Other Parts Discussed in Thread: OPA350, REF5040, REF3140
What refenrece chip would you reccomend to add as external ref value to ADS1252.
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Figure 2 in the ADS2152 datasheet shows an example REF3140 and OPA350 reference circuit. However, I would actually recommend using a REF5040 or REF6x40. These references were released after the ADS1252 and are well-suited for high-resolution ADCs. They also have buffered outputs, so you wouldn't need the OPA350 that is shown in figure 2.