Analog Devices

The ADL5507 is a complete, low-power, wide-band logarithmic RF power detector for the measurement of RF signals in the 10 MHz to 12 GHz frequency range. The device is optimized for accurate RF signal level measurements over a 55 dB dynamic range, from −56 dBm to −1 dBm at 3.6 GHz, when terminated with 50 Ω. It provides a wider dynamic range and better accuracy than is possible using discrete diode detectors. Its high sensitivity allows measurement of low power levels, thus reducing the amount of power that needs to be coupled to the detector.For convenience, the signal input is internally AC-coupled, using a series 25 pF capacitor. Therefore, the source can be DC grounded. A broadband 50 Ω match is obtained with an external 51 Ω shunt resistor. This high-pass coupling, with a corner at approximately 4 MHz, determines the lowest operating frequency.The DC voltage at the ADL5507 output interface responds linearin- dB to the RF signal level applied at its input. It is accurately temperature compensated to provide typically better than ±1 dB measurement accuracy over the full case operating temperature range from −40°C to +105°C. The output interface has sufficient capability to drive a wide range of analog‐to‐digital converters (ADCs) and other circuitry.The CFLT interface enables additional ripple and noise filtering of the output signal, without reducing the drive capability of the VLOG interface. This is achieved by connecting a capacitor between the CFLT and VLOG interfaces.The tri-state ENBL interface switches the device between active positive output slope mode, active negative output slope mode, and a low-power shutdown mode. In positive output slope mode, the ADL5507 output increases approximately from 0.1 V to 1.2 V as the input signal level increases from 0.35 mV rms (−56 dBm) to 200 mV rms (−1 dBm). In negative output slope mode, the output decreases approximately from 1 V to 0 V as the input signal level decreases from 200 mV rms (−1 dBm) to 0.35 mV rms (−56 dBm). The output interface becomes high impedance in shutdown to avoid discharge of external filter capacitors.The ADL5507 is available in a 6-ball WLCSP package and consumes 12.5 mA from a 3.3 V supply. In shutdown mode, the typical disable supply current is <100 μA.APPLICATIONSRSSI and TSSI for wired and wireless terminal devicesRF transmitter or receiver power measurementWide-band Automatic Gain Control

The ADL5511 is an RF envelope and TruPwr™rms detector. The envelope output voltage is presented as a voltage that is proportional to the envelope of the input signal. The rms output voltage is independent of the peak-to-average ratio of the input signal.The rms output is a linear-in-V/V voltage with a conversion gain of 1.9 V/V rms at 900 MHz. The envelope output has a conversion gain of 1.46 V/V at 900 MHz and is referenced to an internal 1.1 V reference voltage, which is available on the EREF pin.The ADL5511 can operate from dc to 6 GHz on signals with envelope bandwidths up to 130 MHz.The extracted envelope can be used for RF power amplifier (PA) linearization and efficiency enhancements and the rms output can be used for rms power measurement. The high rms accuracy and fast envelope response are particularly useful for envelope detection and power measurement of broadband, high peak-to-average signals that are used in CDMA2000, W-CDMA, and LTE systems.The ADL5511 operates from −40°C to +85°C and is available in a 16-lead, 3 mm × 3 mm LFCSP package.APPLICATIONSRMS power and envelope detection of W-CDMA, CDMA2000, LTE, and other complex waveformsDrain modulation based power amplifier linearizationPower amplifier linearization employing envelope-tracking methods

The ADL5531 is a broadband, fixed-gain, linear amplifier that operates at frequencies up to 500 MHz. The device can be used in a wide variety of equipment, including cellular, satellite, broadband, and instrumentation equipment.The ADL5531 provides a gain of 20 dB, which is stable over frequency, temperature, power supply, and from device to device. This amplifier is single-ended and internally matched to 50 Ω. Only input/output ac coupling capacitors, power supply decoupling capacitors, and external inductors are required for operation.The ADL5531 is fabricated on a GaAs HBT process and has an ESD rating of ±2 kV (Class 2). The device is packaged in an 8-lead 3 mm × 3 mm LFCSP that uses an exposed paddle for excellent thermal impedance.The ADL5531 consumes 100 mA on a single 5 V supply and is fully specified for operation from −40°C to +85°C.The dual-channel 20 dB gain version,ADL5534, is also available.

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 Ω 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 gainADL5536. Fully populated evaluation boards are available for each amplifier.

The ADL5541 is a broadband 15 dB linear amplifier that operates at frequencies up to 6 GHz. The device can be used in a wide variety of CATV, cellular, and instrumentation equipment.The ADL5541 provides a gain of 15 dB, which is stable over frequency, temperature, power supply, and from device to device. The device is internally matched to 50 Ω with an input return loss of 10 dB or better up to 6 GHz. Only input/output ac coupling capacitors, power supply decoupling capacitors, and an external inductor are required for operation.The ADL5541 is fabricated on an InGaP HBT process and has an ESD rating of 1 kV (Class 1C). The device is packaged in a 3 mm × 3 mm LFCSP that uses an exposed paddle for excellent thermal impedance.The ADL5541 consumes 90 mA on a single 5 V supply and is fully specified for operation from −40°C to +85°C.A fully populated RoHS-compliant evaluation board is available.The ADL5542 is a companion part that offers a gain of 20 dB in a pin-compatible package.

The ADL5542 is a broadband 20 dB linear amplifier that operates at frequencies up to 6 GHz. The device can be used in a wide variety of CATV, cellular, and instrumentation equipment.The ADL5542 provides a gain of 20 dB that is stable over frequency, temperature, power supply, and from device to device. The device is internally matched to 50 Ω with an input return loss of 10 dB or better, up to 6 GHz. Only input/output ac coupling capacitors, power supply decoupling capacitors, and an external inductor are required for operation.The ADL5542 is fabricated on an InGaP HBT process and has an ESD rating of 1 kV (Class 1C). The device is packaged in a 3 mm × 3 mm LFCSP that uses an exposed paddle for excellent thermal impedance.The ADL5542 consumes 93 mA on a single 5 V supply and is fully specified for operation from −40°C to +85°C.A fully populated RoHS-compliant evaluation board is available.The ADL5541 is a companion part that offers a gain of 15 dB in a pin-compatible package.

The ADL5544 is a single-ended RF/IF gain block amplifier that provides broadband operation from 30 MHz to 6 GHz. The ADL5544 provides over 34 dBm of OIP3 using only 55 mA from a 5 V supply.The ADL5544 provides a gain of 17 dB, which is stable over frequency, temperature, power supply, and from device to device. The amplifier is offered in the industry-standard SOT-89 package and is internally matched to 50 Ω at the input and output, making the ADL5544 very easy to implement in a wide variety of applications. The only external components required are the input/output ac coupling capacitors, power supply decoupling capacitors, and dc bias inductor.The ADL5544 is fabricated on an InGaP HBT process and has a high ESD rating of ±1.5 kV (Class 1C). The ADL5544 is also fully specified for operation across the wide temperature range of −40°C to +105°C. A fully populated RoHS-compliant evaluation board is available.