The HMC862A is a low noise, programmable frequency divider in a 3 mm ? 3 mm, leadless, surface-mount package. The frequency divider, N, can be programmed to divide from 1, 2, 4, or 8 in the 0.1 GHz to 24 GHz input frequency range.The low phase noise, wide frequency range, and flexible division ratio make this device ideal for high performance and wideband communication systems.Applications Satellite communication systems Point to point and point to multipoint radios Military applications Test equipment

The HMC998APM5E is a GaAs pHEMT MMIC Distributed Power Amplifier which operates from DC to 22 GHz. The amplifier provides +15 dB of gain, +42 dBm output IP3, and +32 dBm of output power at 1dB gain compression while requiring only 500mA from a +15V supply. The HMC998APM5E exhibits a slightly positive gain slope from 3 to 17 GHz making it ideal for military and space and test equipment applications. The HMC998APM5E amplifier I/Os are internally matched to 50 Ohms and is housed ina RoHS compliant, 5x5 mm leadless QFN surface mount package.APPLICATIONS Test instumentation Military & space Fiber optics

The AD7768-1 is a low power, high performance, ?-? analog-to-digital converter (ADC), with a ?-? modulator and digitalfilter for precision conversion of both ac and dc signals. The AD7768-1 is a single-channel version of the AD7768, an 8-channel, simultaneously sampling, ?-? ADC. The AD7768-1 provides a single configurable and reusable data acquisition (DAQ) footprint, which establishes a new industry standard in combined ac and dc performance and enables instrumentation and industrial system designers to design across multiple measurement variants for both isolated and nonisolated applications.The AD7768-1 achieves a 108.5 dB dynamic range when using the low ripple, finite impulse response (FIR) digital filter at 256 kSPS, giving 110.8 kHz input bandwidth, combined with ?1.1 ppm integral nonlinearity (INL), ?30 ?V offset error, and ?30 ppm gain error.A wider bandwidth, up to 500 kHz Nyquist (filter ?3 dB point of 204 kHz), is available using the sinc5 filter, enabling a view of signals over an extended range.The AD7768-1 offers the user the flexibility to configure and optimize for input bandwidth vs. output data rate (ODR) and vs. power dissipation. The flexibility of the AD7768-1 allows dynamic analysis of a changing input signal, making the device particularly useful in general-purpose DAQ systems. The selection of one of three available power modes allows the designer to achieve required noise targets while minimizing power consumption. The design of the AD7768-1 is unique in that it becomes a reusable and flexible platform for low power dc and high performance ac measurement modules.The AD7768-1 achieves the optimum balance of dc and ac performance with excellent power efficiency. The following three operating modes allow the user to trade off the input bandwidth vs. power budgets: Fast mode offers both a sinc filter with up to 256 kSPS and 52.2 kHz of bandwidth, and 26.4 mW of power consumption, or a FIR filter with up to 256 kSPS, 110.8 kHz of bandwidth and 36.8 mW of power consumption. Median mode offers a FIR filter with up to 128 kSPS, 55.4 kHz of bandwidth and 19.7 mW of power consumption. Low power mode offers a FIR filter with up to 32 kSPS, 13.85 kHz of bandwidth and 6.75 mW of power consumption.The AD7768-1 offers extensive digital filtering capabilities that meet a wide range of system requirements. The filter options allow configuration for frequency domain measurements with tight gain error over frequency, linear phase response requirements (brick wall filter), a low latency path (sinc5 or sinc3) for use in control loop applications, and measuring dc inputs with the ability to configure the sinc3 filter to reject the line frequency of either 50 Hz or 60 Hz. All filters offer programmable decimation.A 1.024 MHz sinc5 filter path exists for users seeking an even higher ODR than is achievable using the low ripple FIR filter. This path is quantization noise limited. Therefore, it is best suited for customers requiring minimum latency for control loops or implementing custom digital filtering on an external field programmable gate array (FPGA) or digital signal processor (DSP).The filter options include the following: A low ripple FIR filter with a ?0.005 dB pass-band ripple to 102.4 kHz. A low latency sinc5 filter with up to a 1.024 MHz data rate to maximize control loop responsiveness. A low latency sinc3 filter that is fully programmable, with 50 Hz/60 Hz rejection capabilities.When using the AD7768-1, embedded analog functionalitywithin the AD7768-1 greatly reduces the design burden over theentire application range. The precharge buffer on each analoginput decreases the analog input current compared tocompeting products, simplifying the task of an externalamplifier to drive the analog input.A full buffer input on the reference reduces the input current,providing a high impedance input for the external referencedevice or in buffering any reference sense resistor scenariosused in ratiometric measurements.The device operates with a 5.0 V AVDD1 ? AVSS supply, a 2.0 V to 5.0 V AVDD2 ? AVSS supply, and a 1.8 V to 3.3 V IOVDD ? DGND supply.In low power mode, the AVDD1, AVDD2, and IOVDD supplies can run from a single 3.0 V rail.The device requires an external reference. The absolute input reference (REFIN) voltage range is 1 V to AVDD1 ? AVSS.The specified operating temperature range is ?40?C to +125?C. The device is housed in a 4 mm ? 5 mm, 28-lead LFCSP.Note that, throughout this data sheet, multifunction pins, suchas XTAL2/MCLK, are referred to either by the entire pin nameor by a single function of the pin, for example, MCLK, whenonly that function is relevant.Applications Platform ADC to serve a superset of measurements and sensor types Sound and vibration, acoustic, and material science research and development Control and hardware in loop verification Condition monitoring for predictive maintenance Electrical test and measurement Audio testing and current and voltage measurement Clinical electroencephalogram (EEG), electromyogram (EMG), and electrocardiogram (ECG) vital signs monitoring USB-, PXI-, and Ethernet-based modular DAQ Channel to channel isolated modular DAQ designs

