ad549sh-883b Analog Devices, Inc., ad549sh-883b Datasheet - Page 7

• Manufacturer Part Number: ad549sh-883b
• Description: Ultralow Input Bias Current Operational Amplifier
• Manufacturer: Analog Devices, Inc.

3000
1000
300
100
30
25
20
15
10
50
45
40
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. G | 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
10
0
Figure 11. Input Bias Current vs. Supply Voltage
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