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ADC-207LM View Datasheet(PDF) - Murata Power Solutions

Part NameDescriptionManufacturer
ADC-207LM 7-Bit, 20MHz, CMOS Flash A/D Converters Murata-ps
Murata Power Solutions Murata-ps
ADC-207LM Datasheet PDF : 6 Pages
1 2 3 4 5 6
ADC-207
7-Bit, 20MHz, CMOS Flash A/D Converters
120
110
100
90
80
OUTPUT 70
CODES 60
50
40
30
20
10
0
0
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
1.8
2
NUMBER OF SAMPLES(X103 )
Figure 5. Beat Frequency Test at 20MHz
120
110
100
90
80
OUTPUT 70
CODES 60
50
40
30
20
10
0
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 1.1 1.2 1.3 1.4 1.5
NUMBER OF SAMPLES(X103 )
Figure 6. 10MHz Envelope Test
FFT TEST
This test actually produces an amplitude versus frequency graph (Figure 7) which indicates harmonic distortion and signal-to-noise ratio. The theoretical
rms signal-to-noise ration for a 7-bit converter is +43.8dB.
70
SAMPSALEMPPLUELSPEUL=S2E5WnsIDTH = 25ns
70
65
65
6600
5555
5500
45
40
35
3300
2255
2200
1155
10
10
5
0
0
–5
–5
–10
–10 00
11
22
33
6699.2.2
44
55
66
FREQUENCY (MHz)
4MHz4FMUHNzDFAUMNEDNATMAELNTAL
2277..33
77
88
99
1100
Figure 7. FFT Test Using the ADC-207
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Technical enquiries email: sales@murata-ps.com, tel: +1 508 339 3000
MDA_ADC-207.B01 Page 5 of 6
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