INA152 Datasheet, PDF (13/18 Pages) Burr-Brown (TI) – Single-Supply DIFFERENCE AMPLIFIER

V_S
Transducer
or
Analog
Signal
7
INA152
2
3
+5V
5
6
ADS7806
12 Bits
Out
1
0V-4V
Input
4
–5V
Eliminates errors due to different grounds.
FIGURE 20. Differential Input Data Acquisition.
INA152
2
V₁
DG188
3
5
6
V_O
1
1
Logic
In
FIGURE 21. Digitally Controlled Gain of ±1 Amplifier.
Logic In V_O
0
–V₁
1
+V₁
D₁
V₁
Input
OPA130
2
10pF
3
D₂
1
R₅
2kΩ
INA152
R₁
R₂
R₃
R₄
5
6
V₀ = |V₁|
2
–In
INA152
+In ³
BUF634 inside feedback
loop contributes no error.
5
6
BUF634
1
V_O
R_L
FIGURE 22. Precision Absolute Value Buffer.
INA152
SBOS184
FIGURE 23. High Output Current Precision Difference
Amplifier.
13