OPA322 Datasheet, PDF (7/36 Pages) Texas Instruments – 20-MHz, Low-Noise, 1.8-V, RRI/O, CMOS Operational Amplifier with Shutdown

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OPA322, OPA322S
OPA2322, OPA2322S
OPA4322, OPA4322S
SBOS538E – JANUARY 2011 – REVISED JUNE 2012
140
120
100
80
60
40
20
0
-20
1
TYPICAL CHARACTERISTICS
At T_A = +25°C, V_CM = V_OUT = mid-supply, and R_L = 10 kΩ, unless otherwise noted.
OPEN-LOOP GAIN/PHASE vs FREQUENCY
-20
R_L = 10 kW, 50 pF
V_S = ±2.5 V -40
-60
OPEN-LOOP GAIN vs TEMPERATURE
125
120
10 kW Load
115
-80
110
2 kW Load
-100
105
-120
100
Gain
Phase
10 100
-140
-160
-180
1k 10k 100k 1M 10M 100M
Frequency (Hz)
Figure 1.
95
90
85
-50 -25 0
25 50 75
Temperature (°C)
100 125 150
Figure 2.
INPUT BIAS CURRENT vs SUPPLY VOLTAGE
1
0.8
0.6
0.4
0.2
0
-0.2
-0.4
-0.6
-0.8
I_B-
I_B+
-1
0.9 1.1 1.3 1.5 1.7 1.9 2.1 2.3 2.5 2.7 2.9
Supply Voltage (±V)
Figure 3.
INPUT BIAS CURRENT vs COMMON-MODE VOLTAGE
6
5
4
3
2
1
0
-1
-2
-3
I_B+
-4
I_B-
-5
I_OS
-6
-3 -2.5 -2 -1.5 -1 -0.5 0 0.5 1 1.5 2 2.5 3
Common-Mode Voltage (V)
Figure 4.
INPUT BIAS CURRENT vs TEMPERATURE
1300
1200
I_OS
1100
I_B+
1000
900
I_B-
800
700
600
500
400
300
200
100
0
-100
-50 -25 0
I_B
I_OS
25 50 75
Temperature (°C)
100 125 150
Figure 5.
QUIESCENT CURRENT vs SUPPLY VOLTAGE
1.6
1.55
1.5
1.45
1.4
+125°C
+85°C
1.35
+25°C
-40°C
1.3
1.5 2 2.5 3 3.5 4 4.5 5 5.5
Supply Voltage (V)
Figure 6.
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