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AD9276 Datasheet(PDF) 15 Page - Analog Devices

Part # AD9276
Description  Octal LNA/VGA/AAF/12-Bit ADC and CW I/Q Demodulator
PDF  49 Pages
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

AD9276 Datasheet(HTML) 15 Page - Analog Devices

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AD9276
Rev. 0 | Page 14 of 48
TYPICAL PERFORMANCE CHARACTERISTICS
TGC MODE
fSAMPLE = 40 MSPS, fIN = 5 MHz, RS = 50 Ω, LNA gain = 21.3 dB, LNA bias = high, PGA gain = 27 dB, AAF LPF cutoff = fSAMPLE/3,
HPF cutoff = LPF cutoff/20.7 (default).
–2.0
–1.5
–0.5
–1.0
0
0.5
1.0
1.5
2.0
0
0.2
0.4
0.6
0.8
1.0
GAIN+ (V)
1.2
1.4
1.6
+85°C
+25°C
–40°C
Figure 5. Gain Error vs. GAIN+ at Three Temperatures
0
5
10
15
20
25
GAIN ERROR (dB)
Figure 6. Gain Error Histogram, GAIN+ = 0.16 V
0
2
4
6
10
8
12
14
GAIN ERROR (dB)
Figure 7. Gain Error Histogram, GAIN+ = 0.8 V
0
5
10
15
20
25
GAIN ERROR (dB)
Figure 8. Gain Error Histogram, GAIN+ = 1.44 V
0
5
10
15
20
25
–1.25 –1.00 –0.75 –0.50 –0.25
0
CHANNEL-TO-CHANNEL GAIN MATCHING (dB)
0.25 0.50 0.75 1.00 1.25
Figure 9. Gain Match Histogram, GAIN+ = 0.3 V
5
0
10
15
20
25
–1.25 –1.00 –0.75 –0.50 –0.25
0
CHANNEL-TO-CHANNEL GAIN MATCHING (dB)
0.25 0.50 0.75 1.00 1.25
Figure 10. Gain Match Histogram, GAIN+ = 1.3 V



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