AD602 AD [Analog Devices], AD602 Datasheet - Page 7

• Manufacturer Part Number: AD602
• Description: Dual, Low Noise, Wideband Variable Gain Amplifiers
• Manufacturer: AD [Analog Devices]

Figure 5. Plot of Separate and Overall Gains in Sequential
Control
Figure 6. Gain Error for Cascaded Stages—Sequential
Control
Figure 7. Gain Error for Cascaded Stages—Parallel
Control
REV. A
–10
90
80
70
60
50
40
30
20
10
–1
–2
–3
–4
–5
–6
–7
–8
0
–1
–2
–3
–4
–5
5
4
3
2
1
0
–0.5
–0.5
5
4
3
2
1
0
–0.1
0
0.0
0.0
A1
0.2
0.5
0.5
0.4
1.0
1.0
V
COMBINED
V
0.6
C
V
C
C
1.5
1.5
0.8
2.0
2.0
A2
1.0
2.5
2.5
1.2
3.0
3.0
–7–
Figure 8. SNR for Cascaded Stages—Parallel Control
Figure 9. Gain Error for Cascaded Stages—Low Ripple
Mode
Figure 10. ISNR vs. Control Voltage—Low Ripple Mode
–0.2
–0.4
–0.6
–0.8
–1.0
–1.2
75
70
65
60
55
50
45
40
35
30
80
75
70
65
60
55
50
45
40
35
1.2
1.0
0.8
0.6
0.4
0.2
0.0
0.0
0.0
0.0
0.1
0.2
0.2
0.2
0.3
0.4
0.4
0.4
0.5
0.6
0.6
0.6
V
V
C
V
C
C
0.7
0.8
0.8
AD600/AD602
0.8
0.9
1.0
1.0
1.0
1.2
1.2
1.1
1.2
1.4
1.4
1.3