The AD9736, AD9735, and AD9734 are high performance, high frequency DACs that provide sample rates of up to 1200 MSPS, permitting multicarrier generation up to their Nyquist frequency. The AD9736 is the 14-bit member of the family, while the AD9735 and the AD9734 are the 12-bit and 10-bit members, respectively. They include a serial peripheral interface (SPI) port that provides for programming of many internal parameters and enables readback of status registers.A reduced-specification LVDS interface is utilized to achieve the high sample rate. The output current can be programmed over a range of 8.66 mA to 31.66 mA. The AD973x family is manufactured on a 0.18 ?m CMOS process and operates from 1.8 V and 3.3 V supplies for a total power consumption of 380 mW in bypass mode. It is supplied in a 160-lead chip scale ball grid array for reduced package parasitics.Product Highlights Low noise and intermodulation distortion (IMD) features enable high quality synthesis of wideband signals at intermediate frequencies up to 600 MHz. Double data rate (DDR) LVDS data receivers support the maximum conversion rate of 1200 MSPS. Direct pin programmability of basic functions or SPI port access offers complete control of all AD973x family functions. Manufactured on a CMOS process, the AD973x family uses a proprietary switching technique that enhances dynamic performance. The current output(s) of the AD9736 family are easily configured for single-ended or differential circuit topologies.Applications Broadband communications systems Cellular infrastructure (digital predistortion) Point-to-point wireless CMTS/VOD Instrumentation, automatic test equipment Radar, avionics

The AD9736, AD9735, and AD9734 are high performance, high frequency DACs that provide sample rates of up to 1200 MSPS, permitting multicarrier generation up to their Nyquist frequency. The AD9736 is the 14-bit member of the family, while the AD9735 and the AD9734 are the 12-bit and 10-bit members, respectively. They include a serial peripheral interface (SPI) port that provides for programming of many internal parameters and enables readback of status registers.A reduced-specification LVDS interface is utilized to achieve the high sample rate. The output current can be programmed over a range of 8.66 mA to 31.66 mA. The AD973x family is manufactured on a 0.18 ?m CMOS process and operates from 1.8 V and 3.3 V supplies for a total power consumption of 380 mW in bypass mode. It is supplied in a 160-lead chip scale ball grid array for reduced package parasitics.Product Highlights Low noise and intermodulation distortion (IMD) features enable high quality synthesis of wideband signals at intermediate frequencies up to 600 MHz. Double data rate (DDR) LVDS data receivers support the maximum conversion rate of 1200 MSPS. Direct pin programmability of basic functions or SPI port access offers complete control of all AD973x family functions. Manufactured on a CMOS process, the AD973x family uses a proprietary switching technique that enhances dynamic performance. The current output(s) of the AD9736 family are easily configured for single-ended or differential circuit topologies.Applications Broadband communications systems Cellular infrastructure(digital predistortion) Point-to-point wireless CMTS/VOD Instrumentation, automatic test equipment Radar, avionics

The AD97481 is an 8-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 AD9748 offers exceptional ac and dc performance while supporting update rates up to 210 MSPS. The AD9748?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 32-lead LFCSP. The AD9748 is the 8-bit member of the pin-compatible TxDAC family, which offers excellent INL and DNL performance. Differential or single-ended clock input (LVPECL or CMOS), supports 210 MSPS conversion rate. Data input supports twos complement or straight binary data coding. 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 AD9748 includes a 1.2 V temperature-compensated band gap voltage reference.?APPLICATIONS Communications Direct digital synthesis (DSS) Instrumentation

