The AD9740 is a 10-bit resolution, wideband, third generation member of the TxDAC series of high performance, low power CMOS digital-to-analog converters (DACs). The TxDAC family, consisting of pin-compatible 8-, 10-, 12-, and 14-bit DACs, is specifically optimized for the transmit signal path of communication systems. All of the devices share the same interface options, small outline package, and pinout, providing an upward or downward component selection path based on performance, resolution, and cost. The AD9740 offers exceptional ac and dc performance while supporting update rates up to 210 MSPS. The AD9740?s low power dissipation makes it well suited for portable and low power applications. Its power dissipation can be further reduced to 60 mW with a slight degradation in performance by lowering the full-scale current output. In addition, a power-down mode reduces the standby power dissipation to approximately 15 mW. A segmented current source architecture is combined with a proprietary switching technique to reduce spurious components and enhance dynamic performance. Edge-triggered input latches and a 1.2 V temperature-compensated band gap reference have been integrated to provide a complete monolithic DAC solution. The digital inputs support 3 V CMOS logic families. PRODUCT HIGHLIGHTS The AD9740 is the 10-bit member of the pin-compatible TxDAC family, which offers excellent INL and DNL performance. Data input supports twos complement or straight binary data coding. High speed, single-ended CMOS clock input supports 210 MSPS conversion rate. Low power: Complete CMOS DAC function operates on 135 mW from a 2.7 V to 3.6 V single supply. The DAC full-scale current can be reduced for lower power operation, and a sleep mode is provided for low power idle periods. On-chip voltage reference: The AD9740 includes a 1.2 V temperature-compensated band gap voltage reference. Industry-standard 28-lead SOIC, 28-lead TSSOP, and 32-lead LFCSP packages.?APPLICATIONSWideband communication transmit channel Direct IF Base stations Wireless local loops Digital radio links Direct digital synthesis (DDS) Instrumentation

The AD97441 is a 14-bit resolution, wideband, third generation member of the TxDAC series of high performance, low power CMOS digital-to-analog converters (DACs). The TxDAC family, consisting of pin-compatible 8-, 10-, 12-, and 14-bit DACs, is specifically optimized for the transmit signal path of communication systems. All of the devices share the same interface options, small outline package, and pinout, providing an upward or downward component selection path based on performance, resolution, and cost. The AD9744 offers exceptional ac and dc performance while supporting update rates up to 210 MSPS. The AD9744?s low power dissipation makes it well suited for portable and low power applications. Its power dissipation can be further reduced to a mere 60 mW with a slight degradation in performance by lowering the full-scale current output. Also, a power-down mode reduces the standby power dissipation to approximately 15 mW. A segmented current source architecture is combined with a proprietary switching technique to reduce spurious components and enhance dynamic performance. Edge-triggered input latches and a 1.2 V temperature compensated band gap reference have been integrated to provide a complete monolithic DAC solution. The digital inputs support 3 V CMOS logic families. Product Highlights The AD9744 is the 14-bit member of the pin compatible TxDAC family, which offers excellent INL and DNL performance. Data input supports twos complement or straight binary data coding. High speed, single-ended CMOS clock input supports 210 MSPS conversion rate. Low power: Complete CMOS DAC function operates on 135 mW from a 2.7 V to 3.6 V single supply. The DAC full-scale current can be reduced for lower power operation, and a sleep mode is provided for low power idle periods. On-chip voltage reference: The AD9744 includes a 1.2 V temperature compensated band gap voltage reference. Industry-standard 28-lead SOIC, 28-lead TSSOP, and 32-lead LFCSP packages.Applications Wideband communication transmit channel Direct IFs Base stations Wireless local loops Digital radio links Direct digital synthesis (DDS) Instrumentation

The AD9780 / AD9781 / AD9783 include pin-compatible, high dynamic range, dual digital-to-analog converters (DACs) with 12-/14-/16-bit resolutions, and sample rates of up to 500 MSPS. The devices include specific features for direct conversion transmit applications, including gain and offset compensation, and they interface seamlessly with analog quadrature modulators such as the?ADL5370.A proprietary, dynamic output architecture permits synthesis of analog outputs even above Nyquist by shifting energy away from the fundamental and into the image frequency.Full programmability is provided through a serial peripheral interface (SPI) port. Some pin-programmable features are also offered for those applications without a controller.PRODUCT HIGHLIGHTS Low noise and intermodulation distortion (IMD) enable high quality synthesis of wideband signals. Proprietary switching output for enhanced dynamic performance. Programmable current outputs and dual auxiliary DACs provide flexibility and system enhancements.APPLICATIONS Wireless infrastructure W-CDMA, CDMA2000, TD-SCDMA, WiMAX Wideband communications LMDS/MMDS, point-to-point RF signal generators, arbitrary waveform generators

