Analog Devices

The AD9776A/AD9778A/AD9779Aare dual, 12-/14-/16-bit, high dynamic range digital-to-analog converters (DACs) that provide a sample rate of 1 GSPS, permitting a multicarrier generation up to the Nyquist frequency. They include features optimized for direct conversion transmission applications, including complex digital modulation and gain and offset compensation. The DAC outputs are optimized to interface seamlessly with analog quadrature modulators such as the ADL537x FMOD series from Analog Devices, Inc. A 3-wire interface provides for programming/readback of many internal parameters. Full-scale output current can be programmed over a range of 10 mA to 30 mA. The devices are manufactured on an advanced 0.18 μm CMOS process and operate on 1.8 V and 3.3 V supplies for a total power consumption of 1.0 W. They are enclosed in a 100-lead thin quad flat package (TQFP).Product HighlightsUltralow noise and intermodulation distortion (IMD) enable high quality synthesis of wideband signals from baseband to high intermediate frequencies.A proprietary DAC output switching technique enhances dynamic performance.The current outputs are easily configured for various single-ended or differential circuit topologies.CMOS data input interface with adjustable setup and hold.Novel 2×, 4×, and 8× interpolator/coarse complex modulator allows carrier placement anywhere in DAC bandwidth.ApplicationsWireless infrastructure W-CDMA, CDMA2000, TD-SCDMA, WiMax, GSM, LTEDigital high or low IF synthesisInternal digital upconversion capabilityTransmit diversityWideband communications: LMDS/MMDS, point-to-point

TheAD9776A/AD9778A/AD9779Aare dual, 12-/14-/16-bit, high dynamic range digital-to-analog converters (DACs) that provide a sample rate of 1 GSPS, permitting a multicarrier generation up to the Nyquist frequency. They include features optimized for direct conversion transmission applications, including complex digital modulation and gain and offset compensation. The DAC outputs are optimized to interface seamlessly with analog quadrature modulators such as the ADL537x FMOD series from Analog Devices, Inc. A 3-wire interface provides for programming/readback of many internal parameters. Full-scale output current can be programmed over a range of 10 mA to 30 mA. The devices are manufactured on an advanced 0.18 μm CMOS process and operate on 1.8 V and 3.3 V supplies for a total power consumption of 1.0 W. They are enclosed in a 100-lead thin quad flat package (TQFP).Product HighlightsUltralow noise and intermodulation distortion (IMD) enable high quality synthesis of wideband signals from baseband to high intermediate frequencies.A proprietary DAC output switching technique enhances dynamic performance.The current outputs are easily configured for various single-ended or differential circuit topologies.CMOS data input interface with adjustable setup and hold.Novel 2×, 4×, and 8× interpolator/coarse complex modulator allows carrier placement anywhere in DAC bandwidth.ApplicationsWireless infrastructure W-CDMA, CDMA2000, TD-SCDMA, WiMax, GSM, LTEDigital high or low IF synthesisInternal digital upconversion capabilityTransmit diversityWideband communications: LMDS/MMDS, point-to-point

TheAD9776A/AD9778A/AD9779A are dual, 12-/14-/16-bit, high dynamic range digital-to-analog converters (DACs) that provide a sample rate of 1 GSPS, permitting a multicarrier generation up to the Nyquist frequency. They include features optimized for direct conversion transmission applications, including complex digital modulation and gain and offset compensation. The DAC outputs are optimized to interface seamlessly with analog quadrature modulators such as the ADL537x FMOD series from Analog Devices, Inc. A 3-wire interface provides for programming/readback of many internal parameters. Full-scale output current can be programmed over a range of 10 mA to 30 mA. The devices are manufactured on an advanced 0.18 μm CMOS process and operate on 1.8 V and 3.3 V supplies for a total power consumption of 1.0 W. They are enclosed in a 100-lead thin quad flat package (TQFP).Product HighlightsUltralow noise and intermodulation distortion (IMD) enable high quality synthesis of wideband signals from baseband to high intermediate frequencies.A proprietary DAC output switching technique enhances dynamic performance.The current outputs are easily configured for various single-ended or differential circuit topologies.CMOS data input interface with adjustable setup and hold.Novel 2×, 4×, and 8× interpolator/coarse complex modulator allows carrier placement anywhere in DAC bandwidth.ApplicationsWireless infrastructure W-CDMA, CDMA2000, TD-SCDMA, WiMax, GSM, LTEDigital high or low IF synthesisInternal digital upconversion capabilityTransmit diversityWideband communications: LMDS/MMDS, point-to-point

