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The AD8555 is a zero-drift, sensor signal amplifier with digital-ly programmable gain and output offset. Designed to easily and accurately convert variable pressure sensor and strain bridge outputs to a well-defined output voltage range, the AD8555 also accurately amplifies many other differenTIal or single-ended sensor outputs. The AD8555 uses the ADI patented low noise auto-zero and DigiTrim® technologies to create an incredibly accurate and flexible signal processing soluTIon in a very com-pact footprint.
Gain is digitally programmable in a wide range from 70 to 1,280 through a serial data interface. Gain adjustment can be fully simulated in-circuit and then permanently programmed with proven and reliable poly-fuse technology. Output offset voltage is also digitally programmable and is raTIometric to the supply voltage.