The AD9785/AD9787/AD9788 are 12-bit, 14-bit, and 16-bit,high dynamic range TxDAC? devices, respectively, that providea sample rate of 800 MSPS, permitting multicarrier generationup to the Nyquist frequency. Features are included for optimizingdirect conversion transmit applications, including complexdigital modulation, as well as gain, phase, and offset compensation.The DAC outputs are optimized to interface seamlesslywith analog quadrature modulators, such as the ADL5375family from Analog Devices, Inc. A serial peripheral interface(SPI) provides for programming and readback of many internalparameters. Full-scale output current can be programmed overa range of 10 mA to 30 mA. The AD9785/AD9787/AD9788family is manufactured on a 0.18 ?m CMOS process and operatesfrom 1.8 V and 3.3 V supplies. It is enclosed in a 100-lead TQFPpackage.Product Highlights Low noise and intermodulation distortion (IMD) enable high quality synthesis of wideband signals from baseband to high intermediate frequencies. Proprietary DAC output switching technique enhances dynamic performance. CMOS data input interface with adjustable setup and hold. Low power complex 32-bit numerically controlled oscillators (NCOs).Applications Wireless infrastructure W-CDMA, CDMA2000, TD-SCDMA, WiMAX, GSM Digital high or low IF synthesis Transmit diversity Wideband communications LMDS/MMDS, point-to-point

The AD9864 is a general-purpose IF subsystem that digitizes alow level, 10 MHz to 300 MHz IF input with a signal bandwidthranging from 6.8 kHz to 270 kHz. The signal chain of the AD9864consists of a low noise amplifier (LNA), a mixer, a band-pass ?-?analog-to-digital converter (ADC), and a decimation filter withprogrammable decimation factor. An automatic gain control(AGC) circuit gives the AD9864 12 dB of continuous gainadjustment. Auxiliary blocks include both clock and localoscillator (LO) synthesizers.The high dynamic range of the AD9864 and inherent antialiasingprovided by the band-pass ?-? converter allow the device to copewith blocking signals up to 95 dB stronger than the desired signal.This attribute often reduces the cost of a radio by reducing IFfiltering requirements. Also, it enables multimode radios of varyingchannel bandwidths, allowing the IF filter to be specified for thelargest channel bandwidth.The SPI port programs numerous parameters of the AD9864,allowing the device to be optimized for any given application.Programmable parameters include synthesizer divide ratios, AGCattenuation and attack/decay time, received signal strength level,decimation factor, output data format, 16 dB attenuator, and theselected bias currents.The AD9864 is available in a 48-lead LFCSP package and operatesfrom a single 2.7 V to 3.6 V supply. The total power consumptionis typically 56 mW and a power-down mode is provided viaserial interfacing.APPLICATIONS Multimode narrow-band radio products Analog/digital UHF/VHF FDMA receivers TETRA, APCO25, GSM/EDGE Portable and mobile radio products SATCOM terminals

The AD9911 is a complete direct digital synthesizer (DDS).This device includes a high speed DAC with excellent widebandand narrowband spurious-free dynamic range (SFDR) as well asthree auxiliary DDS cores without assigned digital-to-analogconverters (DACs). These auxiliary channels are used for spurreduction, multitone generation, or test-tone modulation.The AD9911 is the first DDS to incorporate SpurKillertechnology and multitone generation capability. Multitonemode enables the generation up to four concurrent carriers;frequency, phase and amplitude can be independentlyprogrammed. Multitone generation can be used for systemtests, such as inter-modulation distortion and receiver blockersensitivity. SpurKilling enables customers to improve SFDRperformance by reducing the magnitude of harmoniccomponents and/or the aliases of those harmonic components.Test-tone modulation efficiently enables sine wave modulationof amplitude on the output signal using one of the auxiliaryDDS cores.The AD9911 can perform modulation of frequency, phase, oramplitude (FSK, PSK, ASK). Modulation is implemented bystoring profiles in the register bank and applying data to theprofile pins. In addition, the AD9911 supports linear sweep offrequency, phase, or amplitude for applications such as radarand instrumentation.The DDS acts as a high resolution frequency divider with theREF_CLK as the input and the DAC providing the output. TheREF_CLK input can be driven directly or used in combinationwith an integrated REF_CLK multiplier (PLL). The REF_CLKinput also features an oscillator circuit to support an externalcrystal as the REF_CLK source. The crystal can be used incombination with the REF_CLK multiplier.The AD9911 I/O port offers multiple configurations to providesignificant flexibility. The I/O port offers an SPI-compatiblemode of operation that is virtually identical to the SPI operationfound in earlier Analog Devices DDS products.Flexibility is provided by four data pins (Pin SDIO_0,Pin SDIO_1, Pin SDIO_2, and Pin SDIO_3) that allow fourprogrammable modes of I/O operation.The DAC output is supply referenced and must be terminatedinto AVDD by a resistor and an AVDD center-tapped transformer.The DAC has its own programmable reference to enabledifferent full-scale currents.The DDS core (the AVDD pins and the DVDD pins) is poweredby a 1.8 V supply. The digital I/O interface (SPI) operates at3.3 V and requires that the Pin DVDD_I/O (Pin 49) beconnected to 3.3 V. Applications Agile local oscillator Test and measurement equipment Commercial and amateur radio exciter Radar and sonar Test-tone generation Fast frequency hopping Clock generation

