The ADCMP608 is a fast comparator fabricated on XFCB2, an Analog Devices, Inc. proprietary process. This comparator is exceptionally versatile and easy to use. Features include an input range from VEE ? 0.2 V to VCC + 0.2 V, low noise, TTL-/CMOS-compatible output drivers, and shutdown inputs. The device offers 40 ns propagation delays driving a 15 pF load with 10 mV overdrive on 500 ?A typical supply current.A flexible power supply scheme allows the device to operate with a single +2.5 V positive supply and a ?0.2 V to + 2.7 V input signal range up to a +5.5 V positive supply with a ?0.2 V to +5.7 V input signal range.The TTL-/CMOS-compatible output stage is designed to drive up to 15 pF with full rated timing specifications and to degrade in a graceful and linear fashion as additional capacitance is added. The input stage of the comparator offers robust protection against large input overdrive, and the outputs do not phase reverse when the valid input signal range is exceeded.The ADCMP608 is available in a tiny 6-lead SC70 package with a single-ended output and a shutdown pin.APPLICATIONS High speed instrumentation Clock and data signal restoration Logic level shifting or translation High speed line receivers Threshold detection Peak and zero-crossing detectors High speed trigger circuitry Pulse-width modulators Current-/voltage-controlled oscillators

The ADE9000 is a highly accurate, fully integrated, multiphase energy and power quality monitoring device. Superior analog performance and a digital signal processing (DSP) core enable accurate energy monitoring over a wide dynamic range. An integrated high end reference ensures low drift over temperature with a combined drift of less than ?25 ppm/?C maximum for the entire channel including a programmable gain amplifier (PGA) and an analog-to-digital converter (ADC).The ADE9000 offers complete power monitoring capability by providing total as well as fundamental measurements on rms, active, reactive, and apparent powers and energies. Advanced features such as dip and swell monitoring, frequency, phase angle, voltage total harmonic distortion (VTHD), current total harmonic distortion (ITHD), and power factor measurements enable implementation of power quality measurements. The ? cycle rms and 10 cycle rms/12 cycle rms, calculated according to IEC 61000-4-30 Class S, provide instantaneous rms measurements for real-time monitoring.The ADE9000 offers an integrated flexible waveform buffer that stores samples at a fixed data rate of 32 kSPS or 8 kSPS, or a sampling rate that varies based on line frequency to ensure 128 points per line cycle. Resampling simplifies fast Fourier transform (FFT) calculation of at least 50 harmonics in an external processor.The ADE9000 simplifies the implementation of energy and power quality monitoring systems by providing tight integration of acquisition and calculation engines. The integrated ADCs and DSP engine calculate various parameters and provide data through user accessible registers or indicate events through interrupt pins. With seven dedicated ADC channels, the ADE9000 can be used on a 3-phase system or up to three single-phase systems. It supports current transformers (CTs) or Rogowski coils for current measurements. A digital integrator eliminates a discrete integrator required for Rogowski coils.The ADE9000 absorbs most complexity in calculations for a power monitoring system. With a simple host microcontroller, the ADE9000 enables the design of standalone monitoring or protection systems, or low cost nodes uploading data into the cloud.Note that throughout this data sheet, multifunction pins, such as CF4/EVENT/DREADY, are referred to either by the entire pin name or by a single function of the pin, for example, EVENT, when only that function is relevant.Applications Energy and power monitoring Power quality monitoring Protective devices Machine health Smart power distribution units Polyphase energy meters

The ADF4007 is a high frequency divider/PLL synthesizer that can be used in a variety of communications applications. It can operate to 7.5 GHz on the RF side and to 120 MHz at the PFD. It consists of a low noise digital PFD (phase frequency detec-tor), a precision charge pump, and a divider/prescaler. The divider/prescaler value can be set by two external control pins to one of four values (8, 16, 32, or 64). The reference divider is permanently set to 2, allowing an external REFIN frequency of up to 240 MHz.A complete PLL (phase-locked loop) can be implemented if the synthesizer is used with an external loop filter and a VCO (voltage controlled oscillator). Its very high bandwidth means that frequency doublers can be eliminated in many high frequency systems, simplifying system architecture and reducing cost.Applications Satellite communications Broadband wireless access CATV Instrumentation Wireless LANs

