OPA227_07 Datasheet, PDF (5/27 Pages) Texas Instruments – High Precision, Low Noise OPERATIONAL AMPLIFIERS

TYPICAL PERFORMANCE CURVES
At T_A = +25°C, R_L = 10kΩ, and V_S = ±15V, unless otherwise noted.
OPEN-LOOP GAIN/PHASE vs FREQUENCY
180
0
160
OPA227
–20
140
–40
G
120
–60
100
–80
80
φ
–100
60
–120
40
–140
20
–160
0
–180
–20
0.01 0.10 1
–200
10 100 1k 10k 100k 1M 10M 100M
Frequency (Hz)
OPEN-LOOP GAIN/PHASE vs FREQUENCY
180
0
160
OPA228
–20
140
–40
120
G
–60
100
–80
80
φ
–100
60
–120
40
–140
20
–160
0
–180
–20
0.01 0.10 1
–200
10 100 1k 10k 100k 1M 10M 100M
Frequency (Hz)
140
120
100
80
60
40
-20
–0
0.1
POWER SUPPLY AND COMMON-MODE
REJECTION RATIO vs FREQUENCY
+CMRR
+PSRR
–PSRR
1
10 100 1k 10k 100k 1M
Frequency (Hz)
100k
10k
1k
100
10
1
0.1
INPUT VOLTAGE AND CURRENT NOISE
SPECTRAL DENSITY vs FREQUENCY
Current Noise
Voltage Noise
1
10
100
1k
10k
Frequency (Hz)
0.01
0.001
TOTAL HARMONIC DISTORTION + NOISE
vs FREQUENCY
V_OUT = 3.5Vrms
OPA227
0.0001
G = 1, R_L = 10kΩ
0.00001
20
100
1k
Frequency (Hz)
10k 20k
0.01
0.001
TOTAL HARMONIC DISTORTION + NOISE
vs FREQUENCY
V_OUT = 3.5Vrms
OPA228
0.0001
G = 1, R_L = 10kΩ
0.00001
20
100
1k
Frequency (Hz)
10k 50k
OPA227, 2227, 4227
OPA228, 2228, 4228
5
SBOS110A
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