The LTC4367 protects applications where power supply input voltages may be too high, too low or even negative. It does this by controlling the gate voltages of a pair of external N-channel MOSFETs to ensure that the output stays within a safe operating range.The LTC4367 withstands voltages between –40V and 100V and has an operating range of 2.5V to 60V, while consuming only 70μA in normal operation.Two comparator inputs allow configuration of the overvoltage (OV) and undervoltage (UV) set points using an external resistive divider. A shutdown pin provides external control for enabling and disabling the MOSFETs as well as placing the device in a low current shutdown state. A fault output indicates that the GATE pin is pulling low when the part is in shutdown or the input voltage is outside the UV and OV set points.The LTC4367 has a 32ms turn-on delay that debounces live connections and blocks 50Hz to 60Hz AC power. For fast recovery after faults, the LTC4367-1 has a reduced turn-on delay of 500μs.Applications Portable InstrumentationIndustrial AutomationAutomotive Surge (Load Dump) ProtectionNetwork Equipment

The ADF4155 allows implementation of fractional-N or integer-N phase-locked loop (PLL) frequency synthesizers when used with an external loop filter, external voltage controlled oscillator (VCO), and external reference frequency.The ADF4155 is for use with external VCO parts up to an 8 GHz operating frequency. The high resolution programmable modulus allows synthesis of exact frequencies with 0 Hz error.The VCO frequency can be divided by 1, 2, 4, 8, 16, 32, or 64 to allow the user to generate RF output frequencies as low as 7.8125 MHz.Control of all on-chip registers is through a simple 3-wire interface. The device operates with a nominal power supply of 3.3 V ± 5% and can be powered down when not in use.The ADF4155 is available in a 24-lead, 4 mm × 4 mm LFCSP package.APPLICATIONS Wireless infrastructure (W-CDMA, TD-SCDMA, WiMAX, GSM, PCS, DCS, DECT) Point to point/point to multipoint microwave links Test equipment Wireless LANs, CATV equipment Clock generation

The ADXRS290 is a high performance pitch and roll (dual-axis in-plane) angular rate sensor (gyroscope) designed for use in stabilization applications.The ADXRS290 provides an output full-scale range of ±100°/s with a sensitivity of 200 LSB/°/s. Its resonating disk sensor structure enables angular rate measurement about the axes normal to the sides of the package around an in-plane axis. Angular rate data is formatted as 16-bit twos complement and is accessible through a SPI digital interface. The ADXRS290 exhibits a low noise floor of 0.004°/s/√Hz and features programmable high-pass and low-pass filters.The ADXRS290 is available in a 4.5 mm × 5.8 mm × 1.2 mm, 18-terminal cavity laminate package.APPLICATIONS Optical image stabilization Platform stabilization Wearable products

The HMC1167 is a monolithic microwave integrated circuit (MMIC) voltage controlled oscillator (VCO) that integrates a resonator, a negative resistance device, and a varactor diode, and features a half frequency output. Because of the monolithic construction of the oscillator, the output power and phase noise performance are excellent over temperature.The output power is 10.5 dBm typical from a 5 V supply voltage. The VCO is housed in a RoHS-compliant LFCSP and requires no external matching components.Applications Point to point and multipoint radios Test equipment and industrial controls Very small aperture terminals (VSATs)

The HMC349AMS8G is a gallium arsenide (GaAs), pseudo-morphic high electron mobility transistor (PHEMT), single-pole, double throw (SPDT) switch specified from 100 MHz to 4 GHz.The HMC349AMS8G is well suited for cellular infrastructure applications by yielding high isolation of 57 dB, low insertionloss of 0.9 dB, high input IP3 of 52 dBm, and high input P1dB of 34 dBm.The HMC349AMS8G operates with a single positive supply voltage from 3 V to 5 V and provides a CMOS-/TTL-compatible control interface.The HMC349AMS8G comes in an 8-lead mini small outline package with an exposed pad.Applications Cellular/4G infrastructure Wireless infrastructure  Mobile radios  Test equipment

