AD549 Analog Devices, AD549 Datasheet - Page 7

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AD549

Manufacturer Part Number
AD549
Description
Ultralow Input-Bias Current Operational Amplifier
Manufacturer
Analog Devices
Datasheet

Specifications of AD549

-3db Bandwidth
1MHz
Slew Rate
3V/µs
Vos
500µV
Ib
150fA
# Opamps Per Pkg
1
Input Noise (nv/rthz)
35nV/rtHz
Vcc-vee
10V to 36V
Isy Per Amplifier
700µA
Packages
TO-X

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3000
1000
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100
30
25
20
15
10
50
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35
30
25
20
Figure 10. Input Bias Current vs. Common-Mode Voltage
5
0
–55
–10
Figure 9. Change in Offset Voltage vs. Warm-Up Time
0
Figure 8. Open-Loop Gain vs. Temperature
1
–25
–5
COMMON-MODE VOLTAGE (V)
2
WARM-UP TIME (Minutes)
5
TEMPERATURE (°C)
3
35
0
4
65
5
5
95
6
125
10
7
Rev. H | Page 7 of 20
100k
160
140
120
100
10k
100
0.1
50
45
40
35
30
25
20
80
60
40
20
1k
10
100k
1
Figure 11. Input Bias Current vs. Power Supply Voltage
10
0
Figure 12. Input Voltage Noise Spectral Density
WHENEVER JOHNSON NOISE IS GREATER THAN
AMPLIFIER NOISE, AMPLIFIER NOISE CAN BE
CONSIDERED NEGLIGIBLE FOR THE APPLICATION
AMPLIFIER GENERATED NOISE
JOHNSON NOISE
Figure 13. Noise vs. Source Resistance
1M
RESISTOR
5
POWER SUPPLY VOLTAGE (±V)
SOURCE RESISTANCE (Ω)
10M
100
FREQUENCY (Hz)
1kHz BANDWIDTH
100M
10
1G
1k
10Hz BANDWIDTH
15
10G
AD549
100G
10k
20

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