Analog Devices has released the first device in a new family of high-performance amplifiers with rail-to-rail inputs and outputs that work on supply voltages down to 2.7 V. The AD8027 features high bandwidth (180 MHz, G = +1), and 100 volts per microsecond slew rate. Low distortion over the entire input range is the most unique feature of the AD8027. While all amplifiers with rail-to-rail inputs have an input stage that switches from one differential pair to another as the input signal crosses the threshold voltage, the AD8027 has a unique "selectable crossover" feature that allows that threshold to be selected--close to either the positive or negative rail--at the designer's discretion, minimizing the effects of crossover distortion. The AD8027 offers the industry's lowest distortion over the entire input range, including the crossover glitch.
With a wide supply voltage range (2.7 V to 12 V), wide bandwidth, low quiescent current (6 mA max), and a power down feature, the AD8027 amplifier is designed to work in a variety of applications where speed, performance and dynamic range are critical, especially those requiring low supply voltages and low power consumption. These applications include, but are not limited to, filtering, A/D converter driving, level shifting, buffering, and battery-powered instrumentation.
Availability and Pricing
The AD8027 amplifier is available now in a SOT-23 and SOIC packages and is rated to work over the industrial temperature range of -40 degrees C to +85 degrees C. The AD8027 is priced at $1.19 per unit in 1,000-piece quantities. A dual version, the AD8028, will be available in March 2003.
