OPA2320 Datasheet, PDF (8/32 Pages) Texas Instruments – Precision, 20MHz, 0.9pA, Low-Noise, RRIO, CMOS Operational Amplifier with Shutdown

OPA320, OPA2320
OPA320S, OPA2320S
SBOS513D – AUGUST 2010 – REVISED NOVEMBER 2011
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TYPICAL CHARACTERISTICS (continued)
At T_A = +25°C, V_CM = V_OUT = mid-supply, and R_L = 10kΩ, unless otherwise noted.
INPUT BIAS CURRENT vs SUPPLY VOLTAGE
INPUT BIAS CURRENT vs COMMON-MODE 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)
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 7.
Figure 8.
INPUT BIAS CURRENT DISTRIBUTION
40
35
30
25
20
15
10
5
0
Input Bias Current (pA)
Figure 9.
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 75 100 125 150
Temperature (°C)
Figure 10.
CMRR AND PSRR vs FREQUENCY
140
120
CMRR
100
80
60
40
PSRR
20
0
100
1k
10k
100k
1M
10M
Frequency (Hz)
Figure 11.
CMRR AND PSRR vs TEMPERATURE
130
V_S = 1.8V to 5.5V
125
120
115
110
105
100
95
90
-50
PSRR
CMRR
-25 0
25 50 75
Temperature (°C)
Figure 12.
100 125 150
8
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