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 μm 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 ADA4091-2 dual and ADA4091-4 quad are micropower,single-supply, 1.2 MHz bandwidth amplifiers featuring rail-torailinputs and outputs. They are guaranteed to operate from a+3.0 V to +30 V single supply as well as from ±1.5 V to ±15 Vdual supplies.The ADA4091-2 / ADA4091-4 features a unique input stage thatallows the input voltage to exceed either supply safely without anyphase reversal or latch-up; this is called overvoltage protection(OVP).Applications for these amplifiers include portable telecommunicationsequipment, power supply control and protection,and interface for transducers with wide output ranges. Sensorsrequiring a rail-to-rail input amplifier include Hall effect, piezoelectric,and resistive transducers.The ability to swing rail-to-rail at both the input and output enablesdesigners, for example, to build multistage filters in single-supplysystems and to maintain high signal-to-noise ratios (SNR).The ADA4091-2 / ADA4091-4 is specified over the extended industrialtemperature range of −40°C to +125°C. The ADA4091-2 /ADA4091-4 is part of the growing selection of 36 V, low poweroperational amplifiers from Analog Devices, Inc.,The ADA4091-2 is available in 8-lead, plastic SOIC and 8-leadLFCSP packages. The ADA4091-4 is available in 14–lead TSSOPand 16-lead LFCSP surface-mount packages.Applications Industrial process control Battery-powered instrumentation Power supply control and protection Telecommunications Remote sensors Low voltage strain gage amplifiers DAC output amplifiers

The ADA4505-1/ADA4505-2/ADA4505-4 are single, dual, and quad micropower amplifiers featuring rail-to-rail input and output swings while operating from a single 1.8 V to 5 V power supply or from dual ±0.9 V to ±2.5 V power supplies.Employing a new circuit technology, these low cost amplifiers offer zero input crossover distortion (excellent PSRR and CMRR performance) and very low bias current, while operating with a supply current of less than 10 μA per amplifier.This combination of features makes the ADA4505-x amplifiers ideal choices for battery-powered applications because they minimize errors due to power supply voltage variations over the lifetime of the battery and maintain high CMRR even for a rail-to-rail op amp.Remote battery-powered sensors, handheld instrumentation and consumer equipment, hazard detectors (for example, smoke, fire, and gas), and patient monitors can benefit from the features of the ADA4505-x amplifiers.The ADA4505-x family is specified for both the industrial temperature range (−40°C to +85°C) and the extended industrial temperature range (−40°C to +125°C). The ADA4505-1 single amplifier is available in a tiny 5-lead SOT-23. The ADA4505-2 dual amplifier is available in a standard 8-lead MSOP and a 8-ball WLCSP. The ADA4505-4 quad amplifier is available in a 14-lead TSSOP and a 14-ball WLCSP.The ADA4505-x family is a member of a growing series of zero crossover op amps offered by Analog Devices, Inc., including the AD8506/AD8508, which also operate from a single 1.8 V to 5 V power supply or from dual ±0.9 V to ±2.5 V power supplies.Applications Pressure and position sensors Remote security Medical monitors Battery-powered consumer equipment Hazard detectors

The ADA4817-1 (single) and ADA4817-2 (dual) FastFET™ amplifiers are unity-gain stable, ultrahigh speed, voltage feedback amplifiers with FET inputs. These amplifiers were developed with the Analog Devices, Inc., proprietary eXtra fast complementary bipolar (XFCB) process, which allows the amplifiers to achieve ultralow noise (4 nV/√Hz; 2.5 fA/√Hz) as well as very high input impedances.With 1.3 pF of input capacitance, low noise (4 nV/√Hz), low offset voltage (2 mV maximum), and 1050 MHz −3 dB bandwidth, the ADA4817-1/ADA4817-2 are ideal for data acquisition front ends as well as wideband transimpedance applications, such as photodiode preamps.With a wide supply voltage range from 5 V to 10 V and the ability to operate on either single or dual supplies, the ADA4817-1/ADA4817-2 are designed to work in a variety of applications including active filtering and analog-to-digital converter (ADC) driving. The ADA4817-1 is available in a 3 mm × 3 mm, 8-lead LFCSP and 8-lead SOIC, and the ADA4817-2 is available in a 4 mm × 4 mm, 16-lead LFCSP. These packages feature a low distortion pinout that improves second harmonic distortion and simplifies circuit board layout. They also feature an exposed pad that provides a low thermal resistance path to the printed circuit board (PCB). The EPAD enables more efficient heat transfer and increases reliability. These products are rated to work over the extended industrial temperature range (−40°C to +105°C).Applications Photodiode amplifiers Data acquisition front ends Instrumentation Filters ADC drivers Output buffers

