ES51998(60000counts)
DMM Analog front end/Insulation
2.14 Independent OPAMP
ES51998 is built-in an independent OPAMP with 200kHz unity-gain bandwidth 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. 1.7
28
12/01/12