MAXQ3180 Maxim, MAXQ3180 Datasheet - Page 74

• Manufacturer Part Number: MAXQ3180
• Description: The MAXQ3180 is a dedicated electricity measurement front-end that collects and calculates polyphase voltage, current, power, energy, and many other metering and power-quality parameters of a polyphase load
• Manufacturer: Maxim

Low-Power, Multifunction, Polyphase AFE
These registers configure the time slot normally assigned to voltage channels A/B/C. The user may wish to change the
PGG settings to match the voltage sensor. However, it is recommended that the user not modify the ADCMX settings.
74
Bit:
Name:
Reset A:
Reset B:
Reset C:
BIT
7:4
2:0
______________________________________________________________________________________
3
DADCNV ADC Disable. When set, disables the ADC for this time slot.
ADCMX
NAME
PGG
7
Analog Conversion Select. This four-bit field determines which of the following analog inputs are sampled
during this time slot.
0000 = V0P - VN (Phase A Voltage: 0000)
0001 = V1P - VN (Phase B Voltage: 0001)
0010 = V2P - VN (Phase C Voltage: 0010)
0011 = I0P - I0N
0100 = I1P - I1N
0101 = I2P - I2N
0110 = INP - VN
1xxx = Temperature
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.
6
ADCMX
Time Slot Assignment—Voltage Channel X = A/B/C (SCAN_VX)
0x0
0x1
0x2
5
4
FUNCTION
DADCNV
3
0
0
0
(A: 0x009, B: 0x00D, C: 0x00B)
2
PGG
0x0
0x0
0x0
1
0