Hello
I have a question if ADS1192 can configure to use External Voltage Reference using Internal Reference Buffer?
The idea is to connect External VREF like REF5025 (better performance than the internal one) to VCAP1 and enable Internal Reference Buffer (Set CONFIG2 Bit 5 ON and Bit 4 is OFF).
I found that block diagram of the internal reference, Figure 26 on page 22 in the datasheet. The block has R1 after internal Bandgap (100kohm) and if 2.5V voltage is applied to VCAP1, internal buffer operate the 2.5V to VREFP without disturbing and be disturbed by the bandgap.
I would like to save external reference buffer amp.
Best regards,
Masa
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