OPA320 Datasheet, PDF (7/31 Pages) Texas Instruments – Precision, 20MHz, 0.9pA, Low-Noise, RRIO, CMOS Operational Amplifier with Shutdown

OPA320, OPA2320
OPA320S, OPA2320S
www.ti.com
SBOS513D – AUGUST 2010 – REVISED NOVEMBER 2011
TYPICAL CHARACTERISTICS
At T_A = +25°C, V_CM = V_OUT = mid-supply, and R_L = 10kΩ, unless otherwise noted.
OFFSET VOLTAGE PRODUCTION DISTRIBUTION
OFFSET VOLTAGE DRIFT DISTRIBUTION
14
25
12
20
10
8
15
6
10
4
5
2
0
Offset Voltage (mV)
Figure 1.
0
0.1 0.5 0.9 1.3 1.7 2.1 2.5
2.9
Offset Drift (mV/°C)
Figure 2.
OFFSET VOLTAGE vs COMMON-MODE VOLTAGE
100
80
60
40
20
0
-20
-40
-60
-80
-100
-3 -2.5 -2 -1.5 -1 -0.5 0
Representative Units
V_S = ±2.75V
0.5 1 1.5 2 2.5 3
Common-Mode Voltage (V)
Figure 3.
160
140
120
100
80
60
40
20
0
-20
1
OPEN-LOOP GAIN/PHASE vs FREQUENCY
0
V_S = ±2.5V
C_L = 50pF ^-20
-40
-60
Phase
-80
-100
Gain
-120
-140
-160
-180
10 100 1k 10k 100k 1M 10M 100M
Frequency (Hz)
Figure 4.
OPEN-LOOP GAIN vs TEMPERATURE
140
135
10kW Load
130
125
2kW Load
120
115
110
105
100
-50 -25 0
25 50 75
Temperature (°C)
Figure 5.
100 125 150
QUIESCENT CURRENT vs SUPPLY VOLTAGE
1.5
+125°C
1.45
+85°C
1.4
+25°C
1.35
-40°C
1.3
1.25
1.5 2 2.5 3 3.5 4 4.5 5 5.5
Supply Voltage (V)
Figure 6.
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