DC323A-C: Demo Board for LTC1751 Micropower, Regulated Charge Pump DC/DC Converters.

32-Bit, 10 kSPS, Sigma-Delta ADC with100 s Settling and True Rail-to-Rail Buffers Features: 32-bit data output Fast and flexible output rate: 5 SPS to 10 kSPS Channel scan data rate of 10 kSPS/channel (100 µs settling) Performance specifications 19.1 noise free bits at 10 kSPS 20.2 noise free bits at 2.5 kSPS 24.6 noise free bits at 5 SPS INL: ±1 ppm of FSR 85 dB filter rejection of 50 Hz and 60 Hz with 50 ms settling User configurable input channels 2 fully differential channels or 4 single-ended channels Crosspoint multiplexer On-chip 2.5 V reference (±2 ppm/°C drift) True rail-to-rail analog and reference input buffers Internal or external clock See data sheet for additional features

The ADP1712?/ ADP1713 / ADP1714, available in a tiny, 5-lead TSOT package, are low dropout linear regulators that operate from 2.5 V to 5.5 V and provide up to 300 mA of output current. The low 170 mV dropout voltage at a 300 mA load improves efficiency and allows operation over a wide input voltage range. Using a novel scaling architecture, ground current is a very low 75 ?A when driving a 100 ?A load, making the ADP1712 / ADP1713 / ADP1714 ideal for battery-operated portable equipment.The ADP1712 / ADP1713 / ADP1714 are available in 16 fixed output voltage options. The ADP1712 is also available in an adjustable version, which allows output voltages that range from 0.8 V to 5 V via an external divider. The ADP1712 fixed version allows an external capacitor to be connected to program the soft-start time. The ADP1713 allows a reference bypass capacitor to be connected, which reduces output voltage noise and improves power supply rejection. The ADP1714 includes a tracking feature, which allows the output to follow an external voltage rail or reference.The ADP1712 / ADP1713 / ADP1714 are optimized for stable operation with small 2.2 ?F ceramic output capacitors, allowing good transient performance while occupying minimal board space. An enable pin controls the output voltage on all devices, and an undervoltage lockout circuit disables the regulator if IN drops below a minimum threshold. The parts also have short circuit protection and thermal overload protection, which prevent damage to the devices in adverse conditions.APPLICATIONS Mobile phones Digital camera and audio devices Portable and battery-powered equipment Post dc-dc regulation

The HMC1162 is a monolithic microwave integrated circuit (MMIC), voltage controlled oscillator (VCO) that integrates the resonator, a negative resistance device, and varactor diodes, 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 power output is 11 dBm typical from a 5 V supply voltage. The VCO is housed in a RoHS-compliant, 32-lead 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 HMC996LP4E is a GaAs PHEMT MMIC analog variable gain amplifier and / or driver amplifier which operates between 5 and 12 GHz. Ideal for microwave radio applications, the amplifier provides up to 18.5 dB of gain, output P1dB of up to +23 dBm, and up to +34 dBm of output IP3 at maximum gain, while requiring only 170 mA from a +5V supply. Gain control voltage pin (Vctrl) is provided to allow variable gain control up to 22 dB. Gain flatness is excellent making the HMC996LP4E ideal for EW, ECM and radar applications. The HMC996LP4E is housed in a RoHS compliant 4 x 4 mm QFN leadless package and is compatible with high volume surface mount manufacturing.Applications Point-to-Point Radio Point-to-Multi-Point Radio EW & ECM Subsystems? X-Band Radar Test Equipment & Sensors

The SSM6515 is a fully integrated, high efficiency, mono Class-D audio amplifier with digital input that is ideally suited for use in wireless headphones. The application circuit requires few external components and operates from a 1.8 V (PVDD) supply and a 1.2 V to 1.8 V (IOVDD) supply. With 1.8 V signaling, these can be shared. It can deliver 85 mW of continuous output power into a 16 ? load with 90% efficiency at 55 mW into a 16 ? load and it has a signal-to-noise ratio (SNR) of 113 dB, A weighted. Spread spectrum, stable common-mode pulse density modulation provides a much lower electromagnetic interference (EMI) radiated emissions compared with other Class-D architectures.The digital input eliminates the need of an external digital-to-analog converter (DAC). The SSM6515 has a micropower shutdown mode with a typical shutdown current of 6 ?A at the 1.8 V PVDD supply and can automatically power down with no input. The device also includes pop and click suppression circuitry that minimizes voltage glitches at the output during turn on and turn off. Inputs support various serial audio formats, including I2S, time division multiplexing (TDM), and pulse density modulation (PDM).The SSM6515 is designed to operate with an I2C control interface or in standalone mode and specified over the temperature range of ?40?C to +85?C. The device has built-in output short-circuit protection. The SSM6515 is available in a halide free, 11-ball, 0.984 mm ? 1.444 mm, 0.35 mm pitch wafer-level chip scale package (WLCSP).APPLICATIONS Wireless headphones Active noise canceling headphones Smartphone earpiece speakers Hearing assistance devices Portable electronics

