AD7324

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Table 11. Power Mode Selection

PM1

PM0

Description

1

1

Full Shutdown Mode. In this mode, all internal circuitry on the AD7324 is powered down. Information in the control register

is retained when the AD7324 is in full shutdown mode.

1

0

All internal circuitry is powered down in autoshutdown.

0

1

Autostandby Mode. In this mode, all internal circuitry is powered down excluding the internal reference. The AD7324 enters

0

0

Normal Mode. All internal circuitry is powered up at all times.

Table 12. Sequencer Selection

Seq1

Seq2

Sequence Type

0

0

The channel sequencer is not used. The analog channel, selected by programming the ADD1 bit and ADD0 bit in the

control register, selects the next channel for conversion.

0

1

Uses sequence of channels that were previously programmed in the sequence register for conversion. The AD7324 starts

converting on the lowest channel in the sequence. The channels are converted in ascending order. If uninterrupted, the

AD7324 keeps converting the sequence. The range for each channel defaults to the range previously written into the

range register.

1

0

Used in conjunction with the channel address bits in the control register. This allows continuous conversions on a

consecutive sequence of channels, from Channel 0 up to and including a final channel selected by the channel address bits

in the control register. The range for each channel defaults to the range previously written into the range register.

1

1

The channel sequencer is not used. The analog channel, selected by programming the ADD1 bit and ADD0 bit in the

control register, selects the next channel for conversion.