78M6610+LMU Data Sheet
Functional Description and Operation
This section describes the operation and configuration of the 78M6610+LMU. It includes the flow of
measurement data, relevant calculations, alarm monitoring, I/O control, and user configurations.
Measurement Interface
The 78M6610+LMU incorporates a flexible measurement interface for simplified integration into any
single-phase system. This section describes the configuration and signal conditioning of the analog
inputs.
Settings and calibration parameters described in this section can be saved to flash memory and
automatically initialized upon power on or reset.
AFE Input Multiplexer
The 78M6610+LMU samples four (4) external sensors with an effective sample rate of 4Ksps for each
multiplexer slot. Two analog input pins are defined as single ended voltage inputs with the other four
analog input pins defined as a pair of differential current inputs.
Mux Control
Results
ADC
PRECISION
REFERENCE
A0
S0
SINC3
DECIMATOR
S0
S2
S1
A1
S1
S2
S3
P
N
∆Σ
Signal
Processor
A2
A3
MODULATOR
P
N
CROSS-
POINT
A4
A5
S3
F
ADC
Figure 8. AFE Input Multiplexer
Sensor Slot
Analog Input Pins
Input Type
Voltage
Current
S0
S1
S2
S3
A0
A2 (pos) and A3 (neg)
A1
Voltage
Current
A4 (pos) and A5 (neg)
16
Rev 0
MAXIM [ MAXIM INTEGRATED PRODUCTS ]
