MAXQ3181-RAN+ datasheet(68/84 Pages) MAXIM

68 / 84 page

Low-Power, Active Energy, Polyphase AFE

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Time Slot Assignment—Temperature Channel (SCAN_TE) (0x00F)

This register configures the time slot normally assigned to the temperature measurement device. This register is

managed by the firmware and should not be modified by the host. Changing this register can result in unpredictable

results.

BIT

NAME

FUNCTION

7:4

ADCMX

Analog Input Select. This four-bit field determines which of the following analog inputs are sampled during

this time slot.

0000 = V0P - VN

0001 = V1P - VN

0010 = V2P - VN

0011 = I0P - I0N

0100 = I1P - I1N

0101 = I2P - I2N

0110 = INP - VN

0111 = Auto-zero ADC

1xxx = Temperature

By default, this register is set to 1000.

DADCNV

ADC Disable. When set, disables the ADC for this time slot.

2:0

PGG

Programmable Gain Amplifier Select. This three-bit field configures the programmable-gain amplifier at

the front end of the analog input. The field has the following values:

000 = Gain of 1

001 = Gain of 2

010 = Gain of 4

011 = Gain of 8

100 = Gain of 16

101 = Gain of 32

All other values are reserved and can cause unpredictable behavior if selected. This register is managed

by the firmware and should not be modified by the host.

Bit:

Name:

ADCMX

DADCNV

PGG

Reset:

0x8

0x2

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