channel,?GigE Clock Distribution ADC/DAC Clock Distribution Low Skew and Jitter Clock?or Data Fanout Wireless/Wired Communications Level Translation High Performance Instrumentation Medical Imaging Single-Ended to Differential?Conversion

The ADG5404 is a complementary metal-oxide semiconductor(CMOS) analog multiplexer, comprising four single channels.The on-resistance profile is very flat over the full analog input range, ensuring excellent linearity and low distortion when switching audio signals.The ADG5404 is designed on a trench process, which guardsagainst latch-up. A dielectric trench separates the P and Nchannel transistors, thereby preventing latch-up even undersevere overvoltage conditions.The ADG5404 switches one of four inputs to a common output,D, as determined by the 3-bit binary address lines, A0, A1, andEN. Logic 0 on the EN pin disables the device. Each switchconducts equally well in both directions when on and has aninput signal range that extends to the supplies. In the off condition, signal levels up to the supplies are blocked. All switchesexhibit break-before-make switching action.Product Highlights Trench Isolation Guards Against Latch-Up. A dielectric trench separates the P and N channel transistors, thereby preventing latch-up even under severe overvoltage conditions. Low RON. Dual-Supply Operation. For applications where the analog signal is bipolar, the ADG5404 can be operated from dual supplies of up to ?22 V. Single-Supply Operation. For applications where the analog signal is unipolar, the ADG5404 can be operated from a single-rail power supply of up to 40 V. 3 V logic-compatible digital inputs: VINH = 2.0 V, VINL = 0.8 V. No VL logic power supply required.Applications Relay replacement Automatic test equipment Data acquisition Instrumentation Avionics Audio and video switching Communication systems

The ADG5419 is a monolithic industrial CMOS analog switch containing a latch-up immune single-pole/double-throw (SPDT) switch. An EN input on the LFCSP package is used to enable or disable the device. When disabled, all channels are switched off.Each switch conducts equally well in both directions when on, and each switch has an input signal range that extends to the power supplies. In the off condition, signal levels up to the supplies are blocked. The ADG5419 exhibits break-before-make switching action for use in multiplexer applications.The ultralow on resistance and on-resistance flatness of these switches make them ideal solutions for data acquisition and gain switching applications, where low distortion is critical. The latch-up immune construction, and high ESD rating, makes these switches more robust in harsh environments.PRODUCT HIGHLIGHTS Trench isolation guards against latch-up. A dielectric trench separates the P and N channel transistors thereby preventing latch-up even under severe overvoltage conditions. Low RON. Dual-supply operation. For applications where the analog signal is bipolar, the ADG5419 can be operated from dual supplies up to ?22 V. Single-supply operation. For applications where the analog signal is unipolar, the ADG5419 can be operated from a single-rail power supply up to 40 V. 3 V logic compatible digital inputs: VINH = 2.0 V, VINL = 0.8 V. No VL logic power supply required.APPLICATIONS High voltage signal routing Automatic test equipment Analog front-end circuits Precision data acquisition Industrial Instrumentation Amplifier gain select Relay replacement

The AD1937 is a high performance, single-chip codec that provides four analog-to-digital converters (ADCs) with differential input and eight digital-to-analog converters (DACs) with differential output, using the Analog Devices, Inc., patented multibit sigma-delta (?-?) architecture. An I2C? port is included, allowing a microcontroller to adjust volume and many other parameters. The AD1937 operates from 3.3 V digital and analog supplies. The AD1937 is available in a 64-lead (differential output) LQFP.The AD1937 is designed for low EMI. This consideration is apparent in both the system and circuit design architectures. By using the on-board PLL to derive the master clock from the LR (frame) clock or from an external crystal, the AD1937 eliminates the need for a separate high frequency master clock and can also be used with a suppressed bit clock. The DACs and ADCs are designed using the latest Analog Devices continuous time architecture to further minimize EMI. By using 3.3 V supplies, power consumption is minimized and further reduces emissions.ApplicationsAutomotive audio systems Home theater systemsSet-top boxesDigital audio effects processorsData Sheet, Rev. 0, 9/08

The AD5247 provides a compact, 2 mm ? 2.1 mm, packaged solution for 128-position adjustment applications. This device performs the same electronic adjustment function as a mechanical potentiometer or a variable resistor. Available in four different end-to-end resistance values (5 k?, 10 k?, 50 k?, and 100 k?), these low temperature coefficient devices are ideal for high accuracy and stability variable resistance adjustments.The wiper settings are controllable through the I2C?-compatible digital interface, which can also be used to read back the present wiper register control word. The 10 k? and 100 k? options each have three hard-coded slave address options available to allow users access to three of these devices on one I2C bus (see Table 8 for a full list of slave address locations).The resistance between the wiper and either end point of the fixed resistor varies linearly with respect to the digital code transferred into the RDAC latch. Note the terms digital potentiometer, VR (variable resistor), and RDAC are used interchangeably in this document.Operating from a 2.7 V to 5.5 V power supply and consuming 3 ?A allows the AD5247 to be used in portable battery-operated applicationsApplications Mechanical potentiometer replacement in new designs Transducer adjustment of pressure, temperature, position, chemical, and optical sensors RF amplifier-biasing LCD brightness and contrast adjustment Automotive electronics adjustment Gain control and offset adjustment

