OPA2227-EP_13 Datasheet, PDF (6/23 Pages) Texas Instruments – HIGH PRECISION, LOW NOISE OPERATIONAL AMPLIFIER

OPA2227-EP
SBOS594A – MARCH 2012 – REVISED NOVEMBER 2012
www.ti.com
TYPICAL CHARACTERISTICS (continued)
At T_A = 25°C, R_L = 10 kΩ, V_S = ±15 V (unless otherwise noted).
VOLTAGE NOISE DISTRIBUTION (10Hz)
24
10
WARM-UP OFFSET VOLTAGE DRIFT
8
6
16
4
2
0
–2
8
–4
–6
0
0 3.16 3.25 3.34 3.43 3.51 3.60 3.69 3.78
Noise (nV/√Hz)
–8
–10
0
50
100
150
200
250
300
Time from Power Supply Turn-On (s)
A_OL, CMRR, PSRR vs TEMPERATURE
160
A_OL
150
140
CMRR
130
120
PSRR
110
100
90
80
70
60
–75 –50 –25 0
25 50 75 100 125
Temperature ( °C)
INPUT BIAS CURRENT vs TEMPERATURE
40
30
20
10
0
−10
−20
−30
−40
−50
−60 −40 −20
0 20 40 60 80 100 120 140
Temperature (°C)
INPUT OFFSET CURRENT vs TEMPERATURE
6
5
4
3
2
1
0
−1
−2
−60 −40 −20 0 20 40 60 80 100 120 140
Temperature (°C)
SHORT-CIRCUIT CURRENT vs TEMPERATURE
60
50
40
–I_SC
+I_SC
30
20
10
0
–75 –50 –25
0 25 50
Temperature (°C)
75 100 125
6
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