OPA388_17 Datasheet, PDF (12/34 Pages) Texas Instruments – Precision, Zero-Drift, Zero-Crossover, True Rail-to-Rail Input/Output, Operational Amplifiers

OPA388, OPA2388, OPA4388
SBOS777 – DECEMBER 2016
www.ti.com
Typical Characteristics (continued)
at T_A = 25°C, V_S = ±2.5 V, V_CM = V_S / 2, R_LOAD = 10 kΩ connected to V_S / 2, and C_L = 100 pF (unless otherwise noted)
0
2.5
±20
±40
2
±60
1.5
±80
±100
1
±120
±140
0.5
±160
±180
100
1k
10k
100k
Frequency (Hz)
C004
G = +1, f = 1 kHz, V_O = 4.5 V_PP, R_L = 2 kΩ, BW = 90 kHz
0
0
0.5
1
1.5
2
2.5
3
Supply Voltage (V)
C001
Figure 19. Spectral Content (With 2-kΩ Load)
2.5
Figure 20. Quiescent Current vs Supply Voltage
180
0.001
V_S = ± 2.75 V
2
160
0.01
1.5
140
0.1
1
V_S = ± 1.1 V
120
1
0.5
0
±75 ±50 ±25
0 25 50 75
Temperature (ƒC)
100 125 150
C001
100
±75 ±50 ±25
0 25 50 75
Temperature (ƒC)
10
100 125 150
C001
Figure 21. Quiescent Current vs Temperature
1k
100
10
1
100m
10m
100
1k
10k 100k
1M
10M 100M
Frequency (Hz)
C003
Figure 22. Open-Loop Gain vs Temperature
100
90
80
70
60
50
40
30
20
10
10
G = -1
100
Capacitive Load (pF)
G = +1
1000
C004
Figure 23. Open-Loop Output Impedance vs Frequency
Figure 24. Small-Signal Overshoot vs Capacitive Load
(10-mV Step)
12
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