The AD9761 is a complete dual channel, high speed, 10-bitCMOS DAC. The AD9761 has been developed specifically foruse in wide bandwidth communication applications (e.g., spreadspectrum) where digital I and Q information is being processedduring transmit operations. It integrates two 10-bit, 40 MSPSDACs, dual 2x interpolation filters, a voltage reference, anddigital input interface circuitry. The AD9761 supports a20 MSPS per channel input data rate that is then interpolatedby 2x up to 40 MSPS before simultaneously updating eachDAC.The interleaved I and Q input data stream is presented to thedigital interface circuitry, which consists of I and Q latches as wellas some additional control logic. The data is de-interleaved backinto its original I and Q data. An on-chip state machine ensures theproper pairing of I and Q data. The data output from each latch isthen processed by a 2x digital interpolation filter that eases thereconstruction filter requirements. The interpolated output of eachfilter serves as the input of their respective 10-bit DAC.The DACs utilize a segmented current source architecture combinedwith a proprietary switching technique to reduce glitchenergy and to maximize dynamic accuracy. Each DAC providesdifferential current output thus supporting single-ended ordifferential applications. Both DACs are simultaneously updatedand provide a nominal full-scale current of 10 mA. Also,the full-scale currents between each DAC are matched to within0.07 dB (i.e., 0.75%), thus eliminating the need for additionalgain calibration circuitry.The AD9761 is manufactured on an advanced low cost CMOSprocess. It operates from a single supply of 2.7 V to 5.5 V andconsumes 200 mW of power. To make the AD9761 complete italso offers an internal 1.20 V temperature-compensated bandgapreference.PRODUCT HIGHLIGHTS Dual 10-Bit, 40 MSPS DACs A pair of high performance 40 MSPS DACs optimized for low distortion performance provide for flexible transmission of I and Q information. 2x Digital Interpolation Filters Dual matching FIR interpolation filters with 62.5 dB stopband rejection precede each DAC input, thus reducing the DACs? reconstruction filter requirements. Low Power Complete CMOS dual DAC function operates on a low 200 mW on a single supply from 3 V to 5.5 V. The DAC full-scale current can be reduced for lower power operation, and a sleep mode is provided for power reduction during idle periods. On-Chip Voltage Reference The AD9761 includes a 1.20 V temperature-compensated band gap voltage reference. Single 10-Bit Digital Input Bus The AD9761 features a flexible digital interface that allows each DAC to be addressed in a variety of ways including different update rates. Small Package The AD9761 offers the complete integrated function in a compact 28-lead SSOP package. Product Family The AD9761 Dual Transmit DAC has a pair of Dual Receive ADC companion products, the AD9281 (8 bits) and AD9201 (10 bits).

The AD9763/AD9765/AD9767 are dual-port, high speed, 2-channel, 10-/12-/14-bit CMOS DACs. Each part integratestwo high quality TxDAC+? cores, a voltage reference, and digital interface circuitry into a small 48-lead LQFP. The AD9763/AD9765/AD9767 offer exceptional ac and dc performancewhile supporting update rates of up to 125 MSPS.The AD9763/AD9765/AD9767 have been optimized forprocessing I and Q data in communications applications. Thedigital interface consists of two double-buffered latches as well as control logic. Separate write inputs allow data to be written to the two DAC ports independent of one another. Separate clocks control the update rate of the DACs.A mode control pin allows the AD9763/AD9765/AD9767 to interface to two separate data ports, or to a single interleavedhigh speed data port. In interleaving mode, the input datastream is demuxed into its original I and Q data and then latched. The I and Q data is then converted by the two DACsand updated at half the input data rate.The GAINCTRL pin allows two modes for setting the full-scale current (IOUTFS) of the two DACs. IOUTFS for each DAC can be set independently using two external resistors, or IOUTFS for both DACs can be set by using a single external resistor. See theGain Control Mode section for important date codeinformation on this feature.The DACs utilize a segmented current source architecturecombined with a proprietary switching technique to reduce glitch energy and maximize dynamic accuracy. Each DAC providesdifferential current output, thus supporting single-ended or differential applications. Both DACs of the AD9763, AD9765, or AD9767 can be simultaneously updated and can provide anominal full-scale current of 20 mA. The full-scale currentsbetween each DAC are matched to within 0.1%.The AD9763/AD9765/AD9767 are manufactured on anadvanced, low cost CMOS process. They operate from a singlesupply of 3.3 V to 5 V and consume 380 mW of power.Product HighlightsThe AD9763/AD9765/AD9767 are members of a pin-compatible family of dual TxDACs providing 8-, 10-, 12-, and 14-bit resolution.Dual 10-/12-/14-Bit, 125 MSPS DACs. A pair of high performance DACs for each part is optimized for low distortion performance and provides flexible transmission of I and Q information.Matching. Gain matching is typically 0.1% of full scale, and offset error is better than 0.02%.Low Power. Complete CMOS dual DAC function operates on 380 mW from a 3.3 V to 5 V single supply. The DAC full-scalecurrent can be reduced for lower power operation, and a sleepmode is provided for low power idle periods.On-Chip Voltage Reference. The AD9763/AD9765/AD9767each include a 1.20 V temperature-compensated band gapvoltage reference.Dual 10-/12-/14-Bit Inputs. The AD9763/AD9765/AD9767each feature a flexible dual-port interface, allowing dual orinterleaved input data.ApplicationsCommunicationsBase stationsDigital synthesisQuadrature modulation3D ultrasound

