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AD548 Datasheet(PDF) 4 Page - Analog Devices

Part No. AD548
Description  Precision, Low Power BiFET Op Amp
Download  8 Pages
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Maker  AD [Analog Devices]
Homepage  http://www.analog.com
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AD548 Datasheet(HTML) 4 Page - Analog Devices

   
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COMMON-MODE VOLTAGE – V
10
6
4
2
0
–10
–6
–2
2
6
10
8
Figure 7. Input Bias Current vs.
Common-Mode Voltage
FREQUENCY – Hz
100
80
60
0
–40
1k
10k
100k
1M
10M
–20
20
40
100
80
60
0
–40
–20
20
40
PHASE
GAIN
Figure 10. Open Loop Frequency
Response
FREQUENCY – Hz
90
80
70
50
20
1k
10k
100k
1M
40
60
30
Figure 13. CMRR vs. Frequency
FREQUENCY – Hz
4
1
0.001
100
1k
10k
0.01
0.1
100k
FOLLOWER
WITH GAIN = 10
UNITY GAIN
FOLLOWER
Figure 16. Total Harmonic
Distortion vs. Frequency
AD548–Typical Characteristics
TEMPERATURE –
°C
1500
1000
750
500
0
–55
–25
5
35
65
95
125
1250
250
RL = 10k
Figure 9. Open Loop Gain vs.
Temperature
FREQUENCY – Hz
120
100
80
20
–20
100
1k
10k
100k
1M
0
40
60
–SUPPLY
+SUPPLY
Figure 12. PSRR vs. Frequency
10mV
SETTLING TIME – µs
10
0
–5
–10
0
2
4
6
8
5
1mV
1mV
10mV
Figure 15. Output Swing and Error
Voltage vs. Output Settling Time
SOURCE IMPEDANCE –
1,000
100
10
0
100k
1M
10M
100M
1G
10G
100G
10,000
1
AMPLIFIER GENERATED NOISE
RESISTOR JOHNSON
NOISE
1kHz BANDWIDTH
10Hz
BANDWIDTH
WHENEVER JOHNSON NOISE IS GREATER THAN
AMPLIFIER NOISE, AMPLIFIER NOISE CAN BE
CONSIDERED NEGLIGIBLE FOR APPLICATION
Figure 18. Total Noise vs. Source
Impedance
WARM-UP TIME – Seconds
30
20
15
10
0
0
10
20
30
40
50
60
70
25
5
Figure 8. Change in Offset Voltage
vs. Warm-Up Time
SUPPLY VOLTAGE –
±V
120
100
90
80
60
0
2
4
6
8
10
12
14
16
18
110
70
Figure 11. Open Loop Voltage Gain
vs. Supply Voltage
FREQUENCY – Hz
22
20
18
12
8
10
100
1k
10k
100k
1M
10
14
16
0
6
4
2
Figure 14. Large Signal Frequency
Response
FREQUENCY – Hz
160
140
120
60
20
10
100
1k
10k
100k
40
80
100
0
Figure 17. Input Noise Voltage
Spectral Density
–4–
REV. C


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