AD9643 Analog Devices, AD9643 Datasheet - Page 18

• Manufacturer Part Number: AD9643
• Description: 14-Bit, 170/210/250 MSPS, 1.8 V Dual Analog-to-Digital Converter (ADC)
• Manufacturer: Analog Devices

Specifications of AD9643

• Resolution (bits): 14bit
• # Chan: 2
• Sample Rate: 250MSPS
• Interface: LVDS,Par
• Analog Input Type: Diff-Bip
• Ain Range: 1.75 V p-p
• Adc Architecture: Pipelined
• Pkg Type: CSP

AD9643
Figure 20. AD9643-210 Single-Tone SNR/SFDR vs. Input Amplitude (A
–100
–120
–140
–100
–120
–140
120
100
Figure 18. AD9643-210 Single-Tone FFT with f
Figure 19. AD9643-210 Single-Tone FFT with f
–20
–40
–60
–80
–20
–40
–60
–80
80
60
40
20
–100
0
0
0
0
0
210MSPS
305.1MHz @ –1dBFS
SNR = 67.3dB (68.3dBFS)
SFDR = 75dBc
–90
10
10
SECOND HARMONIC
–80
20
20
SFDR (dBc)
–70
30
30
SECOND HARMONIC
INPUT AMPLITUDE (dBFS)
with f
SFDR (dBFS)
FREQUENCY (MHz)
FREQUENCY (MHz)
SNR (dBFS)
40
40
–60
IN
= 90.1 MHz
THIRD HARMONIC
50
50
–50
60
60
210MSPS
185.1MHz @ –1dBFS
SNR = 70.3dB (71.3dBFS)
SFDR = 86dBc
–40
THIRD HARMONIC
SNR (dBc)
70
70
–30
IN
IN
80
80
= 185.1 MHz
= 305.1 MHz
–20
90
90
–10
100
100
0
IN
Rev. B | Page 18 of 36
)
Figure 22. AD9643-210 Two-Tone SFDR/IMD3 vs. Input Amplitude (A
Figure 23. AD9643-210 Two-Tone SFDR/IMD3 vs. Input Amplitude (A
Figure 21. AD9643-210 Single-Tone SNR/SFDR vs. Input Frequency (f
–100
–120
–100
–120
–20
–40
–60
–80
–20
–40
–60
–80
100
95
90
85
80
75
70
65
60
–90.0
–90.0
0
0
60
with f
with f
90
–78.5
–78.5
IN1
120
IN1
= 184.12, f
= 89.12, f
IMD3 (dBc)
IMD3 (dBc)
150
–67.0
–67.0
INPUT AMPLITUDE (dBFS)
INPUT AMPLITUDE (dBFS)
SFDR (dBFS)
180
IMD3 (dBFS)
SFDR (dBc)
SFDR (dBFS)
FREQUENCY (MHz)
IMD3 (dBFS)
SFDR (dBc)
IN2
IN2
–55.5
–55.5
SNR (dBFS)
SFDR (dBc)
= 92.12 MHz, f
= 187.12 MHz, f
210
240
–44.0
–44.0
270
S
–32.5
–32.5
= 210 MSPS
S
300
= 210 MSPS
Data Sheet
330 360 390
–21.0
–21.0
–7.0
–7.0
IN
IN
IN
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