AD9243 Analog Devices, AD9243 Datasheet - Page 6

• Manufacturer Part Number: AD9243
• Description: Complete 14-Bit, 3 MSPS Monolithic A/D Converter
• Manufacturer: Analog Devices

Specifications of AD9243

• Resolution (bits): 14bit
• # Chan: 1
• Sample Rate: 3MSPS
• Interface: Par
• Analog Input Type: Diff-Uni,SE-Uni
• Ain Range: (2Vref) p-p,2 V p-p,5V p-p,Uni (Vref) x 2,Uni 2.0V,Uni 5.0V
• Adc Architecture: Pipelined
• Pkg Type: QFP

Typical Differential AC Characterization Curves/Plots
AD9243
Figure 2. SINAD vs. Input Frequency
(Input Span = 5 V, V
Figure 5. SINAD vs. Input Frequency
(Input Span = 2 V, V
–100
–60
–65
–70
–75
–80
–85
–90
–95
90
85
80
75
70
65
60
55
50
90
85
80
75
70
65
60
55
50
100k
100k
Figure 8. THD vs. Sample Rate
(f
V
0.1
IN
CM
= 1.5 MHz, A
= 2.5 V)
–0.5dBFS
–6.0dBFS
–20.0dBFS
–0.5dBFS
–6.0dBFS
–20.0dBFS
INPUT FREQUENCY – Hz
INPUT FREQUENCY – Hz
SAMPLE RATE – MSPS
1M
1M
5V SPAN
2V SPAN
IN
CM
CM
1
= –0.5 dBFS,
= 2.5 V)
= 2.5 V)
10M
10M
20M
20M
5
14.7
13.8
13.0
12.2
11.3
10.5
9.7
8.8
8.0
14.7
13.8
13.0
12.2
11.3
10.5
9.7
8.8
8.0
Figure 6. THD vs. Input Frequency
(Input Span = 2 V, V
Figure 3. THD vs. Input Frequency
(Input Span = 5 V, V
–100
–100
–40
–50
–60
–70
–80
–90
110
100
–40
–50
–60
–70
–80
–90
90
80
70
60
50
40
100k
100k
–60
Figure 9. Single Tone SFDR
(f
IN
–6.0dBFS
–0.5dBFS
–20.0dBFS
dBc – 5V
= 1.5 MHz, V
–6.0dBFS
dBFS – 2V
–50
INPUT FREQUENCY – Hz
INPUT FREQUENCY – Hz
dBc – 2V
–0.5dBFS
–20.0dBFS
–40
AIN – dBFS
–6–
1M
1M
–30
dBFS – 5V
CM
CM
CM
–20
= 2.5 V)
= 2.5 V)
= 2.5 V)
–10
10M
10M
20M
20M
0
(AVDD = +5 V, DVDD = +5 V, DRVDD = +5 V, f
= 3.00 MSPS, T
Figure 7. Typical FFT, f
(Input Span = 2 V, V
Figure 4. Typical FFT, f
(Input Span = 5 V, V
–105
–120
–135
–150
–105
–120
–135
–150
110
105
100
–15
–30
–45
–60
–75
–90
–15
–30
–45
–60
–75
–90
Figure 10. Dual Tone SFDR
(f
V
95
90
85
80
75
70
65
60
0
0
1
CM
–40 –35
A
0
0
= 0.95 MHz, f
6
= +25 C, Differential Input)
5V SPAN - dBc
INPUT POWER LEVEL (F
2
= 2.5 V)
4
5V SPAN - dBFS
6
–30 –25 –20 –15 –10
2V SPAN - dBFS
8
FREQUENCY – MHz
FREQUENCY – MHz
7
1
5
2V SPAN - dBc
2
CM
= 1.04 MHz,
CM
= 2.5 V)
IN
8
1
= 2.5 V)
2
IN
= F
4
= 1.50 MHz
9
= 500 kHz
2
) – dBFS
7
5
–5
REV. A
3
SAMPLE
1
9 3
1.5
1.5
0