The AD9956 is Analog Devices?s first AgileRF synthesizer.The device is comprised of a DDS and PLL circuitry. The DDSfeatures a 14-bit DAC operating up to 400 MSPS and a 48-bitfrequency tuning word. The PLL Circuitry includes a phasedetector with scaleable 200 MHz inputs (pre-scalar inputsoperate up to 650 MHz) and digital control over the chargepump current. The device also includes a 650 MHz PECL driverwith programmable slew rates.The AD9956 uses advanced DDStechnology, an internal high-speed, high performance D/Aconverter and an advance phase-detector/charge pumpcombination to enable the synthesis of digitally-programmable,frequency-agile analog output sinusoidal waveforms up to2.7 GHz. The AD9956 is designed to provide fast frequencyhopping and fine tuning resolution (48-bit frequency tuningword). Information is loaded into the AD9956 via a serial I/Oport which has a device write speed of 25 MBit/sec. The AD9956DDS block also supports a user defined linear sweep mode ofoperation.The AD9956 is specified to operate over the extendedautomotive range of ?40?C to +125?C.Applications Agile LO frequency synthesis FM chirp source for radar and scanning systems Automotive radars Test and measurement equipment Acousto-optic device drivers

The ADP1032 is a high performance, isolated micropower management unit (PMU) that combines an isolated flyback and a dc-to-dc regulator providing two isolated power rails. Additionally, the ADP1032 contains four high speed serial peripheral interface (SPI) isolation channels and three general-purpose isolators for channel to channel applications where low power dissipation and small solution size is required. Operating over an input voltage range of 4.5 V to 60 V, the ADP1032 generates isolated output voltages of 6 V to 28 V (adjustable version) or 24 V (fixed version) for VOUT1, and factory programmable voltages of 5.15 V, 5.0 V, or 3.3 V for VOUT2.?By default, the ADP1032 flyback regulator operates at a 250 kHz switching frequency, and the buck regulator operates at 125 kHz.?The two regulators are phase shifted relative to each other to reduce electromagnetic interference (EMI). The ADP1032 can be driven by an external oscillator in the range of 350 kHz to 750 kHz to ease noise filtering in sensitive applications.?The digital isolators integrated in the ADP1032 use Analog Devices, Inc., iCoupler? chip scale transformer technology, optimized for low power and low radiated emissions. The ADP1032 is available in a 9 mm ? 7 mm, 41-lead LFCSP and is rated for a ?40?C to +125?C operating junction temperature range.?

The ADP1050 is an advanced digital controller with a PMBus? interface targeting high density, high efficiency dc-to-dc power conversion. This controller implements voltage mode control with high speed, input voltage feedforward operation for enhanced transient and noise performance. The ADP1050 has four programmable pulse-width modulation (PWM) outputs capable of controlling most high efficiency power supply topologies, with the added control of synchronous rectification (SR).The ADP1050 implements several features to enable a robust system of parallel and redundant operation for customers who require high availability. The device provides synchronization, prebias startup, and conditional overvoltage techniques to identify and safely shut down an erroneous power supply in parallel operation mode.The ADP1050 is based on flexible state machine architecture and is programmed using an intuitive graphical user interface (GUI). The easy to use GUI reduces design cycle time and results in a robust, hardware coded system loaded into the built-in EEPROM. The small size (4 mm ? 4 mm) of the LFCSP package makes the ADP1050 ideal for ultracompact, isolated dc-to-dc power module or embedded power designs.Applications High density, isolated dc-to-dc power supplies Intermediate bus converters High availability parallel power systems Server, storage, industrial, networking, and communications infrastructure

The ADP1052 is an advanced digital controller with a PMBus? interface targeting high density, high efficiency, dc-to-dc power conversion. This controller implements voltage mode control with high speed, input line feedforward for enhanced transient and improved noise performance. The ADP1052 has six programmable pulse-width modulation (PWM) outputs capable of controlling most high efficiency power supply topologies, with added control of synchronous rectification (SR). The device includes adaptive dead time compensation to improve efficiency over the load range, and programmable light load mode operation, combined with low power consumption, to reduce system standby power losses.The ADP1052 implements several features to enable a robust system of parallel and redundant operation for customers that require high availability or parallel connection. The device provides synchronization, reverse current protection, prebias startup, accurate current sharing between power supplies, and conditional overvoltage techniques to identify and safely shut down an erroneous power supply in parallel operation mode.The ADP1052 is based on flexible state machine architecture and is programmed using an intuitive GUI. The easy to use interface reduces design cycle time and results in a robust, hardware coded system loaded into the built-in EEPROM. The small size (4 mm ? 4 mm) LFCSP package makes the ADP1052 ideal for ultracompact, isolated dc-to-dc power module or embedded power designs.APPLICATIONS High density isolated dc-to-dc power supplies Intermediate bus converters High availability parallel power systems Server, storage, industrial, networking, and communications infrastructure