Usage Examples For Single Amplifier Operation; Figure 5.2 Gain Setting Circuit For Single Amplifier Operation; Table 5.2 Relationship Between Gain Setting And Amplifier Output When Single Amplifier Operation - Toshiba TXZ Series Reference Manual

5.2. Usage examples for single amplifier operation

When using the OPAMP by itself, input it directly to the OPAMP V (+).With reference to the input V (+) of the
OPAMP, the voltage amplified with the magnification set by the following calculation expression is output from
the OPAMP output AMPOUT.
(Formula)
AMPOUT = (1 + R2/R1) × AINxP
Table 5.2 Relationship between gain setting and amplifier output when single amplifier
2018-05-08
AINxP
R1

Figure 5.2 Gain setting circuit for single amplifier operation

Amp output
Gain setting
from AMPOUT
2×
2.5×
3×
3.5×
4×
4.5×
6×
7×
8×
10×
12×
15×
V(+)
V(-)
R2
operation
R1(Ω)
2× 7500
2.5× 6000
3× 5000
3.5× 4286
4× 3750
4.5× 3333
6× 2500
7× 2143
8× 1875
10× 1500
12× 1250
15× 1000
15 / 17
Operational Amplifier
AMPOUT
R2(Ω)
7500
9000
10000
10714
11250
11667
12500
12857
13125
13500
13750
14000
TXZ Family
Rev. 2.0