The ADF4252 is a dual fractional-N/integer-N frequencysynthesizer that can be used to implement local oscillators (LO)in the upconversion and downconversion sections of wirelessreceivers and transmitters. Both the RF and IF synthesizersconsist of a low noise digital phase frequency detector (PFD), aprecision charge pump, and a programmable reference divider.The RF synthesizer has a ?-?-based fractional interpolator thatallows programmable fractional-N division. The IF synthesizerhas programmable integer-N counters. A complete phase-lockedloop (PLL) can be implemented if the synthesizer is used withan external loop filter and voltage controlled oscillator (VCO).Control of all the on-chip registers is via a simple 3-wire interface.The device operates with a power supply ranging from 2.7 V to3.3 V and can be powered down when not in use.Applications Base stations for mobile radio (GSM, PCS, DCS, CDMA, WCDMA) Wireless handsets (GSM, PCS, DCS, CDMA, WCDMA) Wireless LANs Communications test equipment CATV equipment

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

The?ADP2441/ADP2442 is a constant frequency, current mode control, synchronous, step-down dc-to-dc regulator that is capable of driving loads up to 1 A with excellent line and load regulation characteristics. The ADP2441 operates with a wide input voltage range of 4.5 V to 36 V, which makes it ideal for regulating power from a wide variety of sources. In addition, the ADP2441 has very low minimum on time (50 ns) and is, therefore, suitable for applications requiring a very high step-down ratio.The output voltage can be adjusted from 0.6 V to 0.9 V ? VIN. High efficiency is obtained with integrated low resistance N-channel MOSFETs for both high-side and low-side devices.The switching frequency is adjustable from 300 kHz to 1 MHz with an external resistor. The ADP2441 also has an accurate power-good (PGOOD) open-drain output signal.At light load conditions, the regulator operates in pulse skip mode by skipping pulses and reducing switching losses to improve energy efficiency. In addition, at medium to heavy load conditions, the regulator operates in fixed frequency pulse-width modulation (PWM) mode to reduce electromagnetic interference (EMI).The ADP2441 uses hiccup mode to protect the IC from short circuits or from overcurrent conditions on the output. The external programmable soft start limits inrush current during startup for a wide variety of load capacitances. Other key features include tracking, input undervoltage lockout (UVLO), thermal shutdown (TSD), and precision enable (EN), which can also be used as a logic level shutdown input.The ADP2441 is available in a 3 mm ? 3 mm, 12-lead LFCSP package and is rated for a junction temperature range of ?40?C to +125?C.Applications Point of load applications Distributed power systems Industrial control supplies Standard rail conversion to 24 V/12 V/5 V/3.3 V

The ADP5023 combines two high performance buck regulators and one low dropout (LDO) regulator in a small, 24-lead 4 mm ? 4 mm LFCSP to meet demanding performance and board space requirements.The high switching frequency of the buck regulators enables tiny multilayer external components and minimizes the board space. When the MODE pin is set high, the buck regulators operate in forced PWM mode. When the MODE pin is set low, the buck regulators operate in PWM mode when the load current is?above a predefined threshold. When the load current falls below a predefined threshold, the regulator operates in power save mode (PSM) improving the light-load efficiency.The two bucks operate out of phase to reduce the input capacitor requirement. The low quiescent current, low dropout voltage, and wide input voltage range of the ADP5023 LDO extends the battery life of portable devices. The ADP5023 LDO maintains power supply rejection greater than 60 dB for frequencies as high as 10 kHz while operating with a low headroom voltage.Regulators in the ADP5023 are activated though dedicated enable pins. The default output voltages can be externally set in the adjustable version or factory programmable to a wide range of preset values in the fixed voltage version.Applications Power for processors, ASIC, FPGAs, and RF chipsets Portable instrumentation and medical devices Space constrained devices

