OPA197_16 Datasheet, PDF (15/39 Pages) Texas Instruments – 36-V, Precision, Rail-to-Rail Input/Output, Low Offset Voltage Operational Amplifiers

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OPA197, OPA2197, OPA4197
SBOS737A – JANUARY 2016 – REVISED JULY 2016
at T_A = 25°C, V_S = ±18 V, V_CM = V_S / 2, R_LOAD = 10 kΩ connected to V_S / 2, and C_L = 100 pF (unless otherwise noted)
1000
500
300
200
V_CM = 0 V (P-Channel)
V_CM = V+ - 100 mV (N-Channel)
100
50
30
20
10
5
3
2
Time (1 s/div)
Peak-to-peak noise = V_RMS × 6.6 = 1.30 V_PP
1
100m
1
10
100
1k
Frequency (Hz)
10k
100k
Figure 19. 0.1-Hz to 10-Hz Noise
0.1
0.01
G = 1 V/V, R_L = 10 k:
G = 1 V/V, R_L = 2 k:
G = 1 V/V, R_L = 2 k:
G = 1 V/V, R_L = 10 k:
Figure 20. Input Voltage Noise Spectral Density
vs Frequency
1
G = 1 V/V, R_L = 10 k:
G = 1 V/V, R_L = 2 k:
G = 1 V/V, R_L = 2 k:
G = 1 V/V, R_L = 10 k:
0.1
0.001
0.01
0.001
0.0001
0.0001
1E-5
10
100
1k
10k
Frequency (Hz)
V_OUT = 3.5 V_RMS, BW = 80 kHz
Figure 21. THD+N Ratio vs Frequency
1.2
100k
1.1
1E-5
0.01
0.1
1
Output Amplitude (V_RMS)
10 20
f = 1 kHz, BW = 80 kHz
Figure 22. THD+N vs Output Amplitude
1.2
V_S = r2.25 V
V_S = r18 V
1.1
1
1
0.9
0.9
0.8
0 4 8 12 16 20 24 28 32 36
Supply Voltage (V)
0.8
-50 -25
0
25
50
75
Temperature (qC)
100 125
Figure 23. Quiescent Current vs Supply Voltage
Figure 24. Quiescent Current vs Temperature
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