The LTM4650-1A/LTM4650-1B is dual 25A or single 50A output step-down ?Module? (power module) regulator with ?0.8% (LTM4650-1A) and ?1.5% (LTM4650-1B) total DC output error with ?3% transient output error. Included in the package are the switching controller, power FETs, inductors, and all supporting components. External compensation allows for fast transient response to minimize output capacitance when powering FPGAs, ASICs, and processors. With synchronized multiphase parallel current sharing, six LTM4650-1 devices can deliver up to 300A. The LTM4650-1 is offered in a 16mm ? 16mm ? 5.01 BGA package, with SnPb (BGA) or RoHS compliant terminal finish. VIN Range VOUT Range Comp DC VOUT Accy LTM4650 4.5V to 15V 0.6V to 1.8V Internal 1.5% LTM4650-1B 4.5V to 15V 0.6V to 1.8V External 1.5% LTM4650-1A 4.5V to 15V 0.6V to 1.8V External 0.8% LTM4650A 4.5V to 16V 0.6V to 5.5V Internal 1% LTM4650A-1 4.5V to 16V 0.6V to 5.5V External 1% Applications FPGA, ASIC, ?Processor Core Voltage Regulation Information, Communication Systems

The LTC3458L is a high efficiency, current mode, fixed frequency, step up DC/DC converter with true output disconnect and inrush current limiting. The LTC3458L is rated for up to 6V output and includes a 0.2? N-channel MOSFET switch and a 0.3? P-channel MOSFET synchronous rectifier. The LTC3458L is well suited for battery powered applications and includes programmable output voltage, switching frequency and loop compensation. The oscillator frequency can be set up to 1.5MHz or synchronized to an external clock.Quiescent current is only 12?A during Burst Mode operation maximizing battery life in portable applications. The Burst Mode current threshold, peak current limit, and softstart are externally programmable. Other features include <1?A shutdown current, antiringing control, and thermal limit. The LTC3458L is available in a low profile (0.75mm), 4mm ? 3mm 12-pin DFN package.Protected by U.S. Patents including 5481178, 6304066, 6580258, 5511131, 6498466 Vout Range Switch Current LTC3458 2.0V to 7.5V 1.4A LTC3458L 2.0V to 6.0V 1.7A Applications Point-of-Load Regulators USB VBUS Power Portable GPS MP3 Players

The ADF5610 allows implementation of fractional-N or Integer N phase-locked loop (PLL) frequency synthesizers when used with an external loop filter and an external reference source. The wideband microwave voltage controlled oscillator (VCO) design permits frequency operation from 7300 MHz to 14600 MHz at a single radio frequency (RF) output. A series of frequency dividers with a differential frequency output allows operation from 57 MHz to 14600 MHz. Analog and digital power supplies for the PLL circuitry range from 3.1 V to 3.5 V, and the VCO supplies are between 4.75 V and 5.25 V. The charge pump supply voltage can be extended up to 3.6 V for improved frequency band overlap and extended upper frequency range.The ADF5610 has an integrated VCO with a fundamental frequency of 3650 MHz to 7300 MHz. These frequencies are internally doubled and routed to the RFOUT pin. An additional differential output allows the doubled VCO frequency to be divided by 1, 2, 4, 8, 16, 32, 64, or 128, allowing the user to generate RF output frequencies as low as 57 MHz. A simple 3?wire serial port interface (SPI) provides control of all on-chip registers. To conserve power, this divider block can be disabled when not needed through the SPI interface. Likewise, the output power for both the single-ended output and the differential output are programmable via the VCO register settings. The ADF5610 also contains various power-down modes for the VCO circuitry and PLL circuitry.The integrated phase detector (PD) and delta-sigma (?-?) modulator, capable of operating at up to 100 MHz, permit wide loop bandwidths and fast frequency tuning with a typical spurious level of ?100 dBc.With phase noise levels from ?115 dBc/Hz at 7.3 GHz to ?109 dBc/Hz at 14.6 GHz, the ADF5610 is equipped to minimize blocker effects, and to improve receiver sensitivity and transmitter spectral purity. The low phase noise floor eliminates any contribution to modulator and mixer noise floor in transmitter applications.The ADF5610 is a PLL with integrated VCO. The device features an innovative programmable performance technology that enables the ADF5610 to tailor current consumption and corresponding noise performance to individual applications by selecting either a low current consumption mode or a high performance mode for improved phase noise performance.Additional features of the ADF5610 include approximately 3 dBof RFOUT gain control in 1.5 dB steps and 5 dB of control onthe differential port in approximately 2.5 dB steps. Finally, the ?-?modulator with exact frequency mode enables users to generateoutput frequencies with 0 Hz frequency error.APPLICATIONSMilitary and defenseTest equipmentClock generationWireless infrastructureSatellite and very small aperture terminal (VSAT)Microwave radio