The ADA4927 is a low noise, ultralow distortion, high speed, current feedback differential amplifier that is an ideal choice for driving high performance ADCs with resolutions up to 16 bits from dc to 100 MHz. The output common-mode level can easily be matched to the required ADC input common-mode levels. The internal common-mode feedback loop provides exceptional output balance and suppression of even-order distortion products.Differential gain configurations are easily realized using an external feedback network comprising four resistors. The current feedback architecture provides loop gain that is nearly independent of closed-loop gain, achieving wide bandwidth, low distortion, and low noise at higher gains and lower power consumption than comparable voltage feedback amplifiers.The ADA4927 is fabricated using the Analog Devices, Inc., silicon-germanium complementary bipolar process, enabling very low levels of distortion with an input voltage noise of only 1.3 nV/√Hz. The low dc offset and excellent dynamic performance of the ADA4927 make it well suited for a wide variety of data acquisition and signal processing applications.The ADA4927-1 is available in a Pb-free, 3 mm × 3 mm 16-lead LFCSP, and the ADA4927-2 is available in a Pb-free, 4 mm × 4 mm 24-lead LFCSP. The pinouts are optimized to facilitate printed circuit board (PCB) layout and to minimize distortion. They are specified to operate over the −40°C to +105°C temperature range.Applications ADC drivers Single-ended-to-differential converters IF and baseband gain blocks Differential buffers Differential line drivers

The ADA4939-1 / ADA4939-2 are low noise, ultralow distortion,high speed differential amplifiers. They are an ideal choice fordriving high performance ADCs with resolutions up to 16 bitsfrom dc to 100 MHz. The output common-mode voltage is useradjustable by means of an internal common-mode feedback loop,allowing the ADA4939-1 / ADA4939-2 output to match the inputof the ADC. The internal feedback loop also provides exceptionaloutput balance as well as suppression of even-order harmonicdistortion products.With the ADA4939-1 / ADA4939-2, differential gain configurationsare easily realized with a simple external feedback network of fourresistors that determine the closed-loop gain of the amplifier.The ADA4939-1 / ADA4939-2 are fabricated using Analog Devices,Inc., proprietary silicon-germanium (SiGe), complementary bipolarprocess, enabling them to achieve very low levels of distortion withan input voltage noise of only 2.3 nV/√Hz. The low dc offset andexcellent dynamic performance of the ADA4939-1 / ADA4939-2make them well suited for a wide variety of data acquisition andsignal processing applications.The ADA4939-1 (single) is available in a 3 mm × 3 mm, 16-leadLFCSP, and the ADA4939-2 (dual) is available in a 4 mm × 4 mm,24-lead LFCSP. The pinouts are optimized to facilitate printedcircuit board (PCB) layout and minimize distortion. TheADA4939-1/ADA4939-2 are specified to operate over the−40°C to +105°C temperature range; both operate on suppliesbetween 3.3 V and 5 V.Applications ADC drivers Single-ended-to-differential converters IF and baseband gain blocks Differential buffers Line drivers

The ADAU1361 is a low power, stereo audio codec that supports stereo 48 kHz record and playback at 14 mW from a 1.8 V analog supply. The stereo audio ADCs and DACs support sample rates from 8 kHz to 96 kHz as well as a digital volume control. The ADAU1361 is ideal for battery-powered audio and telephony applications.The record path includes an integrated microphone bias circuit and six inputs. The inputs can be mixed and muxed before the ADC, or they can be configured to bypass the ADC. The ADAU1361 includes a stereo digital microphone input.The ADAU1361 includes five high power output drivers (two differential and three single-ended), supporting stereo headphones, an earpiece, or other output transducer. AC-coupled or capless configurations are supported. Individual fine level controls are supported on all analog outputs. The output mixer stage allows for flexible routing of audio.The serial control bus supports the I2C and SPI protocols. The serial audio bus is programmable for I2S, left-/right-justified, and TDM modes. A programmable PLL supports flexible clock generation for all standard integer rates and fractional master clocks from 8 MHz to 27 MHz.Applications Smartphones/Multimedia phones Digital Still Cameras/Digital Video Cameras Portable Media Players/Portable Audio Players Phone accessories products

