The AD8319 is a demodulating logarithmic amplifier, capable of accurately converting an RF input signal to a corresponding decibel-scaled output. It employs the progressive compression technique over a cascaded amplifier chain, each stage of which is equipped with a detector cell. The device can be used in either measurement or controller modes. The AD8319 maintains accurate log conformance for signals of 1 MHz to 8 GHz and provides useful operation to 10 GHz. The input dynamic range is typically 40 dB (re: 50 ?) with error less than ?1 dB. The AD8319 has 8 ns/10 ns response time (fall time/rise time) that enables RF burst detection to a pulse rate of beyond 50 MHz. The device provides unprecedented logarithmic intercept stability vs. ambient temperature conditions. A supply of 3.0 V to 5.5 V is required to power the device. Current consumption is typically 22 mA, and it decreases to 200 ?A when the device is disabled.?The AD8319 can be configured to provide a control voltage to a power amplifier or a measurement output from the VOUT pin. Because the output can be used for controller applications, special attention was paid to minimize wideband noise. In this mode, the setpoint control voltage is applied to the VSET pin.The feedback loop through an RF amplifier is closed via VOUT, the output of which regulates the amplifier?s output to a magnitude corresponding to VSET. The AD8319 provides 0 V to (VPOS ? 0.1 V) output capability at the VOUT pin, suitable for controller applications. As a measurement device, VOUT is externally connected to VSET to produce an output voltage, VOUT, that is a decreasing linear-in-dB function of the RF input signal amplitude.The logarithmic slope is ?22 mV/dB, determined by the VSET interface. The intercept is 15 dBm (re: 50 ?, CW input) using the INHI input. These parameters are very stable against supply and temperature variations.The AD8319 is fabricated on a SiGe bipolar IC process and is available in a 2 mm ? 3 mm, 8-lead LFCSP_VD for an operating temperature range of ?40?C to +85?C.ApplicationsRF transmitter PA setpoint controls and level monitoring Power monitoring in radiolink transmitters RSSI measurement in base stations, WLANs, WiMAX, and radars

The AD8332 is a dual channel ultralow noise, linear-in-dB, variable gain amplifier (VGA). Optimized for ultrasound systems, they are usable as a low noise variable gain element at frequencies up to 120 MHz.Included in each channel are an ultralow noise preamplifier (LNA), an X-AMP? VGA with 48 dB of gain range, and a selectable gain postamplifier with adjustable output limiting. The LNA gain is 19 dB with a single-ended input and differential outputs. Using a single resistor, the LNA input impedance can be adjusted to match a signal source without compromising noise performance.The 48 dB gain range of the VGA makes these devices suitable for a variety of applications. Excellent bandwidth uniformity is maintained across the entire range. The gain control interface provides precise linear-in-dB scaling of 50 dB/V for control voltages between 40 mV and 1 V. Factory trim ensures excellent part-to-part and channel-to-channel gain matching. Differential signal paths result in superb second- and third-order distortion performance and low crosstalk.The operating temperature range is -40?C to +85?C. The AD8332 is available in a 28-lead TSSOP and 32-lead LFCSP packages.The AD8332 is a dual version of the single AD8331 and quad AD8334.Applications Ultrasound and sonar time-gain controls High performance automatic gain control (AGC) systems I/Q signal processing High speed, dual ADC drivers

The AD8349 is high performance quadrature modulator design for use as a single stage up-converter within wireless infrastructure equipment.The AD8349 provides a high output power and very low noise floor supporting a significant improvement in the output signal range. Additionally the excellent phase and amplitude balance accuracy support a higher sideband suppression specification enabling higher order / capacity QAM modulated radios.The AD8349 has been tested for use over the common Cellular bands (900 MHz, 1.9 GHz, 2.1 GHz) meeting the needs as specified by the CDMA/GSM Edge/W-CDMA standards.The AD8349 is supplied in 16-lead Thin Shrunk Small Outline (TSSOP) package, and fully specified over -40?C to 85?C temperature range.APPLICATIONS Cellular/PCS communication systems infrastructure WCDMA/CDMA2000/PCS/GSM/EDGE Wireless LAN/wireless local loop LMDS/broadband wireless access systemsAVAILABILITYSamples (part number AD8349ARE) and an evaluation board (part number AD8349-EVAL) are available. Other Modulator / Demodulator ProductsAD8345 - 250 - 1000 MHz RF / IF Quadrature ModulatorAD8346 - 2.5 GHz Direct Conversion Quadrature ModulatorAD8347 - 800 MHz to 2.7 GHz RF / IF Quadrature DemodulatorAD8348 - 50 - 1000 MHz RF / IF Quadrature Demodulator