The AD7792/AD7793?are low power, low noise, complete analog front ends for high precision measurement applications. The AD7792/AD7793 contain a low noise 16-/24-bit ?-? ADC with three differential analog inputs. The on-chip, low noise instrumentation amplifier means that signals of small amplitude can be interfaced directly to the ADC. With a gain setting of 64, the rms noise is 40 nV when the update rate equals 4.17 Hz.The devices contain a precision low noise, low drift internal band gap reference and can accept an external differential reference. Other on-chip features include programmable excitation current sources, burnout currents, and a bias voltage generator. The bias voltage generator sets the common-mode voltage of a channel to AVDD/2.The devices can be operated with either the internal clock or an external clock. The output data rate from the parts is software-programmable and can be varied from 4.17 Hz to 470 Hz.The parts operate with a power supply from 2.7 V to 5.25 V. They consume a current of 400 ?A typical and are housed in a 16-lead TSSOP package.Applications Thermocouple measurements RTD measurements Thermistor measurements Gas analysis Industrial process control Instrumentation Portable instrumentation Blood analysis Smart transmitters Liquid/gas chromatography 6-digit DVM

The AD5172 / AD5173?are dual-channel, 256-position, one-time programmable (OTP) digital potentiometers that employ fuse link technology to achieve memory retention of resistance settings. The digital potentiometer, VR, and RDAC terms are used interchangeably. OTP is a cost-effective alternative to EEMEM for users who do not need to program the digital potentiometer setting in memory more than once. These devices perform the same electronic adjustment function as mechanical potentiometers or variable resistors but with enhanced resolution, solid-state reliability, and superior low temperature coefficient performance.TheAD5172 / AD5173 are programmed using a 2-wire, I2C-compatible digital interface. Unlimited adjustments are allowed before permanently setting the resistance value. During OTP activation, a permanent blow fuse command freezes the wiper position (analogous to placing epoxy on a mechanical trimmer).Unlike traditional OTP digital potentiometers, the AD5172 / AD5173 have a unique temporary OTP overwrite feature that allows for new adjustments even after a fuse is blown. However, the OTP setting is restored during subsequent power-up conditions. This allows users to treat these digital potentiometers as volatile potentiometers with a programmable preset.APPLICATIONS Systems calibration Electronics level setting Mechanical trimmers replacement in new designs Permanent factory PCB setting Transducer adjustment of pressure, temperature, position, chemical, and optical sensors RF amplifier biasing Gain control and offset adjustment

BOARD EVAL FOR AD5405

The LTC6655 is a complete family of precision bandgap voltage references, offering exceptional noise and drift performance. This low noise and drift is ideally suited for the high resolution measurements required by instrumentation and test equipment. In addition, the LTC6655 is fully specified over the temperature range of ?40?C to 125?C, ensuring its suitability for demanding automotive and industrial applications. Advanced curvature compensation allows this bandgap reference to achieve a drift of less than 2ppm/?C with a predictable temperature characteristic and an output voltage accurate to ?0.025%, reducing or eliminating the need for calibration.The LTC6655LN Low Noise comes with a noise reduction pin that enables reduction of wideband noise with the addition of a single capacitor.The LTC6655 can be powered from as little as 500mV above the output voltage to as much as 13.2V. Superior load regulation with source and sink capability, coupled with exceptional line rejection, ensures consistent performance over a wide range of operating conditions. A shutdown mode is provided for low power applications.The LTC6655 references are offered in an 8-lead MSOP package and an 8-lead LS8 package. The LS8 is a 5mm ? 5mm surface mount hermetic package that provides outstanding stability.APPLICATIONS Instrumentation and Test Equipment High Resolution Data Acquisition Systems Weigh Scales Precision Battery Monitors Precision Regulators Medical Equipment

The LTC3115-2 is a high voltage monolithic synchronous buck-boost DC/DC converter optimized for applications subject to fast (<1ms) input voltage transients. For all other applications, the LTC3115-1 is recommended. With its wide 2.7V to 40V input and output voltage ranges, the LTC3115-2 is well suited for use in a wide variety of automotive and industrial power supplies. A proprietary low noise switching algorithm optimizes efficiency with input voltages that are above, below or even equal to the output voltage and ensures seamless transitions between operational modes.Programmable frequency PWM mode operation provides low noise, high efficiency operation and the ability to synchronize switching to an external clock. Switching frequencies up to 2MHz are supported to allow use of small value inductors for miniaturization of the application circuit. Pin selectable Burst Mode operation reduces standby current and improves light load efficiency which, combined with a 3?A shutdown current, make the LTC3115-2 ideally suited for battery-powered applications. Additional features include output disconnect in shutdown, short-circuit protection and internal soft-start. The LTC3115-2 is available in thermally enhanced 16-lead 4mm ? 5mm ? 0.75mm DFN and 20-lead TSSOP packages. Features LTC3115-1 - LTC3115-2 Optimized for applications subject to fast (<1ms) input voltage transients Applications 24V/28V Industrial Applications Automotive Power Systems Telecom, Servers and Networking Equipment FireWire Regulator Multiple Power Source Supplies