The LTC2356-12/LTC2356-14 are 12-bit/14-bit, 3.5Msps serial ADCs with differential inputs. The devices draw only 5.5mA from a single 3.3V supply and come in a tiny 10-lead MSOP package. A Sleep shutdown feature further reduces power consumption to 13?W. The combination of speed, low power and tiny package makes the LTC2356-12/LTC2356-14 suitable for high speed, portable applications.The 80dB common mode rejection allows users to eliminate ground loops and common mode noise by measuring signals differentially from the source.The devices convert ?1.25V to 1.25V bipolar inputs differentially. The absolute voltage swing for AIN+ and AIN? extends from ground to the supply voltage.The serial interface sends out the conversion results during the 16 clock cycles following a CONV rising edge for compatibility with standard serial interfaces. If two additional clock cycles for acquisition time are allowed after the data stream in between conversions, the full sampling rate of 3.5Msps can be achieved with a 63MHz clock. Bits LTC2356-12 12 LTC2356-14 14 Applications Communications Data Acquisition Systems Uninterrupted Power Supplies Multiphase Motor Control Multiplexed Data Acquisition RFID

DC1503A-A: Demo Board for the LTM2881 Complete Isolated RS485/RS422 µModule Transceiver Plus Power.

RF Amplifier dig Variable-Gain

The ADF4371 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 32 GHz to be generated.The ADF4371 has an integrated VCO with a fundamental output frequency ranging from 4000 MHz to 8000 MHz. In addition, the VCO frequency is connected to divide by 1, 2, 4, 8, 16, 32, or 64 circuits 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. A frequency quadrupler generates frequencies from 16 GHz to 32 GHz at RF32x. 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 multipliers and the output stages of RF16x and RF32x.Control of all on-chip registers is through a 3-wire interface. The ADF4371 operates with analog and digital power suppliesranging from 3.15 V to 3.45 V, and 5 V for the VCO power supply. The ADF4371 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 AD8278 and AD8279 are general-purpose difference amplifiers intended for precision signal conditioning in power critical applications that require both high performance and low power. The AD8278 and AD8279 provide exceptional common-mode rejection ratio (80 dB) and high bandwidth while amplifying input signals that are well beyond the supply rails. The on-chip resistors are laser trimmed for excellent gain accuracy and high CMRR. They also have extremely low gain drift vs. temperature.The common-mode range of the amplifier extends to almost triple the supply voltage (for G = ?), making the amplifer ideal for single-supply applications that require a high common-mode voltage range. The internal resistors and ESD circuitry at the inputs also provide overvoltage protection to the op amp.The AD8278 and AD8279 can be used as difference amplifiers with G = ? or G = 2. They can also be connected in a high precision, single-ended configuration for non inverting and inverting gains of ??, ?2, +3, +2, +1?, +1, or +?. The AD8278 and AD8279 provide an integrated precision solution that has a smaller size, lower cost, and better performance than a discrete alternative.The AD8278 and AD8279 operate on single supplies (2.0 V to 36 V) or dual supplies (?2 V to ?18 V). The maximum quiescent supply current is 200 ?A, which is ideal for battery-operated and portable systems. For unity-gain difference amplifiers with similar performance, refer to the AD8276 and AD8277 data sheets.The AD8278 is available in the space-saving 8-lead MSOP and SOIC packages, and the AD8279 is offered in a 14-lead SOIC package. Both are specified for performance over the industrial temperature range of ?40?C to +85?C and are fully RoHS compliant.ApplicationsVoltage measurement and monitoringCurrent measurement and monitoringInstrumentation amplifier building blockPortable, battery-powered equipmentTest and measurement

The AD8139 is an ultralow noise, high performance differentialamplifier with rail-to-rail output. With its low noise, highSFDR, and wide bandwidth, it is an ideal choice for drivinganalog-to-digital converters (ADCs) with resolutions to 18 bits.The AD8139 is easy to apply, and its internal common-modefeedback architecture allows its output common-mode voltageto be controlled by the voltage applied to one pin. The internalfeedback loop also provides outstanding output balance as wellas suppression of even-order harmonic distortion products. Fullydifferential and single-ended-to-differential gain configurationsare easily realized by the AD8139. Simple external feedbacknetworks consisting of four resistors determine the closed-loopgain of the amplifier. The AD8139 is manufactured on the proprietary Analog Devices,Inc., second-generation XFCB process, enabling it to achieve lowlevels of distortion with input voltage noise of only 2.25 nV/?Hz.The AD8139 is available in an 8-lead SOIC package with anexposed paddle (EP) on the underside of its body and a 3 mm ?3 mm LFCSP. It is rated to operate over the temperature rangeof ?40?C to +125?C.Applications ADC drivers to 18 bits Single-ended-to-differential converters Differential filters Level shifters Differential PCB drivers Differential cable drivers

DC1422A-C: Demo Board for the LTC6605-14 Dual Matched 14MHz Filter with Low Noise, Low Distortion Differential Amplifier.

The HMC454ST89(E) is a high dynamic range GaAs InGaP Heterojunction Bipolar Transistor (HBT) 1?2 watt MMIC amplifier operating between 0.4 and 2.5 GHz. Packaged in a low cost industry standard SOT89, the amplifier gain is typically 17.8 dB from 0.8 to 1.0 GHz and 12.5 dB from 1.8 to 2.2 GHz. Utilizing a minimum number of external components and a single +5V supply, the amplifier output IP3 can be optimized to +40 dBm at 0.9 GHz or +42 dBm at 2.0 GHz. The high output IP3 and PAE makes the HMC454ST89(E) an ideal driver amplifier for Cellular/PCS/3G, WLL, ISM and Fixed Wireless applications.Applications GSM, GPRS & EDGE? CDMA & W-CDMA? CATV/Cable Modem? Fixed Wireless & WLL

The ADP2138 and ADP2139 are high efficiency, low quiescent current, synchronous step-down dc-to-dc converters. The ADP2139 has the additional feature of an internal discharge switch. The total solution requires only three tiny external components. When the MODE pin is set high, the buck regulator operates in forced PWM mode, which provides low peak-to-peak ripple for power supply noise sensitive loads at the expense of light load efficiency. When the MODE pin is set low, the buck regulator automatically switches operating modes, depending on the load current level. At higher output loads, the buck regulator operates in PWM mode. When the load current falls below a predefined threshold, the regulator operates in power save mode (PSM), improving light load efficiency.The ADP2138/ADP2139 operate on input voltages of 2.3 V to 5.5 V, which allows for single lithium or lithium polymer cell, multiple alkaline or NiMH cell, PCMCIA, USB, and other standard power sources. The maximum load current of 800 mA is achievable across the input voltage range.The ADP2138/ADP2139 are available in fixed output voltages of 3.3 V, 3.0 V, 2.8 V, 2.5 V, 1.8 V, 1.5 V, 1.2 V, 1.0 V, and 0.8 V. All versions include an internal power switch and synchronous rectifier for minimal external part count and high efficiency. The ADP2138/ADP2139 have internal soft start and they are internally compensated. During logic controlled shutdown, the input is disconnected from the output and the ADP2138/ADP2139 draw 0.2 ?A (typical) from the input source.Other key features include undervoltage lockout to prevent deep battery discharge, and soft start to prevent input current overshoot at startup. The ADP2138/ADP2139 are available in a 6-ball wafer level chip scale package (WLCSP).Applications PDAs and palmtop computers Wireless handsets Digital audio, portable media players Digital cameras, GPS navigation units

DC1370A-H: Demo Board for the LTC2260-12 12-Bit, 105Msps Ultralow Power 1.8V ADCs