INA133_07 Datasheet, PDF (13/18 Pages) Burr-Brown (TI) – High-Speed, Precision DIFFERENCE AMPLIFIERS

2
V₂
INA133
3
V₁
I_O = (V₁ – V₂) (1/25k + 1/R)
5
R
6
R
1
Load I_O
2
V₁
3
1/2 INA2133
A
12
13
V₀₁
14
V₂
FIGURE 15. Precision Voltage-to-Current Converter with
Differential Inputs.
6
INA133
2
5
V₂
5
6
1/2 INA2133
B
10
9
V₀₂
8
3
V₃
R
OPA131
1
I_O Load
I_O = (V₃ – V₂)/R
FIGURE 16. Differential Input Voltage-to-Current Con-
verter for Low I_OUT.
2
V₂
3
V₃
INA133
5
R
6
R < 200Ω
R
1
Gate can be
+V_S –5V
V₀₁ – V₀₂ = 2 (V₂ – V₁)
FIGURE 18. Differential Output Difference Amplifier.
2
V₂
V₃ ³
INA133
5
6
R (R ≥ 200Ω)
1
Gate can be
+V_CC –5V
I_O
=
(V₃
–
R
V₂)
Load
I_O
I_O = (V₃ – V₂) (1/25k + 1/R)
Load I_O
FIGURE 19. Isolating Current Source with Buffering Am-
plifier for Greater Accuracy.
FIGURE 17. Isolating Current Source.
®
13
INA133, INA2133