The AD5313R, a member of the nanoDAC? family, is a low power, dual, 10-bit buffered voltage output digital-to-analog converter (DAC). The device includes a 2.5 V, 2 ppm/?C internal reference (enabled by default) and a gain select pin giving a full-scale output of 2.5 V (gain = 1) or 5 V (gain = 2). The AD5313R operates from a single 2.7 V to 5.5 V supply, is guaranteed monotonic by design, and exhibits less than 0.1% FSR gain error and 1.5 mVoffset error performance. The device is available in a 3 mm ?3 mm LFCSP package and a TSSOP package.The AD5313R also incorporates a power-on reset circuit and a RSTSEL pin that ensures that the DAC outputs power up tozero scale or midscale and remain there until a valid write occurs. The part contains a per channel power-down feature that reduces the current consumption of the device to 4 ?A at 3 V while in power-down modeThe AD5313R employs a versatile serial peripheral interface (SPI) that operates at clock rates up to 50 MHz, and the devicecontains a VLOGIC pin that is intended for 1.8 V/3 V/5 V logic.Product Highlights Precision DC Performance. Total unadjusted error: ?0.1% of FSR maximum Offset error: ?1.5 mV maximum Gain error: ?0.1% of FSR maximum Low Drift 2.5 V On-Chip Reference. 2 ppm/?C typical temperature coefficient 5 ppm/?C maximum temperature coefficient Two Package Options. 3 mm ? 3 mm, 16-lead LFCSP 16-lead TSSOPApplications Optical transceivers? Base station power amplifiers? Process control (PLC I/O cards) Industrial automation Data acquisition systems

The AD5535B is a 32-channel, 14-bit denseDAC? with an on-chip high voltage output amplifier. This device is targeted for optical micro-electromechanical systems. The output voltage range is programmable via the REF_IN pin. The output range is 0 V to 50 V when REF_IN = 1 V, and 0 V to 200 V when REF_IN = 4 V. Each amplifier can source 550 ?A, which is ideal for the deflection and control of optical MEMS mirrors.The selected digital-to-analog converter (DAC) register is written to via the 3-wire interface. The serial interface operates at clock rates of up to 30 MHz and is compatible with DSP and micro-controller interface standards.The device is operated with AVCC = 4.75 V to 5.25 V, DVCC = 2.7 V to 5.25 V, V+ = 4.75 V to 5.25 V, and VPP of up to 225 V. REF_IN is buffered internally on the AD5535B and should be driven from a stable reference source.Applications Optical microelectromechanical systems (MEMS) Optical crosspoint switches Micropositioning applications using piezoelectric actuators Level setting in automotive test and measurement

The AD7745/AD7746 are a high resolution, ?-? capacitance-to-digital converter (CDC). The capacitance to be measured is connected directly to the device inputs. The architecture fea-tures inherent high resolution (24-bit no missing codes, up to 21-bit effective resolution), high linearity (?0.01%), and high accuracy (?4 fF factory calibrated). The AD7745/AD7746 capacitance input range is ?4 pF (changing), while it can accept up to 17 pF common-mode capacitance (not changing), which can be balanced by a programmable on-chip, digital-to-capacitance converter (CAPDAC). The AD7745 has one capacitance input channel, while the AD7746 has two channels. Each channel can be configured as single-ended or differential. The AD7745/AD7746 are designed for floating capacitive sensors. For capacitive sensors with one plate connected to ground, the AD7747 is recommended. The parts have an on-chip temperature sensor with a resolution of 0.1?C and accuracy of ?2?C. The on-chip voltage reference and the on-chip clock generator eliminate the need for any external components in capacitive sensor applications. The parts have a standard voltage input, which together with the differential reference input allows easy interface to an external temperature sensor, such as an RTD, thermistor, or diode. The AD7745/AD7746 have a 2-wire, I2C-compatible serial interface. Both parts can operate with a single power supply from 2.7 V to 5.25 V. They are specified over the automotive temperature range of ?40?C to +125?C and are housed in a 16-lead TSSOP package. ApplicationsAutomotive, Industrial and Medical Systems for: Pressure Measurement Position Sensors Level Sensors Flowmeters Humidity Sensors Impurity Detection

The ADM2490E is an isolated data transceiver with ?8 kV ESD protection that is suitable for high speed, full-duplex communication on multipoint transmission lines. It is designed for balanced transmission lines and complies with ANSI TIA/EIA-485-A-1998 and ISO 8482: 1987(E). The device employs Analog Devices, Inc., iCoupler? technology to combine a 2-channel isolator, a three-state differential line driver, and a differential input receiver into a single package.The differential transmitter outputs and receiver inputs feature electrostatic discharge circuitry that provides protection to ?8 kV using the human body model (HBM). The logic side of the device can be powered with either a 5 V or a 3 V supply, whereas the bus side requires an isolated 5 V supply.The device has current-limiting and thermal shutdown features to protect against output short circuits and situations where bus contention could cause excessive power dissipation.The ADM2490E is available in a wide body, 16-lead SOIC package and operates over the ?40?C to +105?C temperature range.Applications Isolated RS-485/RS-422 Interfaces Industrial Field Networks INTERBUS Multipoint Data Transmission Systems