OPA2604-Q1 Datasheet, PDF (4/16 Pages) Texas Instruments – DUAL FET-INPUT, LOW DISTORTION OPERATIONAL AMPLIFIER

OPA2604ĆQ1
DUAL FETĆINPUT, LOW DISTORTION
OPERATIONAL AMPLIFIER
SGLS209 − NOVEMBER 2003
TYPICAL CHARACTERISTICS
TOTAL HARMONIC DISTORTION + NOISE
vs FREQUENCY
1
Measurement BW = 80kHz
See ”Distortion Measure−
V_O =
ments” for desription of
0.1
3.5Vrms
1kΩ
test method.
0.01
0.001
G = 100V/V
G = 10V/V
0.0001
20
G = 1V/V
100
1k
Frequency (Hz)
Figure 1
10k 20k
TOTAL HARMONIC DISTORTION + NOISE
vs OUTPUT VOLTAGE
0.1
See ”Distortion Measurements”
for description of test method.
VO
1kΩ
0.01
f = 1kHz
Measurement BW = 80kHz
0.001
0.0001
0.1
1
10
100
Output Voltage (Vp−p)
Figure 2
120
100
80
60
40
20
0
−20
1
OPEN−LOOP GAIN/PHASE vs FREQUENCY
0
−45
φ
−90
G
−135
−180
10 100 1k 10k 100k 1M 10M
Frequency (Hz)
Figure 3
INPUT VOLTAGE AND CURRENT NOISE
SPECTRAL DENSITY vs FREQUENCY
1k
1k
100
Voltage Noise
100
10
10
Current Noise
1
1
1
10
100
1k
10k
100k
1M
Frequency (Hz)
Figure 4
INPUT BIAS AND INPUT OFFSET CURRENT
INPUT BIAS AND INPUT OFFSET CURRENT
vs TEMPERATURE
vs INPUT COMMON−MODE VOLTAGE
100nA
10nA
10nA
1nA
10nA
1nA
Input
Bias Current
1nA
1nA
100
Input
Bias Current
100
100
10
Input
Offset Current
10
1
1
−75 −50 −25 0
25 50 75
Ambient Temperature (°C)
Figure 5
0.1
100 125
100
10
−15
Input
Offset Current
−10
−5
0
5
10
Common−Mode Voltage (V)
Figure 6
10
1
15
4
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