VREF
+15V
75kΩ(1)
1
8
INA110
7
11
300Ω
X500
1µF(1)
10
6
9
VOUT
3
2
75kΩ(1)
–15V
FET input allows low-pass filtering with minimal effect on DC accuracy.
NOTE: (1) Larger resistors and a smaller capacitor can be used.
FIGURE 9. Bridge Amplifier with 1Hz Low-Pass Input Filter.
+15V
+15V
1µF
1
1
8
INA110
7
In 1
In 2
1
8
8
INA110
7
12
10
6
10MΩ
X100
13
10
9
X10
VOUT
VOUT
9
3
2
SHC5320
100mVPP
3
2
6
In 15
In 16
1µF
10MΩ
–15V
–15V
FIGURE 10. AC-Coupled Differential Amplifier for
Frequencies Greater Than 0.016Hz.
FIGURE12.Rapid-Scanning-RateDataAcquisitionChannel
with 5µs Settling to 0.01%.
+15V
1
+15V
8
13
1
X10
5.34MΩ(1)
1000pF
10
6
VOUT
13
12
16
11
3
9
8
INA110
X10
3
2
10
6
X100
X200
X500
5.34MΩ(1)
9
VIN
∆VIN
VOUT
7
7
2
–15V
Decoder/
Latch/Driver
2kΩ
2.67MΩ(1)
–15V
A0 A1 A2
500pF
500pF
NOTE: Use manual switch or low resistance relay.
Layout is critical (see section on Dynamic Performance).
NOTE: (1) For 50Hz use 3.16MΩ and 6.37MΩ.
2kΩ potentiometer sets Q.
FIGURE 13. 60Hz Input Notch Filter.
FIGURE 11. Programmable-Gain Instrumentation Amplifier
(PrecisionNoninvertingorInvertingBufferwith
Gain).
INA110
SBOS147A
11
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