Digitally Programmable Amplifier
December 2007
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The AD8253 instrumentation amplifier features fast settling time, dc precision, and a small 10-lead MSOP package. Designed for data acquisition systems, automatic test equipment, and biomedical instruments requiring fast, accurate measurement with robust signal conditioning over large voltage ranges, the digitally programmable instrumentation amplifier is able to reach gains of 1000 while offering dc precision and ac bandwidth unmatched by other in-amps or discrete solutions on the market. A large gain setting allows small signals, such as those from sensors, to be amplified to drive an ADC. The unit is digitally programmable with gain settings of 1, 10, 100, and 1000, letting users adjust gain even after the devices are designed into the system. Operating from ±5 to ±15 V, it achieves 10 MHz bandwidth and 0.5-microsecond settling time to 0.01%.


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