OPA376 Datasheet, PDF (6/23 Pages) Burr-Brown (TI) – Precision, Low Noise, Low Quiescent Current, Operational Amplifier

OPA376
OPA2376
OPA4376
SBOS406B – JUNE 2007 – REVISED SEPTEMBER 2007
www.ti.com
TYPICAL CHARACTERISTICS
At T_A = +25°C, R_L = 10kΩ 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
160
140
OPEN-LOOP GAIN/PHASE vs FREQUENCY
0
-20
Gain
-40
Phase
-60
-80
-100
-120
-140
-160
-180
1 10 100 1k 10k 100k 1M 10M
Frequency (Hz)
Figure 1.
OPEN-LOOP GAIN AND POWER-SUPPLY
REJECTION RATIO vs TEMPERATURE
Open-Loop Gain (R_L = 2kW)
POWER-SUPPLY AND COMMON-MODE
REJECTION RATIO vs FREQUENCY
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 2.
0.1Hz to 10Hz
INPUT VOLTAGE NOISE
120
Power-Supply Rejection Ratio
(V_S = 2.1V to 5.5V)
100
80
-50 -25 0
25 50 75 100 125 150
Temperature (°C)
Figure 3.
INPUT VOLTAGE NOISE SPECTRAL DENSITY
100
1s/div
Figure 4.
TOTAL HARMONIC DISTORTION + NOISE
vs FREQUENCY
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.
0.01
0.001
0.0001
10
Gain = 10V/V
Gain = 1V/V
100
1k
10k
Frequency (Hz)
Figure 6.
100k
6
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