The ADP5056 combines three high performance buck regulatorsin a 43-terminal land grid array (LGA) package that meets thedemanding performance and board space requirements. Thedevice enables direct connection to high input voltages up to18 V with no preregulators.All channels integrate both high-side and low-side power metaloxide semiconductor field effect transistors (MOSFETs) to achievean efficiency optimized solution. Channel 1 and Channel 2deliver a programmable output current of 3.5 A or 7 A, orprovide a single output with up to 14 A of current in paralleloperation. Channel 3 delivers a programmable output currentof 1.5 A or 3 A.The switching frequency of the ADP5056 can be programmedor synchronized to an external clock. The ADP5056 contains anenable pin (ENx) on each channel for easy power-up sequencingor adjustable undervoltage lockout (UVLO) threshold.The ADP5056 integrates start-up/shutdown sequence control,forced pulse-width modulation/power saving mode (FPWM/PSM)selection, an output discharge switch, and a power-good signal.The ADP5056 is rated at ?40?C to +150?C junction temperature.Note that throughout this data sheet, multifunction pins, suchas SYNC/MODE, are referred to either by the entire pin nameor by a single function of the pin, for example, SYNC, whenonly that function is relevant. Small cell base stations Field programmable gate array (FPGA) and processorapplications Security and surveillance Medical applications

The ADP5061 charger is fully compliant with USB 3.0 and the USB Battery Charging Specification 1.2 and enables charging via the mini USB VBUS pin from a wall charger, car charger, or USB host port.The ADP5061 operates from a 4 V to 6.7 V input voltage range but is tolerant of voltages up to 20 V. The 20 V voltage tolerance alleviates the concerns about the USB bus spiking during disconnect or connect scenarios.The ADP5061 features an internal FET between the linear charger output and the battery. This permits battery isolation and, hence, system powering under a dead battery or no batteryscenario, which allows for immediate system function on connection to a USB power supply.Based on the type of USB source, which is detected by an external USB detection chip, the ADP5061 can be set to apply the correct current limit for optimal charging and USB compliance.The ADP5061 has three factory programmable digital input/output pins that provide maximum flexibility for different systems. These digital input/output pins permit combinations of features such as, input current limits, charging enable and disable, charging current limits, and a dedicated interrupt output pin. APPLICATIONS Digital still cameras Digital video cameras Single cell Li-Ion portable equipment PDAs, audio, GPS devices Portable medical devices Mobile phones

The ADP5070 is a dual high performance dc-to-dc regulator that generates independently regulated positive and negative rails.The input voltage range of 2.85 V to 15 V supports a wide variety of applications. The integrated main switch in both regulators enables generation of an adjustable positive output voltage up to +39 V and a negative output voltage down to ?39 V below input voltage.The ADP5070 operates at a pin selected 1.2 MHz/2.4 MHz switching frequency. The ADP5070 can synchronize with an external oscillator from 1.0 MHz to 2.6 MHz to ease noise filtering in sensitive applications. Both regulators implement programmable slew rate control circuitry for the MOSFET driver stage to reduce electromagnetic interference (EMI).Flexible start-up sequencing is provided with the options of manual enable, simultaneous mode, positive supply first, and negative supply first.The ADP5070 includes a fixed internal or resistor programmable soft start timer to prevent inrush current at power-up. During shutdown, both regulators completely disconnect the loads from the input supply to provide a true shutdown.Other key safety features in the ADP5070 include overcurrent protection (OCP), overvoltage protection (OVP), thermal shutdown (TSD), and input undervoltage lockout (UVLO).The ADP5070 is available in a 20-lead LFCSP or in a 20-lead TSSOP and is rated for a ?40?C to +125?C junction temperature range.Applications Bipolar amplifiers, ADCs, DACs and multiplexers Charge-coupled device (CCD) bias supply Optical module supply RF power amplifier (PA) bias