The LT1999 is a high speed precision current sense amplifier, designed to monitor bidirectional currents over a wide common mode range. The LT1999 is offered in three gain options: 10V/V, 20V/V, and 50V/V.The LT1999 senses current via an external resistive shunt and generates an output voltage, indicating both magnitude and direction of the sensed current. The output voltage is referenced halfway between the supply voltage and ground, or an external voltage can be used to set the reference level. With a 2MHz bandwidth and a common mode input range of ?5V to 80V, the LT1999 is suitable for monitoring currents in H-Bridge motor controls, switching power supplies, solenoid currents, and battery charge currents from full charge to depletion.The LT1999 operates from an independent 5V supply and draws 1.55mA. A shutdown mode is provided for minimizing power consumption.The LT1999 is available in an 8-lead SOP, an 8-lead MSOP (original pinout), or an 8-lead pinout option engineered for FMEA.Applications High Side or Low Side Current Sensing H-Bridge Motor Control Solenoid Current Sense High Voltage Data Acquisition PWM Control Loops Fuse/MOSFET Monitoring

The ADF7020-1 is a low power, highly integrated FSK/ GFSK/ ASK/ OOK/ GOOK transceiver designed for operation in thelow UHF and VHF bands. The ADF7020-1 uses an externalVCO inductor that allows users to set the operating frequencyanywhere between 135 MHz and 650 MHz. Using the divide-by-2circuit allows users to operate the device as low as 80 MHz.The typical range of the VCO is about 10% of the operatingfrequency. A complete transceiver can be built using a smallnumber of external discrete components, making the ADF7020-1 very suitable for price-sensitive and area-sensitiveapplications.The transmit section contains a VCO and low noisefractional-N PLL with output resolution of <1 ppm. Thisfrequency agile PLL allows the ADF7020-1 to be used infrequency-hopping spread spectrum (FHSS) systems. The VCOoperates at twice the fundamental frequency to reduce spuriousemissions and frequency pulling problems.The transmitter output power is programmable in 63 steps from?20 dBm to +13 dBm. The transceiver RF frequency, channelspacing, and modulation are programmable using a simple 3-wire interface. The device operates with a power supply range of2.3 V to 3.6 V and can be powered down when not in useA low IF architecture is used in the receiver (200 kHz),minimizing power consumption and the external componentcount and avoiding interference problems at low frequencies.The ADF7020-1 supports a wide variety of programmablefeatures, including Rx linearity, sensitivity, and IF bandwidth,allowing the user to trade off receiver sensitivity and selectivityfor current consumption, depending on the application. Thereceiver also features a patent-pending automatic frequencycontrol (AFC) loop, allowing the PLL to compensate forfrequency error in the incoming signal.An on-chip ADC provides readback of an integrated temperaturesensor, an external analog input, the battery voltage, or theRSSI signal, which provides savings on an ADC in someapplications. The temperature sensor is accurate to ?10?C overthe full operating temperature range of ?40?C to +85?C. Thisaccuracy can be improved by doing a 1-point calibration atroom temperature and storing the result in memory.Applications Low cost wireless data transfer Wireless medical applications Remote control/security systems Wireless metering Keyless entry Home automation Process and building control

The HMC513LP5(E) is a GaAs InGaP Heterojunction Bipolar Transistor (HBT) MMIC VCOs. The HMC513LP5(E) integrates resonators, negative resistance devices, varactor diodes and feature half frequency and divide-by- 4 outputs. The VCO’s phase noise performance is excellent over temperature, shock, and process due to the oscillator’s monolithic structure. Power output is +7 dBm typical from a +3V supply voltage. The prescaler function can be disabled to conserve current if not required. The voltage controlled oscillator is packaged in a leadless QFN 5×5 mm surface mount package, and requires no external matching components.APPLICATIONS VSAT Radio Point-to-Point/Multi-Point Radio  Test Equipment & Industrial Controls  Military End-Use

The HMC1040LP3CE is a self-biased GaAs MMIC Low Noise Amplifier housed in a leadless 3x3 mm plastic surface mount package. The amplifier operates between 24 and 43.5 GHz, delivering 23 dB of small signal gain, 2.2 dB noise figure, and output IP3 of +22 dBm, while requiring only 70 mA from a +2.5 V supply. The P1dB output power of +12 dBm enables the LNA to function as a LO driver for many of Hittite’s balanced, I/Q and image reject mixers. The HMC1040LP 3CE features I/Os that are DC blocked and internally matched to 50 Ohms, and is ideal for high capacity microwave radios and VSAT applications.Applications Point-to-Point Radios Test Instrumentation SatCom Transponders & VSAT Industrial Sensors EW & ECM Subsystems