请各位大侠推荐一款 基准源～
系统中打算用一个基准源，给ADC做基准的，需要保证误差在1uv以下，那家的比较好呀？ 你要几V的呢，给多少位AD做基准呢？？误差1uV指的是ADC采样精度1uV吗？？？？ 个人愚见：ADI或者Linear吧？ 恒佳兴（深圳）SOT-232.4883 2.5 0.0117 0.4680%
2.4892 2.5 0.0108 0.4320%
2.4836 2.5 0.0164 0.6560%
2.494 2.5 0.006 0.2400%
2.4857 2.5 0.0143 0.5720%
昌盛达（香港）SOT-23
2.4951 2.5 0.0049 0.1960%
2.4856 2.5 0.0144 0.5760%
2.4903 2.5 0.0097 0.3880%
2.4893 2.5 0.0107 0.4280%
2.4917 2.5 0.0083 0.3320%
2.4848 2.5 0.0152 0.6080%
2.4954 2.5 0.0046 0.1840%
2.4935 2.5 0.0065 0.2600%
2.4954 2.5 0.0046 0.1840%
2.4912 2.5 0.0088 0.3520%
2.4906 2.5 0.0094 0.3760%
（TI）LM4040D41I 基准 误 差 误差率
4.093 4.096 0.003 0.0732%
4.085 4.096 0.011 0.2686%
4.096 4.096 0 0.0000%
4.088 4.096 0.008 0.1953%
4.082 4.096 0.014 0.3418%
（TI）LM4040D20I
2.0468 2.048 0.0012 0.0586%
2.0482 2.048 -0.0002 -0.0098%
2.046 2.048 0.002 0.0977%
2.0515 2.048 -0.0035 -0.1709%
2.0558 2.048 -0.0078 -0.3809%
2.0497 2.048 -0.0017 -0.0830%
2.053 2.048 -0.005 -0.2441%
2.0513 2.048 -0.0033 -0.1611%
2.0557 2.048 -0.0077 -0.3760%
2.0467 2.048 0.0013 0.0635%
NS：LM4040AIM3-2.5
2.5002 2.5 -0.0002 -0.0080%
2.4999 2.5 0.0001 0.0040%
2.4997 2.5 0.0003 0.0120%
2.4996 2.5 0.0004 0.0160%
2.4998 2.5 0.0002 0.0080%
ACTL431 TO92
2.4938 2.5 0.0062 0.2480%
2.4989 2.5 0.0011 0.0440%
2.4995 2.5 0.0005 0.0200%
2.4993 2.5 0.0007 0.0280%
2.4892 2.5 0.0108 0.4320%
2.4957 2.5 0.0043 0.1720%
2.5021 2.5 -0.0021 -0.0840%
2.4882 2.5 0.0118 0.4720%
2.5056 2.5 -0.0056 -0.2240%
2.4937 2.5 0.0063 0.2520%
2.4905 2.5 0.0095 0.3800%
2.4937 2.5 0.0063 0.2520%
你看看行不
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