The AD8370 is a high performance, digitally controlled variable gain amplifier, designed to be used at IF frequencies within communication infrastructure equipment.The part provides two gain control ranges that are controlled through a three wire digital interface, and allow the user to attain fine gain control for maximum receiver sensitivity.The AD8370 has been fully specified for operation at common wireless IF frequencies 70 / 140 / 190 / 240 / 380MHz. The high output compression and fine gain control adjustability makes the AD8370 an ideal choice for to be used within digital receiver AGC circuits for GSM / CDMA2000 / W-CDMA cellular base stations.The AD8370 is fabricated on an advanced silicon bipolar process, operating on a single 3 or 5 volt supply, packaged in space saving 16-lead thin shrunk small outline (TSSOP) package and fully specified over the ?40 to +85 C temperature range. AvailabilitySamples AD8370ARU and an evaluation boards AD8370-EVAL are available.Other Wireless VGA products:AD8367 - 45dB, 500MHz Single Ended, Analog Controlled VGAAD8369 ? 45dB, 600MHz Differential, 3dB Step Digitally Controlled VGA

The AD8375 is a digitally controlled, variable gain, wide bandwidth amplifier that provides precise gain control, high IP3, and low noise figure. The excellent distortion performance and high signal bandwidth make the AD8375 an excellent gain control device for a variety of receiver applications.Using an advanced high speed SiGe process and incorporating proprietary distortion cancellation techniques, the AD8375 achieves 50 dBm output IP3 at 200 MHz.The AD8375 provides a broad 24 dB gain range with 1 dB resolution. The gain is adjusted through a 5-pin control interface and can be driven using standard TTL levels. The open-collector outputs provide a flexible interface, allowing the overall signal gain to be set by the loading impedance. Thus, the signal voltage gain is directly proportional to the load.The AD8375 is powered on by applying the appropriate logic level to the PWUP pin. The quiescent current of the AD8375 is typically 130 mA. When powered down, the AD8375 consumes less than 5 mA and offers excellent input-to-output isolation.Fabricated on an Analog Devices, Inc., high speed SiGe process, the AD8375 is supplied in a compact, thermally enhanced, 4 mm ? 4 mm, 24-lead LFCSP package and operates over the temperature range of ?40?C to +85?C.Applications ? Differential ADC drivers ? High IF sampling receivers ? Wideband multichannel receivers ? Instrumentation

The AD8432 is a dual-channel, low power, ultralow noiseamplifier with selectable gain and active impedance matching.Each channel has a single-ended input, differential output, andintegrated input clamps. By pin strapping the gain setting pins, four accurate gains of G = 12.04 dB, 18.06 dB, 21.58 dB, and 24.08 dB (?4, ?8, ?12, and ?16, respectively) are possible. A bandwidth of200 MHz at G = 12.04 dB makes this amplifier well suited for many high speed applications.The exceptional noise performance of the AD8432 is madepossible by the active impedance matching. Using a feedback network, the input impedance of the amplifiers can be adjusted to match the signal source impedance without compromising the noise performance. Impedance matching and low noise in the AD8432 allow designers to create wider dynamic rangesystems that are able to detect even very low level signals. The AD8432 achieves 0.85 nV/?Hz input-referred voltage noise fora gain of 12.04 dB. The AD8432?s ultralow noise, low distortion, gain accuracy, and channel-to-channel matching are ideal for high performance ultrasound systems and for processing I/Qdemodulator signals.The AD8432 operates on a single supply of 5 V at 24 mA. It isavailable in a 4 mm ? 4 mm, 24-lead LFSCP. The LFCSP featuresan exposed paddle that provides a low thermal resistance path to the PCB, which enables more efficient heat transfer and increasesreliability. The operating temperature range is ?40?C to +85?C.Applications CW Doppler ultrasound front ends? Low noise preamplification? Predriver for I/Q demodulators and phase shifters? Wideband analog-to-digital drivers

The AD8476 is a very low power, fully differential precision amplifier with integrated gain resistors for unity gain. It is an ideal choice for driving low power, high performance ADCs as a single-ended-to-differential or differential-to-differential amplifier. It provides a precision gain of 1, common-mode level shifting, low temperature drift, and rail-to-rail outputs for maximum dynamic range.The AD8476 also provides overvoltage protection from large industrial input voltages up to ?23 V while operating on a dual 5 V supply. Power dissipation on a single 5 V supply is only 1.5 mW.The AD8476 works well with SAR, ?-?, and pipeline converters. The high current output stage of the part allows it to drive the switched capacitor front-end circuits of many ADCs with minimal error.Unlike many differential drivers on the market, the AD8476 is a high precision amplifier. With 200 ?V maximum output offset, 39 nV/?Hz noise, and ?102 dB THD + N at 10 kHz, the AD8476 pairs well with low power, high accuracy converters.Considering its low power consumption and high precision, the slew-enhanced AD8476 has excellent speed, settling to 16-bit precision for 250 kSPS acquisition times.The AD8476 is available in a space-saving 8-lead MSOP package. It is fully specified over the ?40?C to +125?C temperature range. Applications ADC driver Differential instrumentation amplifier building block Single-ended-to-differential converter Battery powered instruments

