The ADcmXL3021 is a complete vibration sensing system that combines high performance vibration sensing (using micro-electromechanical systems (MEMS) accelerometers) with a variety of signal processing functions to simplify the development of smart sensor nodes in condition-based monitoring (CBM) systems. The typical ultralow noise density (26 ?g/?Hz) in the MEMS accelerometers supports excellent resolution. The wide bandwidth (dc to 10 kHz within 3 dB flatness) enables tracking of key vibration signatures on many machine platforms.The signal processing includes high speed data sampling (220 kSPS), 4096 time sample record lengths, filtering, windowing, fast Fourier transform (FFT), user configurable spectral or time statistic alarms, and error flags. The serial peripheral interface (SPI) provides access to a register structure that contains the vibration data and a wide range of user configurable functions.The ADcmXL3021 is available in a 23.7 mm ? 27.0 mm ? 12.4 mm aluminum package with four mounting flanges to support installation with standard machine screws. This package provides consistent mechanical coupling to the core sensors over a broad frequency range. The electrical interface is through a 14-pin connector on a 36 mm flexible cable, which enables a wide range of location and orientation options for system mating connectors.The ADcmXL3021 requires only a single, 3.3 V power supply and supports an operating temperature range of ?40?C to +105?C.Applications Vibration analysis CBM systems Machine health Instrumentation and diagnostics Safety shutoff sensing

The ADCMP580/ADCMP581/ADCMP582 are ultrafast voltagecomparators fabricated on the Analog Devices, Inc. proprietaryXFCB3 Silicon Germanium (SiGe) bipolar process. TheADCMP580 features CML output drivers, the ADCMP581features reduced swing ECL (negative ECL) output drivers, andthe ADCMP582 features reduced swing PECL (positive ECL)output drivers.All three comparators offer 180 ps propagation delay and 100 psminimum pulse width for 10 Gbps operation with 200 fs randomjitter (RJ). Overdrive and slew rate dispersion are typically lessthan 15 ps.The ?5 V power supplies enable a wide ?2 V to +3 V inputrange with logic levels referenced to the CML/NECL/PECLoutputs. The inputs have 50 ? on-chip termination resistorswith the optional capability to be left open (on an individualpin basis) for applications requiring high impedance input. The CML output stage is designed to directly drive 400 mV into50 ? transmission lines terminated to ground. The NECL outputstages are designed to directly drive 400 mV into 50 ? terminatedto ?2 V. The PECL output stages are designed to directly drive400 mV into 50 ? terminated to VCCO ? 2 V. High speed latchand programmable hysteresis are also provided. The differentiallatch input controls are also 50 ? terminated to an independentVTT pin to interface to either CML or ECL or to PECL logic.The ADCMP580/ADCMP581/ADCMP582 are available in a16-lead LFCSP.Applications Automatic test equipment (ATE) High speed instrumentation Pulse spectroscopy Medical imaging and diagnostics High speed line receivers Threshold detection Peak and zero-crossing detectors High speed trigger circuitry Clock and data signal restoration

The ADE7753 features proprietary ADCs and DSP for highaccuracy over large variations in environmental conditions andtime. The ADE7753 incorporates two second-order 16-bit ?-?ADCs, a digital integrator (on CH1), reference circuitry,temperature sensor, and all the signal processing required toperform active, reactive, and apparent energy measurements,line-voltage period measurement, and rms calculation on thevoltage and current. The selectable on-chip digital integratorprovides direct interface to di/dt current sensors such asRogowski coils, eliminating the need for an external analogintegrator and resulting in excellent long-term stability and precisephase matching between the current and voltage channels.The ADE7753 provides a serial interface to read data, and apulse output frequency (CF), which is proportional to the activepower. Various system calibration features, i.e., channel offsetcorrection, phase calibration, and power calibration, ensurehigh accuracy. The part also detects short duration low or highvoltage variations.The positive-only accumulation mode gives the option toaccumulate energy only when positive power is detected. Aninternal no-load threshold ensures that the part does not exhibitany creep when there is no load. The zero-crossing output (ZX)produces a pulse that is synchronized to the zero-crossing pointof the line voltage. This signal is used internally in the line cycleactive and apparent energy accumulation modes, which enables faster calibration.The interrupt status register indicates the nature of the interrupt,and the interrupt enable register controls which event producesan output on the IRQ pin, an open-drain, active low logic output.The ADE7753 is available in a 20-lead SSOP package.NOTE: For polyphase system designs, the ADE7758 is recommended.

