ES51970(6000counts)
DMM Analog front end with Inrush
2.13 Independent OPAMP
ES51970 is built-in an independent OPAMP with low-drift offset using for general purpose.
MPU could control the OP1/OP0 to change the OPAMP configuration:
OP1
OP0
OPAMP configuration
Normal
0
0
1
1
0
1
0
1
OP disable
Unity gain buffer
Zero calibration
Independent OPAMP configuration
Normal operation
OPIN-
OPIN+
OPOUT
-
+
Zero offset calibration
OPOUT
OPIN-
OPIN+
-
+
Unity gain operation
OPOUT
OPIN-
OPIN+
-
+
ver. 2.8
24
12/01/12