OPA322 Datasheet, PDF (8/36 Pages) Texas Instruments – 20-MHz, Low-Noise, 1.8-V, RRI/O, CMOS Operational Amplifier with Shutdown

OPA322, OPA322S
OPA2322, OPA2322S
OPA4322, OPA4322S
SBOS538E – JANUARY 2011 – REVISED JUNE 2012
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TYPICAL CHARACTERISTICS (continued)
At T_A = +25°C, V_CM = V_OUT = mid-supply, and R_L = 10 kΩ, unless otherwise noted.
OFFSET VOLTAGE PRODUCTION HISTOGRAM
OFFSET VOLTAGE vs COMMON-MODE VOLTAGE
14
1
0.8
12
0.6
10
0.4
8
0.2
0
6
-0.2
4
-0.4
-0.6
2
-0.8
Representative Units
V_S = ±2.75 V
0
-1
-3
-2
-1
0
1
2
3
Offset Voltage (mV)
Common-Mode Voltage (V)
Figure 7.
Figure 8.
INPUT VOLTAGE NOISE SPECTRAL DENSITY vs
FREQUENCY
1000
V_S = 1.8 V to 5.5 V
100
10
1
10
100
1k
10 k
100 k
1M
Frequency (Hz)
Figure 9.
0.1 Hz TO 10 Hz INPUT VOLTAGE NOISE
6
5
4
3
2
1
0
-1
-2
-3
-4
0 1 2 3 4 5 6 7 8 9 10
Time (s)
Figure 10.
CLOSED-LOOP GAIN vs FREQUENCY
60
G = +100 V/V
40
V_S = +1.8 V
R_L = 10 kW
C_L = 50 pF
CLOSED-LOOP GAIN vs FREQUENCY
60
G = +100 V/V
40
V_S = +5.5 V
R_L = 10 kW
C_L = 50 pF
20
0
-20
10 k
G = +10 V/V
G = +1 V/V
100 k
1M
Frequency (Hz)
Figure 11.
10 M
100 M
20
0
-20
10 k
G = +10 V/V
G = +1 V/V
100 k
1M
Frequency (Hz)
Figure 12.
10 M
100 M
8
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