ADR5040
Production
Designed for space-critical applications, the ADR5040 / ADR5041 / ADR5043 / ADR5044 / ADR5045 are high precision
shunt voltage references, housed in ultrasmall...
Datasheet
ADR5040 on Analog.com
Dear Sir,
Since PCN 20_0295, ADR5040 Pin 3 recommended connect to V+, But customer's sch is keep floating as old version. Could you please help us to check is any risk when Pin 3 keep floating on new version ADR5040? Thanks.

stephenv - Moved from Other Products (EN) to Voltage References. Post date updated from Monday, December 14, 2020 6:42 AM UTC to Tuesday, February 3, 2026 9:06 PM UTC to reflect the move.
stephenv - Moved from Other Products (EN) to Voltage References. Post date updated from Tuesday, February 3, 2026 9:06 PM UTC to Tuesday, February 3, 2026 9:06 PM UTC to reflect the move.
stephenv - Moved from Voltage References to Other Products (EN). Post date updated from Monday, December 14, 2020 6:42 AM UTC to Tuesday, February 3, 2026 9:06 PM UTC to reflect the move.
Hi Yen,
There's no changes in the actual product unit itself.
The customer can continue using the current setup so long as they are not really experiencing any issue.
Regards,
Mon