AD9258 Analog Devices, AD9258 Datasheet - Page 23

• Manufacturer Part Number: AD9258
• Description: 14-Bit, 125 MSPS, 1.8 V Dual Analog-to-Digital Converter (ADC)
• Manufacturer: Analog Devices

Specifications of AD9258

• Resolution (bits): 14bit
• # Chan: 2
• Sample Rate: 125MSPS
• Interface: Par
• Analog Input Type: Diff-Bip
• Ain Range: (2Vref) p-p,1 V p-p,2 V p-p
• Adc Architecture: Pipelined
• Pkg Type: CSP

Figure 44. AD9258-125 Single-Tone SNR/SFDR vs. Input Frequency (f
Figure 45. AD9258-125 Single-Tone SNR/SFDR vs. Input Frequency (f
Figure 46. AD9258-125 Two-Tone SFDR/IMD3 vs. Input Amplitude (A
–100
–120
100
–20
–40
–60
–80
95
90
85
80
75
70
65
95
90
85
80
75
70
65
60
0
–90
0
0
with f
SFDR (dBFS)
–78
IN1
50
50
= 29.1 MHz, f
SFDR (dBc)
IMD3 (dBc)
–66
with 2 V p-p Full Scale
with 1 V p-p Full Scale
INPUT FREQUENCY (MHz)
INPUT FREQUENCY (MHz)
INPUT AMPLITUDE (dBFS)
100
100
SNR (dBFS)
–54
IN2
= 32.1 MHz, f
150
150
SFDR (dBc)
–42
IMD3 (dBFS)
200
200
S
–30
= 125 MSPS
SNR @ –40°C
SFDR @ –40°C
SNR @ +25°C
SFDR @ +25°C
SNR @ +85°C
SFDR @ +85°C
250
250
–18
300
300
–6
IN
IN
IN
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)
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Figure 48. AD9258-125 Two-Tone FFT with f
Figure 47. AD9258-125 Two-Tone SFDR/IMD3 vs. Input Amplitude (A
–100
–120
–100
–120
–140
–100
–120
–140
–20
–40
–60
–80
Figure 49. AD9258-125 Two-Tone FFT with f
–20
–40
–60
–80
–20
–40
–60
–80
0
–90
0
0
0
0
with f
IMD3 (dBFS)
125MSPS
169.1MHz @ –7dBFS
172.1MHz @ –7dBFS
SFDR = 81.7dBc (88.7dBFS)
IN1
–78
SFDR (dBFS)
= 169.1 MHz, f
10
10
IMD3 (dBc)
–66
SFDR (dBc)
INPUT AMPLITUDE (dBFS)
20
20
f
IN2
FREQUENCY (MHz)
FREQUENCY (MHz)
= 172.1 MHz
–54
IN2
= 172.1 MHz, f
30
30
–42
125MSPS
29.1MHz @ –7dBFS
32.1MHz @ –7dBFS
SFDR = 88.8dBc (95.8dBFS)
IN1
= 29.1 MHz and f
40
40
IN1
–30
S
= 169.1 MHz and
= 125 MSPS
50
50
–18
AD9258
IN2
= 32.1 MHz
60
60
–6
IN
)