The ADuC7019?/?ADuC7020?/ ADuC7021 /?ADuC7022?/?ADuC7024?/?ADuC7025?/ ADuC7026?/?ADuC7027?/?ADuC7028?/?ADuC7029 are fully integrated,1 MSPS, 12-bit data acquisition systems incorporating highperformance multichannel ADCs, 16-bit/32-bit MCUs, andFlash?/EE memory on a single chip.The ADC consists of up to 12 single-ended inputs. An additionalfour inputs are available but are multiplexed with the four DACoutput pins. The four DAC outputs are available only on certainmodels (ADuC7020, ADuC7026, ADuC7028, and ADuC7029).However, in many cases where the DAC outputs are not present,these pins can still be used as additional ADC inputs, giving amaximum of 16 ADC input channels. The ADC can operate insingle-ended or differential input mode. The ADC input voltageis 0 V to VREF. A low drift band gap reference, temperature sensor,and voltage comparator complete the ADC peripheral set.Depending on the part model, up to four buffered voltageoutput DACs are available on-chip. The DAC output range isprogrammable to one of three voltage ranges.The devices operate from an on-chip oscillator and a PLLgenerating an internal high frequency clock of 41.78 MHz(UCLK). This clock is routed through a programmable clockdivider from which the MCU core clock operating frequencyis generated. The microcontroller core is an ARM7TDMI?,16-bit/32-bit RISC machine, which offers up to 41 MIPS peakperformance. Eight kilobytes of SRAM and 62 kilobytes ofnonvolatile Flash/EE memory are provided on-chip. TheARM7TDMI core views all memory and registers as a singlelinear array.On-chip factory firmware supports in-circuit serial downloadvia the UART or I2C serial interface port; nonintrusive emulationis also supported via the JTAG interface. These features areincorporated into a low cost QuickStart? development systemsupporting this MicroConverter? family.The parts operate from 2.7 V to 3.6 V and are specified over anindustrial temperature range of ?40?C to +125?C. Whenoperating at 41.78 MHz, the power dissipation is typically120 mW. The ADuC7019 / ADuC7020 / ADuC7021 /? ADuC7022 / ADuC7024 / ADuC7025 / ADuC7026 / ADuC7027 / ADuC7028 / ADuC7029 areavailable in a variety of memory models and packages (seeOrdering Guide).APPLICATIONS Industrial control and automation systems Smart sensors, precision instrumentation Base station systems, optical networking

The AD9255 is a 14-bit, 125 MSPS analog-to-digital converter (ADC). The AD9255 is designed to support communications applications where high performance combined with low cost, small size, and versatility is desired.The ADC core features a multistage, differential pipelined architecture with integrated output error correction logic to provide 14-bit accuracy at 125 MSPS data rates and guarantees no missing codes over the full operating temperature range.The ADC features a wide bandwidth differential sample-and-hold analog input amplifier supporting a variety of user-selectable input ranges. It is suitable for multiplexed systems that switch full-scale voltage levels in successive channels and for sampling single-channel inputs at frequencies well beyond the Nyquist rate. Combined with power and cost savings over previously available ADCs, the AD9255 is suitable for applications in communications, instrumentation, and medical imaging.A differential clock input controls all internal conversion cycles. A duty cycle stabilizer provides the means to compensate for variations in the ADC clock duty cycle, allowing the converters to maintain excellent performance over a wide range of input clock duty cycles. An integrated voltage reference eases design considerations.The ADC output data format is either parallel 1.8 V CMOS or LVDS (DDR). A data output clock is provided to ensure proper latch timing with receiving logic.Programming for setup and control is accomplished using a 3-wire SPI-compatible serial interface. Flexible power-down options allow significant power savings, when desired. An optional on-chip dither function is available to improve SFDR performance with low power analog input signals.The AD9255 is available in a Pb-free, 48-lead LFCSP and is specified over the industrial temperature range of ?40?C to +85?C.PRODUCT HIGHLIGHTS On-chip dither option for improved SFDR performance with low power analog input. Proprietary differential input that maintains excellent SNR performance for input frequencies up to 300 MHz. Operation from a single 1.8 V supply and a separate digital output driver supply accommodating 1.8 V CMOS or LVDS outputs. Standard serial port interface (SPI) that supports various product features and functions, such as data formatting (offset binary, twos complement, or gray coding), enabling the clock DCS, power-down, test modes, and voltage reference mode. ?Pin compatibility with the AD9265, allowing a simple migration up to 16 bits.Applications Communications Multimode digital receivers (3G) GSM, EDGE, W-CDMA, LTE, CDMA2000, WiMAX, and TD-SCDMA Smart antenna systems General-purpose software radios Broadband data applications Ultrasound equipment

DC1488A-A: Demo Board for the LTC2634-12 Quad 12-Rail-to-Rail DACs with 10ppm/°C Reference.