The ADE7880 is high accuracy, 3-phase electrical energy measurement IC with serial interfaces and three flexible pulse outputs. The ADE7880 device incorporates second-order sigma-delta (?-?) analog-to-digital converters (ADCs), a digital integrator, reference circuitry, and all of the signal processing required to perform the total (fundamental and harmonic) active, and apparent energy measurements, rms calculations, as well as fundamental-only active and reactive energy measurements. In addition, the ADE7880 computes the rms of harmonics on the phase and neutral currents and on the phase voltages, together with the active, reactive, and apparent power, and the power factor and harmonic distortion on each harmonic for all phases. Total harmonic distortion plus noise (THD + N) is computed for all currents and voltages. A fixed function digital signal processor (DSP) executes this signal processing. The DSP program is stored in the internal ROM memory.The ADE7880 is suitable for measuring active, reactive, and apparent energy in various 3-phase configurations, such as wye or delta services with both three and four wires. The ADE7880 provides system calibration features for each phase, that is, rms offset correction, phase calibration, and gain calibration. The CF1, CF2, and CF3 logic outputs provide a wide choice of power information: total active powers, apparent powers, or the sum of the current rms values, and fundamental active and reactive powers.The ADE7880 contains waveform sample registers that allow access to all ADC outputs. The devices also incorporate power quality measurements, such as short duration low or high voltage detections, short duration high current variations, line voltage period measurement, and angles between phase voltages and currents. Two serial interfaces, SPI and I2C, can be used to communicate with the ADE7880. A dedicated high speed interface, the high speed data capture (HSDC) port, can be used in conjunction with I2C to provide access to the ADC outputs and real-time power information. The ADE7880 also has two interrupt request pins, IRQ0 and IRQ1, to indicate that an enabled interrupt event has occurred. Three specially designed low power modes ensure the continuity of energy accumulation when the ADE7880 is in a tampering situation. The ADE7880 is available in the 40-lead LFCSP, Pb-free package, pin-for-pin compatible with ADE7854, ADE7858, ADE7868, and ADE7878?devices.APPLICATIONS Energy metering systems Power quality monitoring Solar inverters Process monitoring Protective devices

The ADE7903 is a nonisolated, 3-channel, ?-? analog-to-digital converter (ADC) for the neutral line of polyphase energymetering applications using shunt current sensors. The ADE7903 can also be used for single-phase energy meteringand other standalone ADC applications. The ADE7903 features three 24-bit ADCs. The current ADC provides a 67 dBFSsignal-to-noise ratio (SNR) over a 3.3 kHz signal bandwidth, whereas the voltage ADCs provide an SNR of 72 dBFS over thesame bandwidth. One channel is dedicated to measuring the voltage across a shunt when the shunt is used for current sensing.Up to two additional channels are dedicated to measuring voltages, which are usually sensed using resistor dividers.One voltage channel can be used to measure the temperature of the die via an internal sensor. The ADE7903 includes threechannels: one current channel and two voltage channels.Together with the ADE7912?/ ADE7913, the ADE7903 providesa small form factor, 3-phase isolated solution with a neutralmeasurement. The three phases are isolated with ADE7912 /ADE7913 devices, while the neutral line is not isolated with theADE7903. The ADE7903 configuration and status registers are accessedvia a bidirectional SPI serial port for easy interfacing withmicrocontrollers.The ADE7903 can be clocked from a crystal or an externalclock signal. To minimize the system bill of materials, themaster ADE7912 / ADE7913 can drive the clocks of up to threeadditional ADE7912 / ADE7913 or ADE7903 devices.Multiple ADE7912 / ADE7913 and ADE7903 devices can besynchronized to sample at the same moment and providecoherent outputs. The ADE7903 can also be used individuallyas a standalone ADC. The ADE7903 is available in a 20-lead, Pb-free, wide body SOICpackage.APPLICATIONS 3-phase shunt-based polyphase meters with neutral channel measurement Single-phase meters Power quality monitoring Solar inverters Process monitoring Standalone ADCs Protective devices Isolated sensor interfaces Industrial programmable logic controllers (PLCs)

The ADE7953 is a high accuracy electrical energy measurementIC intended for single phase applications. It measures line voltageand current and calculates active, reactive, and apparent energy,as well as instantaneous rms voltage and current.The device incorporates three ?-? ADCs with a high accuracyenergy measurement core. The second input channel simultaneouslymeasures neutral current and enables tamper detectionand neutral current billing. The additional channel incorporatesa complete signal path that allows a full range of measurements.Each input channel supports independent and flexible gain stages,making the device suitable for use with a variety of current sensorssuch as current transformers (CTs) and low value shunt resistors.Two on-chip integrators facilitate the use of Rogowski coil sensors.The ADE7953 provides access to on-chip meter registers via avariety of communication interfaces including SPI, I2C, and UART.Two configurable low jitter pulse output pins provide outputs thatare proportional to active, reactive, or apparent energy, as well ascurrent and voltage rms. A full range of power quality informationsuch as overcurrent, overvoltage, peak, and sag detection areaccessible via the external IRQ pin. Independent active, reactive,and apparent no-load detections are included to prevent ?metercreep.? Dedicated reverse power (REVP), zero-crossing voltage(ZX), and zero-crossing current (ZX_I) pins are also provided. TheADE7953 energy metering IC operates from a 3.3 V supply voltageand is available in a 28-lead LFCSP package.

