Industrial

This document describes the features of Analog Devices' AD8331/AD8332/AD8334 series ultralow noise variable gain amplifiers (VGAs) with preamplifier. The features include ultralow noise, wide gain range, low power consumption, and applications such as ultrasound and sonar time-gain controls, high performance automatic gain control systems, and I/Q signal processing.

The ADA4303-2 is a 75 Ω, two-output active splitter for use in applications where a lossless split is required. It features excellent frequency response and low noise characteristics, making it ideal for CATV applications.

The AD8392A is a low power, high output current, quad op amp designed for use as an ADSL/ADSL2+ line driver. It features four current feedback, high current amplifiers, low power operation, multiple power supply modes, high output voltage and current drive, low distortion, and high speed capabilities.

The AD8336 is a low noise, wide bandwidth, DC-coupled VGA amplifier with ±3V to ±12V supply voltage and -55°C to +125°C temperature range. The device features 3nV/√Hz low voltage noise and 3pA/√Hz low current noise.

This document is a detailed introduction of ADL5570 WiMAX power amplifier, including its features, applications and application guides.

The AD8398 is a VDSL dual line driver with shutdown. It features wide output swing, high output current, low distortion and high speed. AD8398 can be used for VDSL line drivers, consumer xDSL modems and twisted pair line drivers etc.

The ADA4937-x is a low noise, ultralow distortion, high speed differential amplifier. It is an ideal ADC driver and can be used in applications such as single-ended-to-differential converters, IF and baseband gain blocks, differential buffers, and line drivers.

The ADA4304-3/ADA4304-4 is a 1:3 and 1:4 single-ended, low cost, active RF splitter.

AD8394 is a low power, high output current, quad op amp, ideal for use as ADSL/ADSL2+ dual-channel, central office (CO) line drivers. It supports dual-supply operation from ±6 V to ±12 V, single-supply operation from 12 V to 24 V, and has an internal power dissipation of 700 mW while driving a 20.4 dBm ADSL2+ signal (CF = 5.5). It also features a low output impedance, high output voltage and current drive, and low distortion MTPR down to −70 dBc. The AD8394 is ideal for applications such as ADSL/ADSL2+ CO line drivers, xDSL line drivers, high output current, low distortion amplifiers, and DAC output buffers.

The ADL5571 is a high linearity 2.5GHz to 2.7GHz power amplifier designed for WiMAX mobile terminals and CPEs using TDD operation at a duty cycle of 50% or lower.

The MAX639/MAX640/MAX653 step-down switching regulators provide high efficiency over a wide range of load currents, delivering up to 225mA.

The AD6630 is a differential, low noise IF gain block with features such as 24dB gain, 4dB noise figure, easy match to SAW filters, and adjustable output limiter.

AD604 Rev. G is a dual-channel ultralow noise variable gain amplifier with extremely low input noise and programmable gain range. It is suitable for applications such as ultrasound and sonar time-gain controls, high-performance AGC systems, and signal measurement.

The MAX6365-MAX6368 supervisory circuits simplify power-supply monitoring, battery-backup control functions, and memory write protection in microprocessor (µP) systems. The circuits significantly improve the size, accuracy, and reliability of modern systems with an ultra- small integrated solution. These devices perform four basic system functions: 1) Provide a µP reset output during VCC supply power- up, power-down, and brownout conditions. 2) Internally control VCC to backup-battery switching to maintain data or low-power operation for CMOS RAM, CMOS µPs, real-time clocks, and other digital logic when the main supply fails. 3) Provide memory write protection through internal chip-enable gating during supply or processor faults. 4) Include one of the following options: a manual reset input (MAX6365), a watchdog timer function (MAX6366), a battery-on output (MAX6367), or an auxiliary user-adjustable reset input (MAX6368). The MAX6365-MAX6368 operate from VCC supply volt- ages as low as 1.2V. The factory preset reset threshold voltages range from 2.32V to 4.63V (see Ordering Information). In addition, each part is offered in three reset output versions: push-pull active low, open-drain active low, or open-drain active high (see Selector Guide). The MAX6365-MAX6368 are available in minia- ture 8-pin SOT23 packages.

AD605 Rev. F is a dual, low noise, single-supply variable gain amplifier. It features 2 independent linear-in-dB channels, with input noise at maximum gain of 1.8 nV/√Hz, 2.7 pA/√Hz, and a bandwidth of 40 MHz (-3 dB). It has a programmable absolute gain range, with a gain range of -14 dB to +34 dB (FBK shorted to OUT) or 0 dB to 48 dB (FBK open). It also has variable gain scaling, stable gain with temperature and supply variations, single-ended unipolar gain control, and other features.