The LTC2499 is a 16-channel (eight differential), 24-bit, No Latency ??? ADC with Easy Drive technology and a 2-wire, I2C interface. The patented sampling scheme eliminates dynamic input current errors and the shortcomings of on-chip buffering through automatic cancellation of differential input current. This allows large external source impedances and rail-to-rail input signals to be directly digitized while maintaining exceptional DC accuracy. The LTC2499 includes a high accuracy, temperature sensor and an integrated oscillator. This device can be configured to measure an external signal (from combinations of 16 analog input channels operating in single-ended or differential modes) or its internal temperature sensor. The integrated temperature sensor offers 1/30th?C resolution and 2?C absolute accuracy. The LTC2499 allows a wide common mode input range (0V to VCC), independent of the reference voltage. Any combination of single-ended or differential inputs can be selected and the first conversion, after a new channel is selected, is valid. Access to the multiplexer output enables optional external amplifiers to be shared between all analog inputs and auto calibration continuously removes their associated offset and drift.Applications Direct Sensor Digitizer Direct Temperature Measurement Instrumentation Industrial Process Control

Demonstration circuit 2481B-A is a high efficiency, high density, μModule® regulator with 4.5V to 15V input range. The output voltage is adjustable from 0.6V to 1.8V, and it can supply 86A maximum load current. The demo board has 1× LTM4677 and 1× LTM4650 μModule regulators. The LTM4677 is a dual 18A or single 36A step-down regulator with PMBus power system management, and the LTM4650 is a dual 25A or single 50A step-down regulator. Please see LTM4677 and LTM4650 data sheets for more detailed information. DC2481B-A powers up to default settings and produce power based on configuration resistors without the need for any serial bus communication. This allows easy evaluation of the DC/DC converter. To fully explore the extensive power system management features of the part, download the GUI software LTpowerPlay® onto your PC and use Analog Devices I2C/SMBus/PMBus dongle DC1613A to connect to the board. LTpowerPlay allows the user to reconfigure the part on the fly and store the configuration in EEPROM, view telemetry of voltage, current, temperature and fault status. For more details and instructions of LTpowerPlay, please refer to LTpowerPlay Software GUI.

The ADP7185 is a complementary metal oxide semiconductor(CMOS), low dropout (LDO) linear regulator that operatesfrom ?2.0 V to ?5.5 V and provides up to ?500 mA of output current. This high output current LDO is ideal for regulation of high performance analog and mixed signal circuits operatingfrom ?0.5 V down to ?4.5 V. Using an advanced proprietaryarchitecture, the ADP7185 provides high power supple rejectionratio (PSRR) and low noise, and it achieves excellent line and loadtransient response with a small 4.7 ?F ceramic output capacitor.The ADP7185 is available in 15 fixed output voltage options.The following voltages are available from stock: ?0.5 V, ?1.0 V,?1.2 V, ?1.5 V, ?1.8 V, ?2.0 V, ?2.5 V, ?3.0 V, and ?3.3 V.Additional voltages available by special order are ?0.8 V, ?0.9 V, ?1.3 V, ?2.8 V, ?4.2 V, and ?4.5 V. An adjustable version is also available which allows output voltages that range from ?0.5 V to ?VIN + 0.5 V with an external feedback divider.The enable logic feature is capable of interfacing with positive or negative logic levels for maximum flexibility.The ADP7185 regulator output noise is 4 ?V rms independent of the output voltage. The ADP7185 is available in an 8-lead, 2 mm ? 2 mm LFCSP, making it not only a very compact solution but also providing excellent thermal performance for applications requiring up to ?500 mA of output current in a small, low profile footprint.Applications Regulation to noise sensitive applications: analog-to-digital converters (ADCs), digital-to-analog converters (DACs), precision amplifiers Communications and infrastructure Medical and healthcare Industrial and instrumentation

The ADRF6821 is a highly integrated, dual radio frequency (RF) input, zero intermediate frequency (IF)/low IF RFIC receiverwith a quadrature demodulator, digital step attenuator (DSA),IF linear amplifiers, an integrated, fractional-N phase-locked loop (PLL), and a low phase noise, multicore, voltage controlled oscillator (VCO). The RFIC is ideally suited for communication digital predistortion (DPD) systems.The high isolation 2:1 RF switch and on-chip wideband RFbalun enable the ADRF6821 to support two single-ended, 50 ? terminated RF inputs. A programmable attenuator ensures anoptimal differential RF input level to the high linearity demodulatorcore. The integrated attenuator offers an attenuation range of 15 dB with a step size of 1 dB. High linearity IF amplifiers follow the demodulator and provide an interface to the next componentin the chain, typically an analog-to-digital converter (ADC).The ADRF6821 offers two alternatives for generating thedifferential local oscillator (LO) input signal: internally viathe on-chip fractional-N synthesizer with low phase noiseVCOs or externally via a low phase noise LO signal. Theintegrated synthesizer enables continuous LO coverage from 450 MHz to 2800 MHz. The PLL reference input supports awide frequency range and includes integrated reference dividers before the phase frequency detector (PFD).When selected, the output of the internal fractional-N synthesizeris applied to a divide by 2, quadrature phase splitter. From theexternal LO path, a 2? LO signal can be used with the divide by 2,quadrature phase splitter to generate the quadrature LO inputs to the mixers.The ADRF6821 is fabricated using an advanced silicon germanium(SiGe), bipolar complementary metal oxide semiconductor(BiCMOS) process. It is available in a 56-lead, RoHS compliant,8 mm ? 8 mm LFCSP package with an exposed pad. Performanceis specified over the ?40?C to +105?C case temperature range.Applications Cellular W-CDMA/GSM/LTE DPD receivers? Microwave, point to point radios