ISD91200 Series Technical Reference Manual
Release Date: Sep 16, 2019
- 397 -
Revision 2.4
[22]
CHOPPDIS
BS Instrumentation Amplifer chopper positive disable
When OFFSETTRIM bit is high
1 = disable chopper in positive input opamp
0 = Enable chopper in positive input opamp
[21]
CHOPNDIS
BS Instrumentation Amplifer chopper negative disable
When OFFSETTRIM bit is high
1 = disable chopper in negative input opamp
0 = Enable chopper in negative input opamp
[20]
OFFSETTRIM
BS Instrumentation Amplifer offset trim mode
1= enable offset trim mode
0= disable offset trim mode
[19]
SYSCHOPEN
BS Instrumentation Amplifer system chopper enable
1= enable system chopper
0= disable system chopper
[18]
CHOPEN
BS Instrumentation Amplifer chopper enable
1= enable choppers in the three opamps
0= disable choppers in the three opamps
[17:12]
OFFSETP
BS Instrumentation Amplifer offset positive input opamp
bit[17]=sign
bit[16:12]=magnitude
[11]
OFFSETPEN
BS Instrumentation Amplifer offset positive input opamp enable
1= use value of bits [17:12] to change offset of positive input opamp
0= don’t use bits [17:12]
[10]
OFFSETNEN
BS Instrumentation Amplifer offset negetvie input opamp enable
1= use value of bits [9:4] to change offset of positive input opamp
0= don’t use bits [9:4]
[9:4]
OFFSETN
BS Instrumentation Amplifer offset negetive input opamp
bit[9]=sign
bit[8:4]=magnitude
[3:1]
GAIN
BS Instrumentation Amplifer GAIN
000 = 1
001 = 2
010 = 4
011 = 8
100 = 16
101 = 32
110 = 64
111 = 128
[0]
EN
BS Instrumentation Amplifer enable
1 = Enable
0 = Disable