零偏移放大器：AD8230概览

零偏移放大器：AD8230概览
Zero-Drift Amplifiers: A Look at the AD8230
Some applications require extreme precision over temperature and
AD8230 OUTPUT VOLTAGE vs. MAXIMUM COMMON-MODE VOLTAGE
time. In many instances, an instrument can only be calibrated dur-
ing manufacture; designers must ensure that the system does not 6


drift out of specification afterwards. Such applications call for “zero-
drift” instrumentation amplifiers such as the AD8230. It uses an 4



offset correction scheme, referred to as auto-zeroing, to reduce its