AD7329

Rev. 0 | Page 10 of 40

Pin No.

Mnemonic

Descriptions

17

Negative Multiplexer Output. This pin allows access to the on-chip track-and-hold. The voltage applied to this

pin is still a high voltage signal when the AD7329 is in differential mode. When the AD7329 is in single-ended

18

Negative ADC Input. This pin allows access to the track-and-hold. When the AD7329 is in single-ended mode,

applied to this pin is a high voltage signal (±10 V, ±5 V, ±2.5 V, or 0 V to +10 V).

9 to 16

Analog Input 0 Through Analog Input 7. The analog inputs are multiplexed into the on-chip track-and-hold.

The analog input channel for conversion is selected by programming the channel address bits, ADD2

through ADD0, in the control register. The inputs can be configured as eight single-ended inputs, four true

differential input pairs, four pseudo differential inputs, or seven pseudo differential inputs. The configuration

of the analog inputs is selected by programming the mode bits, Mode 1 and Mode 0, in the control register.

The input range on each input channel is controlled by programming the range registers. Input ranges of

±10 V, ±5 V, ±2.5 V, or 0 V to +10 V can be selected on each analog input channel (see the Range Registers