AD9258 Analog Devices, AD9258 Datasheet - Page 24

• 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

AD9258
Figure 50. AD9258-125 Single-Tone SNR/SFDR vs. Sample Rate (f
700,000
600,000
500,000
400,000
300,000
200,000
100,000
100
–1
–2
95
90
85
80
75
2
1
0
0
25
0
Figure 51. AD9258-125 Grounded Input Histogram
2048
35
N – 3
Figure 52. AD9258-125 INL with f
SFDR (dBc), CHANNEL B
SFDR (dBc), CHANNEL A
45
4096
N – 2
55
with f
SAMPLE RATE (MSPS)
6144
N – 1
OUTPUT CODE
65
IN
OUTPUT CODE
= 70.1 MHz
8192
75
SNR (dBFS), CHANNEL A
N
SNR (dBFS), CHANNEL B
10,240 12,288 14,336 16,384
85
DITHER ENABLED
DITHER DISABLED
N + 1
IN
95
= 9.7 MHz
105
N + 2
0.72LSB rms
115
N + 3
125
S
)
Rev. A | Page 24 of 44
–0.25
–0.50
0.50
0.25
0
100
0
90
80
70
60
50
40
30
0.75
2048
Figure 54. SNR/SFDR vs. Input Common Mode (VCM)
0.80
Figure 53. AD9258-125 DNL with f
4096
0.85
INPUT COMMON-MODE VOLTAGE (V)
6144
0.90
OUTPUT CODE
with f
SNR (dBFS)
SFDR (dBc)
0.95
8192
IN
= 30 MHz
1.00
10,240 12,288 14,336 16,384
1.05
IN
= 9.7 MHz
1.10
1.15
1.20