Low distortion

Analog Devices has developed the AD8007 high-speed current-feedback amplifier that features low distortion (-80 dB at 20 MHz) and low noise, all while drawing 9 mA.

The trend towards higher performance systems – most notably in the wired and wireless communications, ultrasound, and instrumentation markets – is driving the need for higher performance and higher speed amplifiers.

To meet those demands, Analog Devices has developed the AD8007 high-speed current-feedback amplifier that features low distortion (-80 dB at 20 MHz) and low noise, all while drawing 9 mA.

The low power of the AD8007 allows designers to minimise supply voltage circuitry or battery requirements and reduce cooling requirements, which, in turn, will save cost and/or allow higher density boards.

This new high-speed amplifier has 600 MHz of bandwidth (G = +1) and a slew rate of 1000 volts per microsecond. The AD8007 features a second harmonic distortion of -88 dB at 5 MHz and -80 dB at 20 MHz, while the third harmonic distortion is -101 dB at 5 MHz and -84 dB at 20 MHz. Noise specs are at 2.7 nV/rt Hz and 22.5 pA/rt Hz.

With a supply-voltage range of 5 V to 12 V and its wide bandwidth, the AD8007 is suitable for use in IF and baseband amplifiers, filters, ADC drivers and DAC buffers.

The AD8007 is available in a SC70 package as well as an 8-lead SOIC. The AD8007 is rated to work over the industrial temperature range, -40 degrees C to +85 degrees C.

Samples and production volumes are available now from stock. The AD8007 costs $1.19 per unit in 1,000 piece quantities. The AD8008, a dual version of the AD8007, will be available for sampling shortly.

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