AD8027 Datasheet
Low Distortion, High Speed Rail-to-Rail Input/Output Amplifier
Low Distortion, High Speed Rail-to-Rail Input/Output Amplifier
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The AD8027 are high speed amplifiers with rail-to-rail input and output that operate on low supply voltages and are optimized for high performance and a wide dynamic signal range. The AD8027 have low noise (4.3 nV/√Hz, 1.6 pA/√Hz) and low distortion (120 dBc at 1 MHz). In applications that use a fraction of or use the entire input dynamic range and require low distortion, the AD8027 are ideal choices.
Many rail-to-rail input amplifiers have an input stage that switches from one differential pair to another as the input signal crosses a threshold voltage, which causes distortion. The AD8027 have a unique feature that allows the user to select the input crossover threshold voltage through the DISABLE/SELECT pin (DISABLE/SELECT x in the 10-lead MSOP, hereafter referred to as DISABLE/SELECT throughout this data sheet). This feature controls the voltage at which the complementary transistor input pairs switch. The AD8027 also have intrinsically low crossover distortion.
With their wide supply voltage range (2.7 V to 12 V) and wide bandwidth (190 MHz), the AD8027 amplifiers are designed to work in a variety of applications where speed and performance are needed on low supply voltages. The high performance of the AD8027 is achieved with a quiescent current of only 6.5 mA (typical) per amplifier. The AD8027 have a shutdown mode that is controlled via the DISABLE/SELECT pin.
The AD8027 are available in 8-lead SOIC, 6-lead SOT-23, and 10-lead MSOP packages. See the Automotive Products section for more details. The AD8027 family is designed to work over the extended temperature range of −40°C to +125°C.