The AD9083 is a 16-channel, 125 MHz bandwidth, continuous time ?-? (CTSD) ADC. The device features an on-chip, programmable, single-pole antialiasing filter and termination resistor that is designed for low power, small size, and ease of use. The 16 ADC cores features a first-order, CTSD modulator architecture with integrated, background nonlinearity correction logic and self cancelling dither. Each ADC features wide bandwidth inputs supporting a variety of user-selectable input ranges. An integrated voltage reference eases design considerations. The analog input and clock signals are differential inputs. Each ADC has a signal processing tile to filter out of band shaped noise from the ?-? ADC and reduce the sample rate. Each tile contains a cascaded integrator comb (CIC) filter, a quadrature digital downconverter (DDC) with multiple finite input response (FIR) decimation filters (decimate by J block), or up to three quadrature DDC channels with averaging decimation filters for data gating applications. Users can configure the Subclass 1 JESD204B based, high speed serialized output in a variety of lane configurations (up to four), depending on the DDC configuration and the acceptable lane rate of the receiving logic device. Multiple device synchronization is supported through the SYSREF?, TRIG?, and SYNCINB? input pins. The AD9083 has flexible power-down options that allow significant power savings when desired. All of these features can be programmed using a 1.8 V capable 3-wire serial port interface (SPI). The AD9083 is available in a Pb-free, 100-ball CSP_BGA and is specified over the ?40?C to +85?C industrial temperature range.This product is protected by a US patent.APPLICATIONS Millimeter wave imaging Electronic beam forming and phased arrays Multichannel wideband receivers Electronic support measuresPRODUCT HIGHLIGHTS Continuous time, ?-? analog-to-digital converters (ADCs) support signal bandwidths of up to 125 MHz with low power and minimal filtering. Integrated digital processing blocks reduce data payload and lower overall system cost. Configurable JESD204B interface reduces printed circuit board (PCB) complexity. Flexible power-down options. SPI interface controls various product features and functions to meet specific system requirements. Small, 9 mm ? 9 mm, 100-ball CSP_BGA package, simple interface, and integrated digital processing save PCB space.

The AD9114/AD9115/AD9116/AD9117 are pin-compatible dual, 8-/10-/12-/14-bit, low power digital-to-analog converters (DACs) that provide a sample rate of 125 MSPS. These TxDAC? converters are optimized for the transmit signal path of communication systems. All the devices share the same interface, package, and pinout, providing an upward or downward component selection path based on performance, resolution, and cost.The AD9114/AD9115/AD9116/AD9117 offer exceptional ac and dc performance and support update rates up to 125 MSPS.The flexible power supply operating range of 1.8 V to 3.3 V and low power dissipation of the AD9114/AD9115/AD9116/AD9117 make them well suited for portable and low power applications.PRODUCT HIGHLIGHTS Low Power. DACs operate on a single 1.8 V to 3.3 V supply; total power consumption reduces to 225 mW at 100 MSPS. Sleep and power-down modes are provided for low power idle periods. CMOS Clock Input. High speed, single-ended CMOS clock input supports a 125 MSPS conversion rate. Easy Interfacing to Other Components. Adjustable output common mode from 0 V to 1.2 V allows for easy interfacing to other components that accept common-mode levels greater than 0 V.?APPLICATIONS Wireless infrastructures Picocell, femtocell base stations Medical instrumentation Ultrasound transducer excitation Portable instrumentation Signal generators, arbitrary waveform generators

The AD9125 is a dual, 16-bit, high dynamic range TxDAC+? digital-to-analog converter (DAC) that provides a sample rate of 1000 MSPS, permitting a multicarrier generation up to the Nyquist frequency. It includes features optimized for direct conversion transmit applications, including complex digital modulation, and gain and offset compensation. The DAC outputs are optimized to interface seamlessly with analog quadrature modulators, such as the ADL537x F-MOD series from Analog Devices, Inc. A 4-wire serial port interface allows programming/readback of many internal parameters. Full-scale output current can be programmed over a range of 8.7 mA to 31.7 mA. The AD9125 comes in a 72-lead LFCSP.PRODUCT HIGHLIGHTS Ultralow noise and intermodulation distortion (IMD) enable high quality synthesis of wideband signals from baseband to high intermediate frequencies. A proprietary DAC output switching technique enhances dynamic performance. The current outputs are easily configured for various single-ended or differential circuit topologies. Flexible CMOS digital interface allows the standard 32-wire bus to be reduced to a 16-wire bus.APPLICATIONS Wireless infrastructure W-CDMA, CDMA2000, TD-SCDMA, WiMAX, GSM, LTE Digital high or low IF synthesis Transmit diversity Wideband communications: LMDS/MMDS, point-to-point Cable modem termination systems