有关HI7190 / HI7191负全面误差对转换频率 HI7190/HI7191 Negative Full Scale Error vs Conversion Frequency Technical Brief February 1998 TB348.1 Introduction This technical brief highlights a recently discovered perfor- TABLE 1. FREQUENCY RANGES WHICH EXHIBITED MID mance anomaly with the HI7190/1. The problem occurs SCALE ERRORS when the digital code for the notch lter is programmed (Avoid these control register frequencies) within certain frequencies listed in Table 1(assuming a 10MHz clock). We believe the error is caused by the calibra- CONVERSION FREQUENCY ……