The ADL5306 is a low cost micro-miniature logarithmic converter optimized for the determination of optical power in fiber-optic systems. It uses an advanced implementation of a classic translinear (junction-based) technique to provide a large dynamic range in a versatile and easily-used form. A single supply voltage of between 3 V and 5.5 V is adequate; dual supplies may optionally be used. The low quiescent current (typically 5 mA) permits use in battery-operating applicationsThe input current IPD of 100 nA to 100 ?A applied to the INPT pin is the collector current of an optimally-scaled NPN transistor, which converts this current to a voltage (its VBE) with a precise logarithmic relationship. A second such converter is used to handle the reference current, IREF, applied to pin IREF. These input nodes are biased slightly above ground (0.5 V). This is generally acceptable for photodiode applications where the anode does not need to be grounded. Similarly, this bias voltage is easily accounted for in generating IREF. The output of the logarithmic front-end is available at pin VLOG.

The ADL5500 is a mean-responding power detector for use in high frequency receiver and transmitter signal chains from 100 MHz to 6 GHz. It is easy to apply, requiring only a single supply between 2.7 V and 5.5 V and a power supply decoupling capacitor. The input is internally ac-coupled and has a nominal input impedance of 50 ?. The output is a linear-responding dc voltage with a conversion gain of 6.4 V/V rms at 900 MHz. The on-chip, 1 k? series resistance at the output combined with an external shunt capacitor creates a low-pass filter response that reduces the residual ripple in the dc output voltage.The ADL5500 is intended for true power measurement of simple and complex waveforms. The device is particularly useful for measuring high crest factor (high peak-to-rms ratio) signals, such as CDMA2000, W-CDMA, and QPSK/QAM-based OFDM waveforms.The ADL5500 offers excellent temperature stability with near 0 dB measurement error across temperature. The high accuracy range, centered around +3 dBm at 900 MHz, offers ?0.1 dB error from ?40?C to +85?C over an 8.5 dB range. The ADL5500 reduces calibration requirements with low drift across a 30 dB range over temperature and process variations.The ADL5500 operates from ?40?C to +85?C and is available in a 4-ball, 1.0 mm ? 1.0 mm wafer-level chip scale package. It is fabricated on a proprietary high fT silicon bipolar process.

The ADL5505 is a TruPwr? mean-responding (true rms) powerdetector for use in high frequency receiver and transmitter signalchains from 450 MHz to 6000 MHz. Requiring only a singlesupply between 2.5 V and 3.3 V, the detector draws less than1.8 mA. The input is internally ac-coupled and has a nominalinput impedance of 500 ?. The rms output is a linear-respondingdc voltage with a conversion gain of 1.86 V/V rms at 900 MHz.The ADL5505 is a highly accurate, easy to use means ofdetermining the rms of complex waveforms. It can be used forpower measurements of both simple and complex waveformsbut is particularly useful for measuring high crest factor (highpeak-to-rms ratio) signals, such as W-CDMA, CDMA2000,WiMAX, WLAN, and LTE waveforms.The on-chip modulation filter provides adequate averaging formost waveforms. An on-chip, 100 ? series resistance at theoutput, combined with an external shunt capacitor, creates a low-passfilter response that reduces the residual ripple in the dc outputvoltage.The ADL5505 offers excellent temperature stability across a30 dB range and near 0 dB measurement error across temperatureover the top portion of the dynamic range. In addition to itstemperature stability, the ADL5505 offers low process variationsthat further reduce calibration complexity.The power detector operates from ?40?C to +85?C and isavailable in an 4-ball, 0.8 mm ? 0.8 mm wafer-level chip scalepackage. It is fabricated on a high fT silicon BiCMOS process.Applications Power measurement of W-CDMA, CDMA2000, QPSK-/QAM-based OFDM (LTE and WiMAX), and other complex modulation waveforms RF transmitter or receiver power measurement

The ADL5535 is a 16 dB linear amplifier that operates at frequencies up to 1 GHz. The device can be used in a wide variety of cellular, CATV, military, and instrumentation equipment.The ADL5535 provides the highest dynamic range available from an internally matched IF gain block. This is accomplished by providing extremely low noise figures and very high OIP3 specifications simultaneously across the entire 1 GHz frequency range. The ADL5535 also provides extremely flat gain and P1dB over frequency, which are stable over temperature, power supply, and from device to device.The device is internally matched to 50 ? at the input and output, making the ADL5535 very easy to implement in a wide variety of applications. Only input/output ac coupling capacitors, power supply decoupling capacitors, and an external inductor are required for operation.The ADL5535 is fabricated on a GaAs HBT process and has an ESD rating of ?2 kV (Class 2). The device is assembled in an MSL-1 rated SOT-89 package that uses an exposed paddle for excellent thermal impedance.The ADL5535 consumes only 97 mA on a single 5 V supply and is fully specified for operation from ?40?C to +85?C.The ADL5535 is also pin-compatible with the 20 dB gain ADL5536. Fully populated evaluation boards are available for each amplifier.

