PGA970: 4 Wire operation

We appreciate your interest in this device, however at this time we are unable to offer additional support. Please use our extensive resources – including datasheets, user’s guides, application notes, FAQs, and existing E2E posts – to guide your design and help troubleshoot any issues. We apologize for any inconvenience this may cause.

e2e.ti.com/.../faq-pga900-answers-to-common-questions-for-ti-s-pga900-and-pga30x-devices