The ADAR7251 is a 16-bit, 4-channel, simultaneous sampling analog-to-digital converter (ADC) designed especially for applications such as automotive LSR-FMCW or FSK-FMCW radar systems. Each of the four channels contains a low noise amplifier (LNA), a programmable gain amplifier (PGA), an equalizer, a multibit Σ-Δ ADC, and a decimation filter.The front-end circuitry is designed to allow direct connection to an MMIC output with few external passive components. The ADAR7251 eliminates the need for a high order antialiasing filter, driver op amps, and external bipolar supplies. The ADAR7251 also offers precise channel-to-channel drift matching.The ADAR7251 features an on-chip phase-locked loop (PLL) that allows a range of clock frequencies for flexibility in the system. The CONV_START input and DATA_READY output signals synchronize the ADC with an external ramp for applications such as FSK-FMCW radar.The ADAR7251 supports serial and parallel interfaces at programmable sample rates from 300 kSPS to 1.8 MSPS, as well as easy connections to digital signal processors (DSPs) and microcontroller units (MCUs) in the system.APPLICATIONS Automotive LSR systems Data acquisition systems

The ADG5412F and ADG5413F contain four independently controlled single-pole/single-throw (SPST) switches. The ADG5412F has four switches that turn on with Logic 1 inputs. The ADG5413F has two switches with that turn on and two switches that turn off with Logic 1 inputs. Each switch conducts equally well in both directions when on, and each switch has an input signal range that extends to the supplies. The digital inputs are compatible with 3 V logic inputs over the full operating supply range.When no power supplies are present, the switch remains in the off condition, and the switch inputs are high impedance. Under normal operating conditions, if the analog input signal levels on any Sx pin exceed VDD or VSS by a threshold voltage, VT, then the switch turns off. Input signal levels up to +55 V or −55 V relative to ground are blocked, in both the powered and unpowered condition.The low on resistance of these switches, combined with on-resistance flatness over a significant portion of the signal range make them an ideal solution for data acquisition and gain switching applications where excellent linearity and low distortion are critical.Product Highlights Source pins are protected against voltages greater than the supply rails, up to −55 V and +55 V. Source pins are protected against voltages between −55 V and +55 V, in an unpowered state. Overvoltage detection with digital output indicates operating state of switches. Trench isolation guards against latch-up. Optimized for low on resistance and on-resistance flatness. The ADG5412F/ADG5413F can be operated from a dual supply of ±5 V up to ±22 V or a single power supply of 8 V up to 44 V.Applications Analog input/output modules Process control/distributed control systems Data acquisition Instrumentation Avionics Automatic test equipment Communication systems Relay replacement

The HMC1122 is a 6-bit digital attenuator operating from 0.1 GHz to 6 GHz with a 31.5 dB attenuation control range in 0.5 dB steps.The HMC1122 is implemented in a silicon process, offering very fast settling time, low power consumption, and high ESD robustness. The device features safe state transitions and optimized for excellent step accuracy and high linearity over frequency and temperature range. The RF input and output are internally matched to 50 Ω and do not require any external matching components. The design is bidirectional; therefore, the RF input and output are interchangeable.The HMC1122 operates on a single supply ranging from 3.3 V to 5 V with no performance change due to an on-chip regulator.The device incorporates a driver that provides both serial and parallel control of the attenuator. The device also features a user-selectable power-up state and a serial output port for cascading other serial controlled components.The HMC1122 comes in a RoHS compliant, compact, 4 mm × 4 mm LFCSP package, and is pin compatible to the HMC624A.A fully populated evaluation board is available. Applications Cellular infrastructure Microwave radios and very small aperture terminals (VSATs) Test equipment and sensors IF and RF designs

The HMC7950 is a gallium arsenide (GaAs), pseudomorphic high electron mobility transistor (pHEMT), monolithic microwave integrated circuit (MMIC). The HMC7950 is a wideband low noise amplifier that operates between 2 GHz and 28 GHz. The amplifier typically provides 15 dB of gain, 2.0 dB of noise figure, 26 dBm of output IP3, and 16 dBm of output power for 1 dB gain compression, requiring 64 mA from a 5 V supply. The HMC7950 is self biased with only a single positive supply needed to achieve a drain current, IDD, of 64 mA. The HMC7950 also has a gain control option, VGG2. The HMC7950 amplifier input/outputs are internally matched to 50 Ω and dc blocked. It comes in a 6 mm × 6 mm, 16-terminal LCC SMT ceramic package that is easy to handle and assemble.APPLICATIONS Test instrumentation Military and space

