Datasheet

Data Sheet AD7292
Rev. 0 | Page 9 of 40
Pin No. Mnemonic Description
26 GPIO1/ALERT1 General-Purpose Input/Output Pin (GPIO1).
Alert Pin 1 (ALERT1). When configured as an alert, this pin acts as an out-of-range indicator and becomes
active when the conversion result violates the high or low limit stored in the alert limits register bank. The
polarity of the alert signal is controlled using the general subregister within the configuration register bank.
27 GPIO0/ALERT0 General-Purpose Input/Output Pin (GPIO0).
Alert Pin 0 (ALERT0). When configured as an alert, this pin acts as an out-of-range indicator and becomes
active when the conversion result violates the high or low limit stored in the alert limits register bank. The
polarity of the alert signal is controlled using the general subregister within the configuration register bank.
28 to 35 VIN0 to VIN7 Analog Inputs. The eight single-ended analog inputs of the AD7292 are multiplexed into the on-chip
track-and-hold amplifier. Each input channel can accept analog inputs from 0 V to 5 V. Any unused input
channels should be connected to A
GND
to avoid noise pickup.
36 REF
IN
Voltage Reference Input. An external reference for the AD7292 can be applied to this pin. If this pin is
unused, connect it to A
GND
.
EPAD EPAD The exposed pad is internally connected to A
GND
and can be soldered to the ground plane of the system.