OPA388_17 Datasheet, PDF (9/34 Pages) Texas Instruments – Precision, Zero-Drift, Zero-Crossover, True Rail-to-Rail Input/Output, Operational Amplifiers

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OPA388, OPA2388, OPA4388
SBOS777 – DECEMBER 2016
6.7 Typical Characteristics
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)
15
50
45
40
10
35
30
25
20
5
15
10
5
0
0
Input Offset Voltage (µV)
C002
Input Offset Voltage Drift (µV/ƒC)
C001
Figure 1. Offset Voltage Production Distribution
5
4
3
2
1
0
±1
±2
±3
±4
±5
±75 ±50 ±25
0 25 50 75 100 125 150
Temperature (ƒC)
C001
Figure 2. Offset Voltage Drift Distribution
From –40°C to +125°C
5
4
3
2
1
0
±1
±2
±3
V_CM = ±2.85 V
±4
V_CM = 2.85 V
±5
±3
±2
±1
0
1
2
3
Input Common-mode Voltage (V)
C003
Figure 3. Offset Voltage vs Temperature
5
4
3
2
1
0
±1
±2
±3
V_S = ± 1.25 V
V_S = ± 2.75 V
±4
±5
1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 2.8 3.0
Supply Voltage (V)
C001
Figure 4. Offset Voltage vs Common-Mode Voltage
160
180
Open-loop Gain
140
120
135
Open-loop Phase
100
80
90
60
40
45
20
0
0
±20
±40
1
-45
10 100 1k 10k 100k 1M 10M
Frequency (Hz)
C021
Figure 5. Offset Voltage vs Supply Voltage
Figure 6. Open-Loop Gain and Phase vs Frequency
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