TheAD977/ AD977A is a high speed, low power 16-bit A/D converter that operates from a single 5 V supply. The AD977A has a throughput rate of 200 kSPS whereas the AD977 has a throughput rate of 100 kSPS. Each part contains a successive approximation, switched capacitor ADC, an internal 2.5 V reference, and a high speed serial interface. The ADC is factory calibrated to minimize all linearity errors. The AD977 / AD977A is specified for full scale bipolar input ranges of ±10 V, ±5 V and ±3.3 V, and unipolar ranges of 0 V to 10 V, 0 V to 5 V and 0 V to 4 V.The AD977 / AD977A is comprehensively tested for ac parameters such as SNR and THD, as well as the more traditional dc parameters of offset, gain and linearity.Product HighlightsFast ThroughputThe AD977 / AD977A is a high speed, 16-bit ADC based on a factory calibrated switched capacitor architecture.Single-Supply OperationThe AD977 / AD977A operates from a single 5 V supply and dissipates only 100 mW max.Comprehensive DC and AC SpecificationsIn addition to the traditional specifications of offset, gain and linearity, the AD977 / AD977A is fully tested for SNR and THD.

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 theADL5370.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 HIGHLIGHTSLow 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.APPLICATIONSWireless infrastructureW-CDMA, CDMA2000, TD-SCDMA, WiMAXWideband communicationsLMDS/MMDS, point-to-pointRF signal generators, arbitrary waveform generators

TheAD9780/ AD9781 /AD9783include 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 theADL5370.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 HIGHLIGHTSLow 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.APPLICATIONSWireless infrastructureW-CDMA, CDMA2000, TD-SCDMA, WiMAXWideband communicationsLMDS/MMDS, point-to-pointRF signal generators, arbitrary waveform generators

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 theADL5370.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 HIGHLIGHTSLow 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.APPLICATIONSWireless infrastructureW-CDMA, CDMA2000, TD-SCDMA, WiMAXWideband communicationsLMDS/MMDS, point-to-pointRF signal generators, arbitrary waveform generators

The AD9785/AD9787/AD9788are 12-bit, 14-bit, and 16-bit, high dynamic range TxDAC®devices, respectively, that provide a sample rate of 800 MSPS, permitting multicarrier generation up to the Nyquist frequency. Features are included for optimizing direct conversion transmit applications, including complex digital modulation, as well as gain, phase, and offset compensation. The DAC outputs are optimized to interface seamlessly with analog quadrature modulators, such as the ADL5375 family from Analog Devices, Inc. A serial peripheral interface (SPI) provides for programming and readback of many internal parameters. Full-scale output current can be programmed over a range of 10 mA to 30 mA. The AD9785/AD9787/AD9788 family is manufactured on a 0.18 μm CMOS process and operates from 1.8 V and 3.3 V supplies. It is enclosed in a 100-lead TQFP package.Product HighlightsLow 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).ApplicationsWireless infrastructureW-CDMA, CDMA2000, TD-SCDMA, WiMAX, GSMDigital high or low IF synthesisTransmit diversityWideband communicationsLMDS/MMDS, point-to-point

The AD9786 is the 16-bit member of the latest high-performanceTxDAC+®product family. Designed specifically to address multicarrier communications architectures, it achieves true 16-bit linearity and breakthrough noise and intermodulation distortion performance. This record-breaking performance allows synthesis of multicarrier transmit signals at intermediate frequencies (IFs) of 100 to 300 MHz and beyond. As a result, system designers can eliminate an up-conversion stage and reduce overall parts count, ultimately lowering total system cost. Its 2x/4x/8x selectable interpolation filters ease data rate and output signal reconstruction filter requirements.APPLICATIONSMulticarrier Basestations: CDMA2000, WCDMA, TD-SCDMA, GSM/EDGE, IS-136, TetraInstrumentation: RF Signal Generators, Arbitrary Waveform GeneratorsHDTV transmittersBroadband Wireless systemsDigital Radio LinksSatellite SystemsTxDAC+ is a registered trademark of Analog Devices.