ADA4940-1 AD [Analog Devices], ADA4940-1 Datasheet - Page 16

• Manufacturer Part Number: ADA4940-1
• Description: Ultralow Power, Low Distortion
• Manufacturer: AD [Analog Devices]

ADA4940-1/ADA4940-2
–0.25
–0.50
–0.75
–1.00
–1.25
1.50
1.25
1.00
0.75
0.50
0.25
100
0
–2
–4
–6
–8
10
8
Figure 44. Voltage Noise Spectral Density, Referred to Input
0
6
4
2
0
1
0
10
G = +2
10
100
Figure 43. Output Overdrive Recovery, G = 2
100
20
Figure 45. DISABLE Pin Turn-Off Time
200
DISABLE
+OUT, V
–OUT, V
2 × V
30
300
ICM
IN
1k
ICM
40
V
FREQUENCY (Hz)
= 1V
400
ICM
= 1V
TIME (µs)
TIME (ns)
V
50
500
OUT, dm
10k
R1
R1
0.1µF
60
600
R2
R2
+IN
–IN
100k
70
V
700
–FB
+FB
OCM
+2.5V
–2.5V
DISABLE
–OUT
+OUT
80
800
1M
90
900
0V
–2.5V
100
1000
10M
0
–0.25
–0.50
–0.75
–1.00
–1.25
–1.50
–1.75
–2.00
–2.25
–2.50
–2.75
Rev. B | Page 16 of 32
Figure 47. Closed-Loop Output Impedance Magnitude vs. Frequency, G = 1
–0.25
2.50
2.25
2.00
1.75
1.50
1.25
1.00
0.75
0.50
0.25
–0.4
–0.8
–1.2
–1.6
–2.0
2.0
1.6
1.2
0.8
0.4
0.01
0
0
100
0.1
10
0
0
1
0.1
V ICM
V
OUT, dm
0.2
10
R1
R1
0.1µF
INPUT
0.4
OUTPUT
Figure 48. DISABLE Pin Turn-On Time
= 2V p-p
R2
R2
+IN
–IN
20
Figure 46. 0.1% Settling Time
V OCM
–FB
+FB
0.6
+2.5V
–2.5V
DISABLE
–OUT
+OUT
1
30
0.8
FREQUENCY (MHz)
TIME (µs)
TIME (ns)
0V
–2.5V
1.0
40
+OUT, V
–OUT, V
DISABLE
%ERROR
1.2
50
10
ICM
ICM
1.4
= 1V
= 1V
60
1.6
Data Sheet
70
1.8
100
2.0
80
0
–0.25
–0.50
–0.75
–1.00
–1.25
–1.50
–1.75
–2.00
–2.25
–2.50
–2.75
0.5
0.4
0.3
0.2
0.1
0
–0.1
–0.2
–0.3
–0.4
–0.5