RF Development Tools Evaluation board for ADL5358

BOARD EVALUATION FOR AD7939CBZ

The AD7766/AD7766-1/AD7766-2 are high performance,24-bit, oversampled SAR analog-to-digital converters (ADCs).The AD7766/AD7766-1/AD7766-2 combine the benefits of alarge dynamic range and input bandwidth, consuming 15 mW,10.5 mW, and 8.5 mW power, respectively, and are contained ina 16-lead TSSOP package.Ideal for ultralow power data acquisition (such as PCI- and USBbasedsystems), the AD7766/AD7766-1/AD7766-2 provide 24-bitresolution. The combination of exceptional SNR, wide dynamicrange, and outstanding dc accuracy make the AD7766/AD7766-1/AD7766-2 ideally suited for measuring small signal changes over awide dynamic range. This is particularly suitable for applicationswhere small changes on the input are measured on larger ac ordc signals. In such an application, the AD7766/AD7766-1/AD7766-2 accurately gather both ac and dc information.The AD7766/AD7766-1/AD7766-2 include an on-board digitalfilter (complete with linear phase response) that acts to eliminateout-of-band noise by filtering the oversampled input voltage.The oversampled architecture also reduces front-end antialiasrequirements. Other features of the AD7766/AD7766-1/AD7766-2include a SYNC/PD (synchronization/power-down) pin, allowingthe synchronization of multiple AD7766/AD7766-1/AD7766-2devices. The addition of an SDI pin provides the option of daisychaining multiple AD7766/AD7766-1/AD7766-2 devices.The AD7766/AD7766-1/AD7766-2 operate from a 2.5 V supplyusing a 5 V reference. The devices operate from ?40?C to +105?C. Applications Low power PCI/USB data acquisition systems Low power wireless acquisition systems Vibration analysis Instrumentation High precision medical acquisition

The AD7794/AD7795 are low power, low noise, complete analog front ends for high precision measurement applications. They contain a low noise, 24-/16-bit ?-? ADC with six differential inputs. The on-chip low noise instrumentation amplifier means that signals of small amplitude can be interfaced directly to the ADC.Each device contains a precision, low noise, low drift internal band gap reference, and can also accept up to two external differential references. Other on-chip features include programmable excitation current sources, burnout currents, and a bias voltage generator that is used to set the common-mode voltage of a channel to AVDD/2. The low-side power switch can be used to power down bridge sensors between conversions, minimizing the system?s power consumption. The AD7794/AD7795 can operate with either an internal clock or an external clock. The output data rate from each part can vary from 4.17 Hz to 470 Hz.Both parts operate with a power supply from 2.7 V to 5.25 V. The B-grade parts (AD7794 and AD7795) are specified for a temperature range of ?40?C to +105?C while the C-grade part (AD7794) is specified for a temperature range of ?40?C to +125?C. They consume a current of 400 ?A typical and are housed in a 24-lead TSSOP.Applications Temperature measurement Pressure measurement Weigh scales Strain gage transducers Gas analysis

The LTC3787 is a high performance PolyPhase? single output synchronous boost converter controller that drives two N-channel power MOSFET stages out-of-phase. Multiphase operation reduces input and output capacitor requirements and allows the use of smaller inductors than the single-phase equivalent. Synchronous rectification increases efficiency, reduces power losses and eases thermal requirements, enabling high power boost applications. A 4.5V to 38V input supply range encompasses a wide range of system architectures and battery chemistries. When biased from the output of the boost converter or another auxiliary supply, the LTC3787 can operate from an input supply as low as 2.5V after start-up. The operating frequency can be set for a 50kHz to 900kHz range or synchronized to an external clock using the internal PLL. PolyPhase operation allows the LTC3787 to be configured for 2-, 3-, 4-, 6- and 12-phase operation. The SS pin ramps the output voltage during start-up. The PLLIN/MODE pin selects Burst Mode? operation, pulse- skipping mode or forced continuous mode at light loads.Applications Industrial Automotive Medical Military?

Demonstration circuit 542 is a dual output, dual phase synchronous step-down controller, featuring the LTC3728EG. Output #1 can be configured for either 5.0V or 3.3V and output #2 can be configured for either 3.3V or 2.5V. The maximum load for both rails is 12A. The input voltage range of the DC542 is 8V to 24V. The DC542 also contains a footprint for a 5.5V boost converter bias supply whose output is connected to EXTVCC. See the “Optional Bias Supply” section for more details.

