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CLC949ACQ Datasheet(PDF) 3 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Part # CLC949ACQ
Description  Very Low-Power, 12-Bit, 20MSPS Monolithic A/D Convertter
PDF  12 Pages
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Manufacturer  NSC [National Semiconductor (TI)]
Direct Link  http://www.national.com
Logo NSC - National Semiconductor (TI)

CLC949ACQ Datasheet(HTML) 3 Page - National Semiconductor (TI)

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CLC949 Typical Performance Characteristics (+V
DD = + 5V, Med Bias, Fs = 20MSPS: unless specified)
Output Spectrum 1MHz
Frequency (MHz)
0
-40
0
2
4
-120
-80
10
68
-20
-60
-100
Output Spectrum 9MHz
Frequency (MHz)
0
-40
0
2
4
-120
-80
10
68
-20
-60
-100
Output Spectrum 15MHz
Frequency (MHz)
0
-40
0
2
4
-120
-80
10
68
-20
-60
-100
SNR & SFDR vs. Input Amplitude 1MHz
Input Amplitude (dBFS)
80
60
-50
-30
-10
20
0
40
SNR
SFDR
10
-40
-20
0
SNR & SFDR vs. Input Amplitude 5MHz
Input Amplitude (dBFS)
80
60
-50
-30
-10
20
0
40
SNR
SFDR
10
-40
-20
0
SNR & SFDR vs. Input Amplitude 9MHz
Input Amplitude (dBFS)
80
60
-50
-30
-10
20
0
40
SNR
SFDR
10
-40
-20
0
SNR & SFDR vs. Input Frequency
Input Frequency (MHz)
80
100k
10M
100M
50
0
60
70
1M
FS = 20MHz
SFDR (dBc)
SNR (dB)
SNR vs. Sample Rate vs. Bias
Sample Rate (MSPS)
70
60
0.1
1.0
10
40
30
50
100
Low Bias
High Bias
Medium Bias
Fin = 5MHz
SFDR vs. Sample Rate vs. Bias
Sample Rate (MSPS)
80
70
0.1
1.0
10
50
40
60
100
Low Bias
Medium Bias
High Bias
Fin = 5MHz
Two Tone Intermodulation Distortion
Frequency (MHz)
0
-40
0
2
4
-120
-80
10
68
-20
-60
-100
Integral Non-Linearity
Output Code
2.5
1.5
0
1000
2000
-2.5
0.5
3000
4000
2
1
0
-0.5
-1
-1.5
-2
Differential Non-Linearity
Output Code
1.5
0.5
0
1000
2000
-1.5
-0.5
3000
4000
1
0
-1
Pulse Settling Response
Time (ns)
4000
0
100
150
1000
0
2000
200
3000
50
SFDR vs. Input Frequency
40
°C
80
°C
60
°C
0
°C
20
°C
-20
°C
Input Frequency (MHz)
80
76
72
68
64
60
1
10
100
I/O Timing (Convert CLK & Bit Skew)
Time (ns)
400
300
0
4
16
100
0
200
20
812
Output Data
Convert



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