The HMC435AMS8G(E) is a non-reflective DC to4 GHz GaAs MESFET SPDT switch in a low cost 8lead MSOP8G surface mount package with exposedground paddle. The switch is ideal for cellular/3G andWiMAX/4G applications yielding up to 60 dB isolation,low 0.8 dB insertion loss and +50 dBm input IP3. Powerhandling is excellent up through the 3.8 GHz WiMAXband with the switch offering a P1dB compression of+30 dBm. On-chip circuitry allows positive voltagecontrol of 0/+5 Volts at very low DC currents.APPLICATIONS Basestations & Repeaters Cellular/3G and WiMAX/4G Infrastructure and Access Points CATV/CMTS Test Instrumentation

The HMC797APM5E is a GaAs MMIC pHEMT Distributed Power Amplifier which operates between DC and 22 GHz. The amplifier provides 15 dB of gain, +29 dBm of output power at 1 dB gain compression, +31 dBm of saturated output power, and 25% PAE while requiring 400 mA from a +10 V supply. With up to +41 dBm of output IP3, the HMC797APM5E is ideal for high linearity applications in military and space as well as test equipment where high order modulations are used. This versatile PA exhibits a positive gain slope from 2 to 20 GHz making it ideal for EW, ECM, Radar and test equipment applications. The HMC797APM5E amplifier I/Os are internally matched to 50 Ω facilitating integration into mutli-chip-modules (MCMs), is packaged in a leadless QFN 5x5 mm surface mount package, and requires no external matching components.Applications Test Instrumentation Military & Space Fiber Optics

The HMC936ALP6E is a 6-bit digital phase shifterwhich is rated from 1.2 to 1.4 GHz, providing 360degrees of phase coverage, with a LSB of 5.625degrees. The HMC936ALP6E features very low RMSphase error of 1.2 degrees and extremely low inser-tionloss variation of ±0.5 dB across all phase states. Thishigh accuracy phase shifter is controlled with positivecontrol logic of 0/+5V and requires no negative supplyvoltage. The HMC936ALP6E is housed in a compact6x6 mm plastic leadless SMT package and is internallymatched to 50 Ohms with no external components.Applications EW receivers  Weather and military radar Satellite communications Beamforming modules Phase cancellation

RF Amplifier lo Noise amp SMT, 3.5 - 7.0 GHz

The AD5689R/AD5687R members of the nanoDAC+™ family are low power, dual, 16-/12-bit buffered voltage output digital-to-analog converters (DACs). The devices include a 2.5 V, 2 ppm/°C internal reference (enabled by default) and a gain select pin giving a full-scale output of 2.5 V (gain = 1) or 5 V (gain = 2). The devices operate from a single 2.7 V to 5.5 V supply, are guaranteed monotonic by design, and exhibit less than 0.1% FSR gain error and 1.5 mV offset error performance. Both devices are available in a 3 mm × 3 mm LFCSP and a TSSOP package.The AD5689R/AD5687R also incorporate a power-on reset circuit and a RSTSEL pin that ensure that the DAC outputs power up to zero scale or midscale and remain there until a valid write takes place. Each part contains a per channel power-down feature that reduces the current consumption of the device to 4 μA at 3 V while in power-down mode.The AD5689R/AD5687R use a versatile serial peripheral interface (SPI) that operates at clock rates up to 50 MHz. Both devices contain a VLOGIC pin that is intended for 1.8 V/3 V/5 V logic.Product Highlights High Relative Accuracy (INL). AD5689R (16-bit): ±2 LSB maximum AD5687R (12-bit): ±1 LSB maximum Low Drift 2.5 V On-Chip Reference. 2 ppm/°C typical temperature coefficient 5 ppm/°C maximum temperature coefficient  Two Package Options. 3 mm × 3 mm, 16-lead LFCSP 16-lead TSSOPApplications Optical transceivers Base station power amplifiers Process control (PLC I/O cards) Industrial automation Data acquisition systems