The HMC8073 is a 6-bit digital step attenuator (DSA), operating from 0.6 GHz to 3.0 GHz, that features 31.5 dB of attenuation range with 0.5 dB steps.The HMC8073 is implemented in a silicon process, offering a fast settling time, low power consumption, and high electrostatic discharge (ESD) robustness. The device features safe state transitions, allowing attenuation state changes without overshooting, and is optimized for excellent step accuracy and high power and high linearity over frequency and temperature range. The radio frequency (RF) input and output are internally matched to 50 ? and do not require any external matching components. The design is bidirectional, and the RF input and output are interchangeable.The external address feature of the HMC8073 allows users to control up to eight DSAs using a single bus. The DSA has an on-chip regulator that supports a wide supply operating range from 3.3 V to 5.0 V with no performance change in electrical characteristics. The HMC8073 incorporates a complementary metal-oxide semiconductor (CMOS)- and transistor transitory logic (TTL)- compatible interface that supports serial (3-wire) control of the attenuator.The HMC8073 comes in an RoHS compliant, compact, 3 mm ? 3 mm LFCSP package.Applications Cellular infrastructure Microwave radios? Very small aperture terminals Test equipment and sensors

The HMC8412 is a gallium arsenide (GaAs), monolithic microwave integrated circuit (MMIC), pseudomorphic high electron mobility transistor (pHEMT), low noise wideband amplifier that operates from 0.4 GHz to 11 GHz. The HMC8412 provides a typical gain of 15.5 dB, a 1.4 dB typical noise figure, and a typical output third-order intercept (OIP3) of ?33 dBm, requiring only 60 mA from a 5 V drain supply voltage. The saturated output power (PSAT) of ?20.5 dBm typical enables the low noise amplifier (LNA) to function as a local oscillator (LO) driver for many Analog Devices, Inc., balanced, inphase and quadrature (I/Q) or image rejection mixers. The HMC8412 also features inputs and outputs that are internally matched to 50 ?, making the device ideal for surface-mount technology (SMT)-based, high capacity microwave radio applications. The HMC8412 is housed in an RoHS-compliant, 2 mm ? 2 mm, 6-lead LFCSP.APPLICATIONS Test instrumentation Telecommunications Military radar and communication Electronic warfare Aerospace

The AD5544/AD5554 quad, 16-/14-bit, current output, digital-to-analog converters (DACs) are designed to operate from 2.7 V to 5.5 V supply range.The applied external reference input voltage (VREFX) determines the full-scale output current. Integrated feedback resistors (RFB) provide temperature-tracking, full-scale voltage outputs when combined with an external I-to-V precision amplifier.A double-buffered serial data interface offers high speed, 3-wire, SPI- and microcontroller-compatible inputs using serial data in (SDI), a chip select (CS), and clock (CLK) signals. In addition, a serial data out pin (SDO) allows for daisy-chaining when multiple packages are used. A common, level-sensitive, load DAC strobe (LDAC) input allows the simultaneous update of all DAC outputs from previously loaded input registers. Additionally, an internal power-on reset forces the output voltage to 0 at system turn-on. An MSB pin allows system reset assertion (RS) to force all registers to zero code when MSB = 0, or to half-scale code when MSB = 1.The AD5544 is packaged in the compact 28-lead SSOP and 32-lead LFCSP. ?The AD5554 is ?packaged in the compact 28-lead SSOP.Applications Automatic test equipment Instrumentation Digitally controlled calibration

The ADF4153 is a fractional-N frequency synthesizer that implements local oscillators in the upconversion and downconversion sections of wireless receivers and transmitters. It consists of a low noise digital phase frequency detector (PFD), a precision charge pump, and a programmable reference divider. There is a ?-? based fractional interpolator to allow programmable fractional-N division. The INT, FRAC, and MOD registers define an overall N divider (N = (INT + (FRAC/MOD))). In addition, the 4-bit reference counter (R counter) allows selectable REFIN frequencies at the PFD input. A complete phase- locked loop (PLL) can be implemented if the synthesizer is used with an external loop filter and a voltage controlled oscillator (VCO).A simple 3-wire interface controls all on-chip registers. The device operates with a power supply ranging from 2.7 V to 3.3 V and can be powered down when not in use.Applications CATV equipment Base stations for mobile radio (GSM, PCS, DCS, WiMAX, SuperCell 3G, CDMA, W-CDMA) Wireless handsets (GSM, PCS, DCS, CDMA, W-CDMA) Wireless LANs, PMR Communications test equipment