ZHCSR17 january 2023 ADS9218
ADVANCE INFORMATION
The ADS921x has a precision, low-drift voltage reference internal to the device. For best performance, filter the internal reference noise by connecting a 10-µF ceramic bypass capacitor to the REFIO pin. An external reference can also be connected at the REFIO pin with the internal reference voltage disabled by writing to PD_REF field in register address 0xC1.