OPA445BM Datasheet, PDF (4/25 Pages) Texas Instruments – High Voltage FET-Input OPERATIONAL AMPLIFIER

OPA445
SBOS156B − MARCH 1987 − REVISED APRIL 2008
TYPICAL CHARACTERISTICS
At T_A = +25°C and V_S = ±40V, unless otherwise noted.
140
120
100
80
60
40
20
0
10
OPEN−LOOP GAIN AND PHASE
vs FREQUENCY
−45
θ
−90
Gain
−135
−185
100
1k
10k 100k
1M
10M
Frequency (Hz)
GAIN BANDWIDTH AND SLEW RATE
vs TEMPERATURE
2.6
16
2.4
15
SR
2.2
14
2.0
13
GBW
1.8
12
1.6
11
1.4
−75 −50 −25 0 25 50 75
Ambient Temperature (_C)
10
100 125
100nA
INPUT BIAS CURRENT
vs TEMPERATURE
10nA
1nA
100pA
10pA
1pA
0.1pA
0.01pA
−75 −50 −25 0 25 50 75 100 125
Temperature (_ C)
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OPEN−LOOP GAIN AND SUPPLY CURRENT
vs SUPPLY VOLTAGE
125
4.5
120
115
I_Q
4.0
A_VOL
110
105
3.5
100
95
10
20
30
40
Supply Voltage (±V_S)
3.0
50
GAIN BANDWIDTH AND SLEW RATE
vs SUPPLY VOLTAGE
2.2
19
GBW
2.0
17
1.8
15
SR
1.6
10
20
30
40
Supply Voltage (±V_S)
13
50
INPUT BIAS CURRENT
vs COMMON−MODE VOLTAGE
40
35
30
25
20
15
−I_B
+I_B
10
5
0
−50 −40 −30 −20 −10 0 10 20 30 40 50
Common−Mode Voltage (V)
4