OPA376-Q1_16 Datasheet, PDF (10/34 Pages) Texas Instruments – Low-Noise, Low Quiescent Current, Precision Operational Amplifier

OPA376-Q1, OPA2376-Q1, OPA4376-Q1
SBOS549A – APRIL 2011 – REVISED JANUARY 2016
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6.8 Typical Characteristics
At T_A = 25°C, V_S = 5 V, R_L = 10 kΩ connected to V_S / 2, V_CM = V_S / 2, and V_OUT = V_S / 2, unless otherwise noted.
160
140
120
100
80
60
40
20
0
-20
0.1 1
0
-20
-40
Gain
-60
Phase
-80
-100
-120
-140
-160
-180
10 100 1k 10k 100k 1M 10M
Frequency (Hz)
120
V(+) Power-Supply Rejection Ratio
100
80
Common-Mode
Rejection Ratio
60
40
V(-) Power-Supply Rejection Ratio
20
0
10
100
1k
10k
100k
1M
10M
Frequency (Hz)
Figure 1. Open-Loop Gain and Phase vs Frequency
160
Open-Loop Gain (R_L = 2kW)
140
Figure 2. Power-Supply and Common-Mode Rejection Ratio
vs Frequency
120
Power-Supply Rejection Ratio
(V_S = 2.1V to 5.5V)
100
80
-50 -25 0
25 50 75
Temperature (°C)
100 125 150
Figure 3. Open-Loop Gain and Power-Supply Rejection
Ratio vs Temperature
100
1s/div
Figure 4. 0.1-Hz to 10-Hz Input Voltage Noise
1
V_S = 5V, V_CM = 2V, V_OUT = 1V_RMS
0.1
10
1
1
10
100
1k
10k
100k
Frequency (Hz)
Figure 5. Input Voltage Noise Spectral Density
0.01
0.001
0.0001
10
Gain = 10V/V
Gain = 1V/V
100
1k
10k
Frequency (Hz)
100k
Figure 6. Total Harmonic Distortion + Noise vs Frequency
10
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