OPA188_13 Datasheet, PDF (12/33 Pages) Texas Instruments – Precision, Low-Noise, Rail-to-Rail Output,36-V, Zero-Drift Operational Amplifiers

OPA188
SBOS642A – MARCH 2013 – REVISED MARCH 2013
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TYPICAL CHARACTERISTICS (continued)
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.
0.1
BW = 80 kHz
-60
0.5
0.48
0.46
0.01
-80
0.44
0.001
-100
0.42
0.4
0.38
0.0001
-120
0.00001
0.01
G = +1, R_L = 10 kW
G = -1, R_L = 10 kW
0.1
1
Output Amplitude (V_RMS)
-140
10 20
Figure 20. THD+N vs OUTPUT AMPLITUDE
0.36
0.34
0.32
Specified Supply-Voltage Range
0.3
0 4 8 12 16 20 24 28 32 36
Supply Voltage (V)
Figure 21. QUIESCENT CURRENT vs SUPPLY VOLTAGE
0.5
0.48
0.46
V_S = ±18 V
V_S = ±2 V
0.44
0.42
0.4
0.38
0.36
0.34
0.32
0.3
-55 -35 -15 5
25 45 65 85 105 125
Temperature (°C)
Figure 22. QUIESCENT CURRENT vs TEMPERATURE
10k
1k
100
10
1
0.1
1
10 100 1k 10k 100k 1M 10M
Frequency (Hz)
Figure 24. OPEN-LOOP OUTPUT IMPEDANCE vs
FREQUENCY
3
V_SUPPLY = 4 V, R_L = 10 kW
2.5
V_SUPPLY = 36 V, R_L = 10 kW
2
1.5
1
0.5
0
-55 -35 -15 5
25 45 65 85 105 125
Temperature (°C)
Figure 23. OPEN-LOOP GAIN vs TEMPERATURE
40
R_L = 10 kW
35
R_ISO = 0 W
30
R_ISO = 25 W
25
R_ISO = 50 W
20
15
G = +1
+18 V
10
Device
RISO
-18 V
RL
CL
5
0
0 100 200 300 400 500 600 700 800 900 1000
Capacitive Load (pF)
Figure 25. SMALL-SIGNAL OVERSHOOT vs
CAPACITIVE LOAD (100-mV Output Step)
12
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