The ADL5725 is a narrow-band, high performance, low noise amplifier (LNA) targeting microwave radio link receiver designs. The monolithic silicon germanium (SiGe) design is optimized for microwave radio link bands ranging from 17.7 GHz to 19.7 GHz. The unique design offers a single-ended 50 ? input impedance and provides a 100 ? balanced differential output that is ideal for driving Analog Devices, Inc., differential downconverters and radio frequency (RF) sampling analog-to-digital converters (ADCs). This low noise amplifier provides noise figure performance that, in the past, required more expensive three-five (III-V) compounds process technology to achieve.The ADL5721 and ADL5723 to ADL5726 family of narrow-band LNAs are each packaged in a tiny, thermally enhanced, 2.00 mm ? 2 mm LFCSP package. The ADL5721 and ADL5723 to ADL5726 family operates over the temperature range of ?40?C to +85?C.Applications Point to point microwave radios Instrumentation Satellite communications (SATCOM) Phased arrays

The ADP1052 is an advanced digital controller with a PMBus? interface targeting high density, high efficiency, dc-to-dc power conversion. This controller implements voltage mode control with high speed, input line feedforward for enhanced transient and improved noise performance. The ADP1052 has six programmable pulse-width modulation (PWM) outputs capable of controlling most high efficiency power supply topologies, with added control of synchronous rectification (SR). The device includes adaptive dead time compensation to improve efficiency over the load range, and programmable light load mode operation, combined with low power consumption, to reduce system standby power losses.The ADP1052 implements several features to enable a robust system of parallel and redundant operation for customers that require high availability or parallel connection. The device provides synchronization, reverse current protection, prebias startup, accurate current sharing between power supplies, and conditional overvoltage techniques to identify and safely shut down an erroneous power supply in parallel operation mode.The ADP1052 is based on flexible state machine architecture and is programmed using an intuitive GUI. The easy to use interface reduces design cycle time and results in a robust, hardware coded system loaded into the built-in EEPROM. The small size (4 mm ? 4 mm) LFCSP package makes the ADP1052 ideal for ultracompact, isolated dc-to-dc power module or embedded power designs.APPLICATIONS High density isolated dc-to-dc power supplies Intermediate bus converters High availability parallel power systems Server, storage, industrial, networking, and communications infrastructure

The LTC2338-18 is a low noise, high speed 18-bit successive approximation register (SAR) ADC with fully differential inputs. Operating from a single 5V supply, the LTC2338-18 has a ?10.24V true bipolar input range, making it ideal for high voltage applications which require a wide dynamic range. The LTC2338-18 achieves ?4LSB INL maximum, no missing codes at 18-bits with 100dB SNR.The LTC2338-18 has an on-board single-shot capable reference buffer and low drift (20ppm/?C max) 2.048V temperature compensated reference. The LTC2338-18 also has a high speed SPI-compatible serial interface that supports 1.8V, 2.5V, 3.3V and 5V logic while also featuring a daisy-chain mode. The fast 1Msps throughput with no cycle latency makes the LTC2338-18 ideally suited for a wide variety of high speed applications. An internal oscillator sets the conversion time, easing external timing considerations. The LTC2338-18 dissipates only 50mW and automatically naps between conversions, leading to reduced power dissipation that scales with the sampling rate. A sleep mode is also provided to reduce the power consumption of the LTC2338-18 to 300?W for further power savings during inactive periods.Applications Programmable Logic Controllers Industrial Process Control High Speed Data Acquisition Portable or Compact Instrumentation ATE

The LTC2336-18 is a low noise, high speed 18-bit successive approximation register (SAR) ADC with fully differential inputs. Operating from a single 5V supply, the LTC2336-18 has a ?10.24V true bipolar input range, making it ideal for high voltage applications which require a wide dynamic range. The LTC2336-18 achieves ?4LSB INL maximum, no missing codes at 18-bits with 100dB SNR.The LTC2336-18 has an onboard single-shot capable reference buffer and low drift (20ppm/?C max) 2.048V temperature compensated reference. The LTC2336-18 also has a high speed SPI-compatible serial interface that supports 1.8V, 2.5V, 3.3V and 5V logic while also featuring a daisy-chain mode. The fast 250ksps throughput with no cycle latency makes the LTC2336-18 ideally suited for a wide variety of high speed applications. An internal oscillator sets the conversion time, easing external timing considerations. The LTC2336-18 dissipates only 28mW and automatically naps between conversions, leading to reduced power dissipation that scales with the sampling rate. A sleep mode is also provided to reduce the power consumption of the LTC2336-18 to 300?W for further power savings during inactive periods.Applications Programmable Logic Controllers Industrial Process Control High Speed Data Acquisition Portable or Compact Instrumentation ATE

The LTC1546 is a 3-driver/3-receiver multiprotocol transceiver with on-chip cable termination. When combined with the LTC1544, this chip set forms a complete software-selectable DTE or DCE interface port that supports the RS232, RS449, EIA530, EIA530-A, V.35, V.36 and X.21 protocols. All necessary cable termination is provided inside the LTC1546. In most applications, the LTC1546 replaces both an LTC1543 and an LTC1344A without any changes to the PC board.The LTC1546 runs from a single 5V supply using an internal charge pump that requires only five space-saving surface mounted capacitors. The LTC1546 is available in a 28-lead SSOP surface mount package.Applications Data Networking CSU and DSU Data Routers

The LT3952A is a current mode step-up DC/DC converter with an internal, 60V, 80m? DMOS power switch. The LT3952A is specifically designed to drive high power LEDs in multiple configurations. It combines input and output current regulation loops with output voltage regulation to operate as a flexible current/voltage source.Programmable switching frequency with optional spread-spectrum modulation provides EMI reduction, while still allowing optimization of the external components for efficiency or component size. The LED current is programmable with an external sense resistor, and can be adjusted from zero to full scale with a voltage at the CTRL pin. The external PWM input provides LED ON/OFF control and 4000:1 dimming ratio, and an internal PWM generator delivers the efficiency of PWM dimming to standalone or I/O limited applications. The LT3952A is available in the thermally enhanced 28-lead TSSOP package.Applications Display Backlighting Automotive and Avionic Lighting Accurate Current-Limited Voltage Regulators