The ADF4152HV is a 5.0 GHz, fractional-N or integer N frequency synthesizer with an integrated high voltage charge pump. The synthesizer can drive external wideband voltage controlled oscillators (VCOs) directly, eliminating the need for operational amplifiers to achieve higher tuning voltages. The integrated high voltage charge pump simplifies design and reduces cost while improving phase noise, in contrast to active filter topologies, which tend to degrade phase noise compared to passive filter topologies.The VCO frequency can be divided by 1, 2, 4, 8, or 16 to allow the user to generate RF output frequencies as low as 31.25 MHz. For applications that require isolation, the RF output stage can be muted. The mute function is both pin and software controllable.A simple 3-wire interface controls all on-chip registers. The charge pump operates from a power supply ranging from 6.0 V to 30 V, whereas the rest of the device operates from 3.0 V to 3.6 V. The ADF4152HV can be powered down when not in use.Applications Wireless infrastructure Microwave point to point/point to multipoint radios Very small aperture terminal (VSAT) radios Test equipment Private land mobile radios

The ADF4154 is a fractional-N frequency synthesizer that implements local oscillators in the up conversion and down conversion sections of wireless receivers and transmitters. It consists of a low noise digital phase frequency detector (PFD), a precision charge pump, and a programmable reference divider. There is a ?-? based fractional interpolator to allow programmable fractional-N division. The INT, FRAC, and MOD registersdefine an overall N divider (N = (INT + (FRAC/MOD))). In addition, the 4-bit reference counter (R counter) allows selectable REFIN frequencies at the PFD input. A complete phase-locked loop (PLL) can be implemented if the synthesizer is used with an external loop filter and a voltage controlled oscillator (VCO).A key feature of the ADF4154 is the fast-lock mode with a builtintimer. The user can program a predetermined count-down time value so that the PLL will remain in wide bandwidth mode, instead of having to control this time externally.Control of all on-chip registers is via a simple 3-wire interface. The device operates with a power supply ranging from 2.7 V to 3.3 V, and can be powered down when not in use.

The ADF4350 allows implementation of fractional-N orinteger-N phase-locked loop (PLL) frequency synthesizersif used with an external loop filter and external referencefrequency.The ADF4350 has an integrated voltage controlled oscillator(VCO) with a fundamental output frequency ranging from2200 MHz to 4400 MHz. In addition, divide-by-1/2/4/8 or 16circuits allow the user to generate RF output frequencies as lowas 137.5 MHz. For applications that require isolation, the RFoutput stage can be muted. The mute function is both pin- andsoftware-controllable. An auxiliary RF output is also available,which can be powered down if not in use.Control of all the on-chip registers is through a simple 3-wireinterface. The device operates with a power supply rangingfrom 3.0 V to 3.6 V and can be powered down when not in use.Applications Wireless infrastructure (W-CDMA, TD-SCDMA, WiMAX, GSM, PCS, DCS, DECT) Test equipment Wireless LANs, CATV equipment Clock generation

The ADF7012 is a low power FSK/GFSK/OOK/GOOK/ASK UHF transmitter designed for short-range devices (SRDs). The output power, output channels, deviation frequency, and modulation type are programmable by using four, 32-bit registers.The fractional-N PLL and VCO with external inductor enable the user to select any frequency in the 75 MHz to 1 GHz band. The fast lock times of the fractional-N PLL make the ADF7012 suitable in fast frequency hopping systems. The fine frequency deviations available and PLL phase noise performance facilitates narrow-band operation.There are five selectable modulation schemes: binary frequency shift keying (FSK), Gaussian frequency shift keying (GFSK), binary on-off keying (OOK), Gaussian on-off keying (GOOK), and amplitude shift keying (ASK). In the compensation register, the output can be moved in <1 ppm steps so that indirect compensation for frequency error in the crystal reference can be made.A simple 3-wire interface controls the registers. In power-down, the part has a typical quiescent current of <0.1 ?A.APPLICATIONS Low cost wireless data transfer Security systems RF remote controls Wireless metering Secure keyless entry