OPA2320-Q1_15 Datasheet, PDF (8/31 Pages) Texas Instruments – Precision, 20-MHz, 0.9-pA, Low-Noise, RRIO,CMOS Operational Amplifier

OPA2320-Q1
SLOS884 – SEPTEMBER 2014
www.ti.com
Typical Characteristics (continued)
At T_A = 25°C, V_(CM) = V_O = mid-supply, and R_(L) = 10 kΩ, unless otherwise noted.
1
6
0.8
0.6
I_IB–
I_IB+
5
4
I_IB+
I_IB–
I_IO
3
0.4
2
0.2
1
0
0
-0.2
-1
-0.4
-2
-3
-0.6
-4
-0.8
-5
-1
0.9 1.1 1.3 1.5 1.7 1.9 2.1 2.3 2.5 2.7 2.9
-6
-3 -2.5 -2 -1.5 -1 -0.5 0 0.5 1 1.5 2 2.5 3
Supply Voltage (±V)
Common-Mode Voltage (V)
Figure 7. Input Bias Current vs Supply Voltage
40
35
30
25
20
15
10
5
0
Input Bias Current (pA)
Figure 9. Input Bias Current Distribution
140
PSRR
120
CMRR
100
80
60
40
20
0
100
1k
10k
100k
1M
10M
Frequency (Hz)
Figure 11. CMRR and PSRR vs Frequency
Figure 8. Input Bias Current vs Common-Mode Voltage
1300
1200
I_IB–
1100
I_IB+
1000
I_IO
900
800
700
600
500
400
300
200
100
0
-100
-50 -25 0
I_IB
I_IO
25 50 75 100 125 150
Temperature (°C)
Figure 10. Input Bias Current vs Temperature
130
PSRR
125
CMRR
120
115
110
105
100
95
90
-50 -25 0
V_S = 1.8 to 5.5 V
25 50 75
Temperature (°C)
100 125 150
Figure 12. CMRR and PSRR vs Temperature
8
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