The LT6604-15 consists of two matched, fully differential amplifiers, each with a 4th order, 15MHz lowpass ?lter. The ?xed frequency lowpass ?lter approximates a Chebyshev response. By integrating a ?lter and a differential amplifier, distortion and noise are made exceptionally low. At unity gain, the measured in band signal-to-noise ratio is an impressive 76dB. At higher gains, the input referred noise decreases, allowing the part to process smaller input differential signals without significantly degrading the signal-to-noise ratio.Gain and phase are highly matched between the two channels. Gain for each channel is independently programmed using two external resistors. The LT6604-15 enables level shifting by providing an adjustable output common mode voltage, making it ideal for directly interfacing to ADCs.The LT6604-15 is fully specified for 3V operation. The differential design enables outstanding performance at a 2VP-P signal level for a single 3V supply. See the back page of this datasheet for a complete list of related single and dual differential amplifiers with integrated 2.5MHz to 20MHz lowpass ?lters.Applications Dual Differential ADC Driver Plus Filter Single-Ended to Differential Converter Matched, Dual, Differential Filter Stage Common Mode Translation of Differential Signals High Speed ADC Antialiasing and DAC Smoothing in Wireless Infrastructure or Networking Applications High Speed Test and Measurement Equipment Medical Imaging

Demonstration Circuit 1419 is a 1.5MHz current mode step-down switching regulator with programmable output current limit featuring the LT3663. The current limit accurately controls the system power dissipation and reduces the size of the power path components. The demo board operates with a 7.5V to 36V (60 transients) input voltage range. The output can be set to 3.3V or 5V using jumper J4, and the current limit can be set to 0.6V, 0.8V, 1V or 1.2V using jumpers J2 and J3.

The LTC6605-7 contains two independent, fully differential amplifiers configured as matched 2nd order lowpass filters. The f?3dB of the filters is adjustable in the range of 6.5MHz to 10MHz.The internal op amps are fully differential, feature very low noise and distortion, and are compatible with 16-bit dynamic range systems. The inputs can accept single ended or differential signals. An input pin is provided for each amplifier to set the common mode level of the differential outputs.Internal laser-trimmed resistors and capacitors determine a precise, very well matched (in gain and phase) 7MHz 2nd order filter response. A single optional external resistor per channel can tailor the frequency response for each amplifier.Three-state BIAS pins determine each amplifier?s power consumption, allowing a choice between shutdown, medium power or full power.The LTC6605-7 is available in a compact 6mm ? 3mm 22-pin leadless DFN package and operates over a ?40?C to 85?C temperature range.Applications WCDMA ADC Driver/Filter Antialiasing Filter Single-Ended to Differential Conversion DAC Smoothing Filter Zero-IF Direct Conversion Receivers

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

DC1423A: Demo Board for the LT3571 75V DC/DC Converter for APD Bias.

The HMC472ALP4E are broadband 6-bit GaAs IC digital attenuators in low cost leadless surface mount packages. This single positive control line per bit digital attenuator incorporates off chip AC ground capacitors for near DC operation, making it suitable for a wide variety of RF and IF applications. Covering DC to 3.8 GHz, the insertion loss is less than 2.0 dB typical. The attenuator bit values are 0.5 (LSB), 1, 2, 4, 8, and 16 dB for a total attenuation of 31.5 dB. Attenuation accuracy is excellent at ? 0.25 dB typical step error with an IIP3 of +54 dBm. Six TTL/CMOS control inputs are used to select each attenuation state. A single Vdd bias of +5V is required.APPLICATIONSThe HMC472ALP4E is ideal for: 3G Infrastructure & access points? Cellular/3G, LTE & UMB WiMAX, WiBN & Fixed Wireless? Test Equipment and Sensors GSM, WCDMA & TD-SCDMA

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 HMC356LP3(E) is a high dynamic range GaAs PHEMT MMIC Low Noise Amplifier is ideal for GSM & CDMA cellular basestation and Mobile Radio front-end receivers operating between 350 and 550 MHz. This LNA has been optimized to provide 1 dB noise figure, 17 dB gain and +38 dBm output IP3 from a single supply of +5V @ 104 mA. Input and output return losses are 15 dB typical, with the LNA requiring only four external components to optimize the RF input match, RF ground and DC bias.Applications GSM 450 & GSM 480 CDMA 450 Private Land Mobile Radio

The HMC368LP4(E) is a miniature amp-doubler-amps utilizing GaAs PHEMT technology in 4 ? 4 mm leadless surface mount package. When driven by a +2 dBm signal, the multiplier provides +15 dBm typical output power from 9 to 16 GHz. The Fo and the 3Fo isolations are 18 dB typical. The low additive SSB phase noise of ?140 dBc/Hz at 100 kHz offset helps the user maintain good system noise performance. The HMC368LP4(E) is ideal for use in LO multiplier chains allowing reduced parts count vs. traditional approaches.APPLICATIONS Microwave Radios & VSAT Fiber Optic Infrastructure Military Communications & Radar

The HMC453QS16G(E) is a high dynamic range GaAs InGaP Heterojunction Bipolar Transistor (HBT) 1.6 watt MMIC power amplifier operating between 0.4 and 2.2 GHz. Packaged in a miniature 16 lead QSOP plastic package, the amplifier gain is typically 21.5 dB at 0.4 GHz and 8 dB at 2.1 GHz. Utilizing a minimum number of external components and a single +5V supply, the amplifier output IP3 can be optimized to +47 dBm at 0.4 GHz or +51 dBm at 2.1 GHz. The power control (VPD) can be used for full power down or RF output power/current control. The high output IP3 and PAE make the HMC453QS16G(E) ideal power amplifier for Cellular/ PCS/3G, WLL, ISM and Fixed Wireless applications.Applications GSM, GPRS & EDGE? CDMA & W-CDMA? CATV/Cable Modem? Fixed Wireless & WLL