The ADA4961 is a high performance, BiCMOS RF digital gain?amplifier (DGA), optimized for driving heavy loads out to 2.0 GHz and beyond. The device typically achieves ?90 dBc?IMD3 performance at 500 MHz and ?85 dBc at 1.5 GHz. This?RF performance allows GHz converters to achieve their optimum?performance with minimal limitations of the driver amplifier or constraints on overall power that typically result from GaAs amplifiers. This device can easily drive 10-bit to 16-bit HS?converters.For many receiver applications, antialias filter (AAF) designs?can be simplified or not required.The ADA4961 has an internal differential input impedance of 100 ? and a differential dynamic output impedance of 50 ?,?eliminating the need for external termination resistors. The?digital adjustability provides for 1 dB resolution, thus optimizing the signal-to-noise ratio (SNR) for input levels spanning 21 dB.The ADA4961 is optimized for wideband, low distortion?performance at frequencies up to 2 GHz. These attributes,?together with wide gain adjustment and relatively low power, make the ADA4961 the amplifier of choice for many high speed?applications, including IF, RF, and broadband applications where dynamic range at very high frequencies is critical.The ADA4961 is ideally suited for driving not only analog-to-digital converters (ADCs), but also mixers, pin diode attenuators,?SAW filters, and multielement discrete devices. It is available in a 4 mm ? 4 mm, 24-lead LFCSP and operates over a?temperature range of ?40?C to +85?C. Applications ADC driver for 10-bit to 14-bit GSPS converters RF/IF gain blocks Line drivers Instrumentation Satellite communications Data acquisition Military systems

The ADF4108 frequency synthesizer can be used to implement local oscillators in the up-conversion and down-conversion sections of wireless receivers and transmitters. It consists of a low-noise digital PFD (phase frequency detector), a precision charge pump, a programmable reference divider, programmable A and B counters, and a dual-modulus prescaler (P/P + 1). The A (6-bit) and B (13-bit) counters, in conjunction with the dual-modulus prescaler (P/P + 1), implement an N divider (N = BP + A). In addition, the 14-bit reference counter (R counter), allows selectable REFIN frequencies at the PFD input. A complete PLL (phase-locked loop) can be implemented if the synthesizer is used with an external loop filter and VCO (voltage controlled oscillator). Its very high bandwidth (8GHz) means that frequency doublers or prescalers can be eliminated in many high frequency systems, simplifying system architecture and reducing cost.Applications Broadband wireless access Satellite systems Instrumentation Wireless LANs Base stations for wireless radio

The ADF4193 frequency synthesizer can be used to implement local oscillators in the upconversion and downconversion sections of wireless receivers and transmitters. Its architecture is specifically designed to meet the GSM/EDGE lock time requirements for base stations. It consists of a low noise, digital phase frequency detector (PFD), and a precision differential charge pump. There is also a differential amplifier to convert the differential charge pump output to a single-ended voltage for the external voltage-controlled oscillator (VCO).The ?-?-based fractional interpolator, working with the N divider, allows programmable modulus fractional-N division. Additionally, the 4-bit reference (R) counter and on-chip frequency doubler allow selectable reference signal (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 VCO. The switching architecture ensures that the PLL settles inside the GSM time slot guard period, removing the need for a second PLL and associated isolation switches. This decreases cost, complexity, PCB area, shielding, and characterization on previous ping-pong GSM PLL architectures.Applications GSM/EDGE base stations PHS base stations Instrumentation and test equipment