The HMC7992 is a general-purpose, nonreflective, 0.1 GHz to 6.0 GHz, silicon, single-pole, four-throw (SP4T) switch in aleadless, surface-mount package. The switch is ideal for cellular infrastructure applications, offers high isolation of 45 dB typical at 2 GHz, and a low insertion loss of 0.6 dB at 2 GHz. It offers excellent power handling capability up to 6.0 GHz, with inputpower of 1 dB compression point (P1dB) of 35 dBm at 5 V operation. The HMC7992 has good low frequency input power handling below 0.1 GHz and can operate well down to 10 kHz, with a typical 1 dB compression of 21 dBm and an IIP3 of 37 dBm at 1 MHz.The on-chip circuitry allows the HMC7992 to operate at a single, positive supply voltage range from 3.3 V to 5 V, and as well as a single, positive control voltage from 0 V to 1.8 V/3.3 V/5.0 V. A 2:4 decoder integrated in the switch requires only two controlled input signals, with a positive control voltage range from 0 V to 1.8 V/3.3 V/5.0 V, to select one of the four radio frequency (RF)paths.Applications Cellular/4G infrastructure Wireless infrastructure Automotive telematics Mobile radios Test equipment

The HMC802ALP3E is a broadband bidirectional 1-bitGaAs IC digital attenuator in a low cost leadless sur-face mount package. This single positive control linedigital attenuator utilizes off chip AC ground capac-itors for near DC operation, making it suitable for awide variety of RF and IF applications. Covering DCto 10 GHz, the insertion loss is less than 3 dB typicaland attenuation accuracy is excellent at ±0.6 dB typ-ical. The attenuator also features a high IIP3 of +55dBm. One TTL/CMOS control input is used to selectthe attenuation state and a single Vdd bias of +5V isrequired. Applications Test equipment and sensors ISM, MMDS, WLAN, WiMAX, WiBro Microwave radio & VSAT Cellular infrastructure

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 HMC939ALP4E is a 5-bit digital attenuator with a 31 dBattenuation control range in 1 dB steps.The HMC939ALP4E offers optimum insertion loss, attenuationaccuracy, and input linearity over the specified frequency rangefrom 100 MHz to 33 GHz.The HMC939ALP4E requires dual supply voltages, VDD = +5 Vand VSS = −5 V, and provides CMOS-/TTL-compatible parallelcontrol interface by incorporating an on-chip driver.The HMC939ALP4E comes in a RoHS compliant, compact,4 mm × 4 mm LFCSP package. See HMC939A-DIE for the dieversion of HMC939ALP4E.Applications Test instrumentation Microwave radios and very small aperture terminals (VSATs) Military radios, radars, electronic counter measures (ECMs) Broadband telecommunications systems

The SC2200 belongs to the 4th-generation family of RF PA linearizers (RFPAL) that provides increased integration and functionality over the previous generations. The device is a dual-path linearizer that is a fully-adaptive, RFIN/RFOUT predistortion linearization solution optimized for a wide range of amplifiers, power levels, and communication protocols. It supports 2G to 4G standards (FDD and TDD) from 698MHz to 2700MHz as well as an expanded range of signal bandwidths from 60MHz down to 1.2MHz. The SC2200 accepts single-ended RF signals to eliminate baluns and features a mirrored pinout facilitating design of both paths. The device uses the PA output and input signals to adaptively generate an optimized correction function to minimize the PA’s distortion. Using RF-domain analog signal processing enables the SC2200 to operate over wide bandwidths and with very low power consumption. The dual linearizer is optimized for high-performance MIMO applications, including small cells, active antenna, and distributed antenna systems.SC2200 and SC1894 RF Power Amplifier Linearizers RF Power Amplifier Linearization Technology ApplicationsAmplifier: Class A/AB, DohertyAverage PA Output Power Examples: Cellular Infrastructure: 27dBm to 40dBmBTS Amplifiers, RRH, Booster Amplifiers, Repeaters, Small Cells, Microcells, Picocells, DAS, AAS and MIMO SystemsCellular InfrastructurePA Process: LDMOS, GaN, HBT, GaAs and InGaPSingle/Multicarrier, Multistandard: CDMA/EVDO, TD-SCDMA, WiMAX, WCDMA/HSDPA, LTE, and TD-LTEWide Range of PAs and Output Power

The AD5110 provides a nonvolatile solution for 128-position adjustment applications, offering guaranteed low resistor tolerance errors of ±8% and up to ±6 mA current density in the A, B, and W pins. The low resistor tolerance, low nominal temperature coefficient and high bandwidth simplify open-loop applications, as well as tolerance matching applications.The new low wiper resistance feature minimizes the wiper resistance in the extremes of the resistor array to only 45 Ω,typical.The wiper settings are controllable through an I2C-compatible digital interface that is also used to readback the wiper register and EEPROM content. Resistor tolerance is stored within EEPROM, providing an end-to-end tolerance accuracy of 0.1%.The AD5110 is available in a 2 mm × 2 mm LFCSP package. The parts are guaranteed to operate over the extended industrial temperature range of −40°C to +125°C.APPLICATIONS Mechanical potentiometer replacement Portable electronics level adjustment Audio volume control Low resolution DAC LCD panel brightness and contrast control Programmable voltage to current conversion Programmable filters, delays, time constants Feedback resistor programmable power supply Sensor calibration