The ADAU1361 is a low power, stereo audio codec that supports stereo 48 kHz record and playback at 14 mW from a 1.8 V analog supply. The stereo audio ADCs and DACs support sample rates from 8 kHz to 96 kHz as well as a digital volume control. The ADAU1361 is ideal for battery-powered audio and telephony applications.The record path includes an integrated microphone bias circuit and six inputs. The inputs can be mixed and muxed before the ADC, or they can be configured to bypass the ADC. The ADAU1361 includes a stereo digital microphone input.The ADAU1361 includes five high power output drivers (two differential and three single-ended), supporting stereo headphones, an earpiece, or other output transducer. AC-coupled or capless configurations are supported. Individual fine level controls are supported on all analog outputs. The output mixer stage allows for flexible routing of audio.The serial control bus supports the I2C and SPI protocols. The serial audio bus is programmable for I2S, left-/right-justified, and TDM modes. A programmable PLL supports flexible clock generation for all standard integer rates and fractional master clocks from 8 MHz to 27 MHz.Applications Smartphones/Multimedia phones Digital Still Cameras/Digital Video Cameras Portable Media Players/Portable Audio Players Phone accessories products

The ADAV4601 is an enhanced audio processor targeting advanced TV applications with full support for digital and analog baseband audio.The audio processor, by default, loads a dedicated TV audio flow that incorporates full matrix switching (any input to any output), automatic volume control that compensates for volume changes during advertisements or when switching channels, dynamic bass, a multiband equalizer, and up to 200 ms of stereo delay memory for audio-video synchronization.Alternatively, Analog Devices offers an award-winning graphical programming tool (SigmaStudio™) that allows custom flows to be quickly developed and evaluated. This allows the creation of customer-specific audio flows, including the use of ADI library of third-party algorithms.The analog I/O integrates Analog Devices proprietary continuous-time, multibit Σ-Δ architecture to bring a higher level of performance to ATV systems, required by third-party algorithm providers to meet system branding certification. The analog input is provided by 95 dB dynamic range (DNR) ADCs, and analog output is provided by 94 dB DNR DACs.The main speaker outputs can be supplied as a digitally modulated PWM stream to support digital amplifiers.The ADAV4601 includes multichannel digital inputs and outputs. In addition, digital input channels can be routed through integrated sample rate converters (SRC), which are capable of supporting any arbitrary sample rate from 5 kHz to 50 kHz.ApplicationsGeneral-purpose consumer audio post processingHome audioDVD recordersHome theater in a box systems and DVD receiversAudio processing subsystems for DTV-ready TVsAnalog broadcast capability for iDTVs

The ADG858 is a low voltage CMOS device containing foursingle-pole, double-throw (SPDT) switches. This device offersultralow on resistance of less than 0.82 Ω over the full temperaturerange. The ADG858 is fully specified for 4.2 V to 5.5 V and 2.7 Vto 3.6 V supply operation.Each switch conducts equally well in both directions when onand has an input signal range that extends to the supplies. TheADG858 exhibits break-before-make switching action.The ADG858 is available in a 2.1 mm × 2.1 mm, 16-lead miniLFCSP. This tiny package makes the device ideal for spaceconstrainedapplications, such as handsets, PDAs, and MP3s.Product Highlights <0.82 Ω over the full temperature range of −40°C to +85°C. Single 1.8 V to 5.5 V operation. Compatible with 1.8 V CMOS logic. High current handling capability (250 mA continuous current per channel). Low THD + N: 0.06% typical. 2.1 mm × 2.1 mm, 16-lead mini LFCSP.Applications Cellular phones PDAs MP3 players Power routing Battery-powered systems PCMCIA cards Modems Audio and video signal routing Communication systems