The ADF4360-7?is an integrated integer-N synthesizer and voltage controlled oscillator (VCO). The ADF4360-7 center frequency is set by external inductors. This allows a frequency range of between 350 MHz to 1800 MHz. In addition, a divide-by-2 option is available, whereby the user receives an RF output of between 175 MHz and 900 MHz.Control of all the on-chip registers is through a simple 3-wire interface. The device operates with a power supply ranging from 3.0 V to 3.6 V and can be powered down when not in use.APPLICATIONS Wireless handsets (DECT, GSM, PCS, DCS, WCDMA) Test equipment Wireless LANs CATV equipment

The ADF4372 allows implementation of fractional-N or integer-N phase-locked loop (PLL) frequency synthesizers when used with an external loop filter and an external reference frequency. The wideband microwave voltage controlled oscillator (VCO) design allows frequencies from 62.5 MHz to 16 GHz to be generated.The ADF4372 has an integrated VCO with a fundamental output frequency ranging from 4000 MHz to 8000 MHz. In addition, the VCO frequency is connected to a divide by 1, 2, 4, 8, 16, 32, or 64 circuit that allows the user to generate radio frequency (RF) output frequencies as low as 62.5 MHz at RF8x. A frequency multiplier at RF16x generates from 8 GHz to 16 GHz. RFAUX8x duplicates the frequency range of RF8x or permits direct access to the VCO output. To suppress the unwanted products of frequency multiplication, a harmonic filter exists between the multiplier and the output stage of RF16x.Control of all on-chip registers is through a 3-wire interface. The ADF4372 operates with analog and digital power supplies ranging from 3.15 V to 3.45 V, and 5 V for the VCO power supply. The ADF4372 also contains hardware and software power-down modes.APPLICATIONS Wireless infrastructure (multicarrier global system for mobile communication (MC-GSM), 5 G) Test equipment and instrumentation Clock generation Aerospace and defense

The ADF5355 allows implementation of fractional-N or integer-N phase-locked loop (PLL) frequency synthesizers when used with an external loop filter and an external reference frequency. The wideband microwave VCO design permits frequency operation from 6.8 GHz to 13.6 GHz at one radio frequency (RF) output. A series of frequency dividers at another frequency output permits operation from 54 MHz to 6800 MHz.The ADF5355 has an integrated VCO with a fundamental output frequency ranging from 3400 MHz to 6800 MHz. In addition, the VCO frequency is connected to divide by 1, 2, 4, 8, 16, 32, or 64 circuits that allow the user to generate RF output frequencies as low as 54 MHz. For applications that require isolation, the RF output stage can be muted. The mute function is both pin and software controllable.Control of all on-chip registers is through a simple 3-wire interface. The ADF5355 operates with analog and digital power supplies ranging from 3.15 V to 3.45 V, with charge pump and VCO supplies from 4.75 V to 5.25 V. The ADF5355 also contains hardware and software power-down modes.Applications Wireless infrastructure (W-CDMA, TD-SCDMA, WiMAX, GSM, PCS, DCS, DECT) Point to point/point to multipoint microwave links Satellites/VSATs Test equipment/instrumentation Clock generation

The ADF5709 wideband, monolithic microwave integrated circuit (MMIC), voltage controlled oscillator (VCO) supports an output frequency (fOUT) range of 9.85 GHz to 20.5 GHz while maintaining ?83 dBc/Hz phase noise at 100 kHz offset without subharmonic tones. The wide frequency tuning range and low phase noise allow phase-locked loop (PLL) solutions for a variety of frequency bands and limit the need for multiple narrow-band VCOs. The broad frequency coverage reduces the board design complexity and simplifies the bill of materials when designing RF and microwave applications.The VCO operates from a single 5 V supply and consumes only 70 mA of supply current that results in minimal power dissipation. The ADF5709 low power consumption is ideal for high performance applications with limited or no airflow. The monolithic construction of the VCO allows optimal output power and noise characteristics over temperature variations.The VCO is fully integrated and incorporates a resonator, a negative resistance device, and a varactor diode that minimize the number of external components and reduces board space.The low input impedance on the VTUNE pin of the ADF5709 enables high tuning speed and modulation bandwidth, which allows faster frequency sweeps and lock times when used as part of a frequency synthesizer, for example, in radar or in test and measurement applications.The ADF5709 is encapsulated into a tiny, 3.90 mm ? 3.90 mm, RoHS compliant, ceramic leadless chip carrier (LCC) package. The package includes through vias to the exposed pad, enhancing thermal characteristics.The small size, optimal noise performance, low power consumption, and wide tuning range of the ADF5709 make the device ideal for many applications requiring flexibility, high performance, a small footprint, and a tight power budget. The ADF5709 is pin to pin compatible with the HMC733 and other Analog Devices, Inc., wideband VCOs.APPLICATIONSIndustrial and medical equipmentTest and measurement equipmentMilitary radars, electronic warfare (EW), and electronic countermeasures (ECMs)Point to point and multipoint radiosVery small aperture terminals (VSATs)Wireless communication infrastructure