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AD7982 Datasheet(PDF) 16 Page - Analog Devices

Part # AD7982
Description  Ultralow Power, Low Distortion
Download  32 Pages
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

AD7982 Datasheet(HTML) 16 Page - Analog Devices

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


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