AD6641 Analog Devices, AD6641 Datasheet - Page 16

• Manufacturer Part Number: AD6641
• Description: 250 MHz Bandwidth DPD Observation Receiver
• Manufacturer: Analog Devices

AD6641
–0.2
–0.4
–0.6
–0.8
–1.0
Figure 17. SNR/SFDR vs. Input Amplitude; 500 MSPS,140.3 MHz
100
1.0
0.8
0.6
0.4
0.2
95
90
85
80
75
70
65
60
55
50
90
80
70
60
50
40
30
20
10
–90
0
0
250
–1
Figure 16. SNR/SFDR vs. Sample Rate and Supply
SNR (dBFS)
–80
SFDR (dBFS)
SFDR (dBc)
300
–70
SFDR (dBc)
1023
SNR (dB)
SNR (dBFS)
Figure 18. INL; 500 MSPS
–60
350
SAMPLE RATE (MSPS)
AMPLITUDE (dB)
OUTPUT CODE
–50
SFDR @ 30.3MHz, 1.8V
SFDR @ 30.3MHz, 1.9V
SFDR @ 100.3MHz, 1.8V
SFDR @ 100.3MHz, 1.9V
SNRFS @ 30.3MHz, 1.8V
SNRFS @ 30.3MHz, 1.9V
SNRFS @ 100.3MHz, 1.8V
SNRFS @ 100.3MHz, 1.9V
2047
400
–40
–30
450
3071
–20
SNRFS, 1.9V
SNR, 1.9V
SFDR, 1.9V
SFDRFS, 1.9V
SNRFS, 1.8V
SNR, 1.8V
SFDR, 1.8V
SFDRFS, 1.8V
500
–10
4095
550
0
Rev. 0 | Page 16 of 28
–105
–120
–0.1
–0.2
–0.3
–0.4
–0.5
–15
–30
–45
–60
–75
–90
0.5
0.4
0.3
0.2
0.1
2.5
2.0
1.5
1.0
0.5
0
0
–1
0
Figure 21. 16k Point Single-Tone FFT; 491.52 MSPS,
N – 3
Figure 20. Grounded Input Histogram; 500 MSPS
25
N – 2
f
50
IN1
1023
= 121.3 MHz, f
Figure 19. DNL; 500 MSPS
N – 1
75
FREQUENCY (MHz)
OUTPUT CODE
100
N
2047
BINS
125
IN2
= 124.7 MHz
N + 1
150
491.52MSPS
f
f
SFDR: 85dBc
IN1
IN2
: 121.3MHz @ –7dBFS
: 124.7MHz @ –7dBFS
N + 2
175
3071
1.24 LSB rms
N + 3 MORE
200
225
4095