AD9271 Analog Devices, AD9271 Datasheet - Page 16

• Manufacturer Part Number: AD9271
• Description: Octal LNA/VGA/AAF/ADC and Crosspoint Switch
• Manufacturer: Analog Devices

Specifications of AD9271

• Resolution (bits): 12bit
• # Chan: 8
• Sample Rate: 50MSPS
• Interface: LVDS,Ser
• Analog Input Type: SE-Uni
• Ain Range: 0.25 V p-p,0.32 V p-p,0.4 V p-p
• Adc Architecture: Pipelined
• Pkg Type: QFP

AD9271
TYPICAL PERFORMANCE CHARACTERISTICS
f
SAMPLE
= 50 MSPS, f
–0.5
–1.0
–1.5
–2.0
20
18
16
14
12
10
2.0
1.5
1.0
0.5
8
6
4
2
0
16
14
12
10
8
6
4
2
0
0
–1.0
Figure 18. Gain Error vs. V
0
Figure 19. Gain Error Histogram with V
Figure 20. Gain Error Histogram with V
–0.8
0.1
–0.6
IN
0.2
= 5 MHz, LPF = 1/3 × f
–0.4 –0.2
0.3
GAIN ERROR (dB)
GAIN ERROR (dB)
0.4
–40°C
+85°C
+25°C
V
GAIN
GAIN
SAMPLE SIZE = 720 CHANNELS
0
SAMPLE SIZE = 720 CHANNELS
0.5
at Three Temperatures
(V)
0.2
0.6
0.4
0.7
GAIN
GAIN
SAMPLE
0.6
= 0.1 V
= 0.5 V
0.8
, HPF = 700 kHz, LNA gain = 6×.
0.8
0.9
1.0
1.0
Rev. B | Page 16 of 60
25
20
15
10
5
0
30
25
20
15
10
30
25
20
15
10
5
0
5
0
–1.0
Figure 21. Gain Error Histogram with V
–1.25 –1.00 –0.75 –0.50 –0.25
Figure 22. Gain Match Histogram for V
–1.25 –1.00 –0.75 –0.50 –0.25
Figure 23. Gain Match Histogram for V
–0.8
CHANNEL-TO-CHANNEL GAIN MATCHING (dB)
CHANNEL-TO-CHANNEL GAIN MATCHING (dB)
–0.6
–0.4 –0.2
GAIN ERROR (dB)
SAMPLE SIZE = 720 CHANNELS
0
0
0
0.2
0.25
0.25
0.4
0.50
0.50
GAIN
GAIN
GAIN
0.6
0.75
0.75
= 0.9 V
= 0.2 V
= 0.8 V
1.00
1.00
0.8
1.25
1.25
1.0