Composite instrumentation amplifier challenges single-chip device for bandwidth, offset, and noise

摘要

Although the prevailing number set in electronics is binary, human-machine interaction uses a decimal-number set> For this reason, designs often require the use of amplifiers with gain programmable in steps in the power of 10. Currently, Analog Devices' AD8253 monolithic instrumentation amplifier is digitally programmable with voltage gains of one, 10, 100, and 1000 (Reference 1).