AD9260 Analog Devices, AD9260 Datasheet - Page 21

• Manufacturer Part Number: AD9260
• Description: 16-Bit High Speed Oversampled A/D Converter
• Manufacturer: Analog Devices

Specifications of AD9260

• Resolution (bits): 16bit
• # Chan: 1
• Sample Rate: 2.5MSPS
• Interface: Par
• Analog Input Type: Diff-Uni
• Ain Range: 4 V p-p
• Adc Architecture: Sigma-Delta
• Pkg Type: QFP

ADDITIONAL AC CHARACTERIZATION CURVES
AVDD = DVDD = DRVDD = +5 V, 4 V Input Span, A
otherwise noted.
110
105
100
110
105
100
120
115
110
105
100
Figure 53. Single-Tone SFDR vs. Amplitude (f
Figure 55. Single-Tone SFDR vs. Amplitude (f
95
90
85
80
95
90
85
80
95
90
85
80
–50
–50
–50
Figure 54. Single-Tone SFDR vs. Amplitude (f
–45
–45
–45
–40
–40
–40
HALF BIAS
FULL BIAS
20 MSPS
10 MSPS
FULL BIAS
–35
–35
–35
10 MSPS
–30
–30
–30
FULL BIAS
A
A
FULL BIAS
A
20 MSPS
20 MSPS
HALF BIAS
IN
IN
IN
10 MSPS
–25
–25
–25
(dBFS)
(dBFS)
(dBFS)
–20
–20
–20
HALF BIAS
FULL BIAS
20 MSPS
10 MSPS
HALF BIAS
–15
–15
–15
10 MSPS
IN
IN
= 100 kHz, 8x Mode)
= 500 kHz, 2x Mode)
–10
–10
–10
IN
= 1.0 MHz)
FULL BIAS
10 MSPS
–5
–5
–5
IN
= –0.5 dBFS, Differential DC Coupled Input with CML = 2 V, Full Bias, unless
0
0
0
Rev. C | Page 21 of 44
Figure 57. Two-Tone SFDR (F
Figure 58. Two-Tone SFDR (F
120
110
100
120
110
100
120
110
100
90
80
70
60
50
Figure 56. Two-Tone SFDR (F
90
80
70
60
50
90
80
70
60
50
–60
–60
–60
–50
–50
–50
HALF BIAS (dBFS)
FULL BIAS (dBc)
–40
–40
–40
1
1
= 0.95 kHz, F
= 1.9 MHz, F
10 MSPS (dBFS)
20 MSPS (dBc)
A
A
A
FULL BIAS
HALF BIAS
1
IN
IN
IN
= 475 kHz, F
–30
–30
–30
(dBFS)
(dBFS)
(dBFS)
HALF BIAS (dBc)
FULL BIAS (dBFS)
2
2
= 1.05 MHz, 8x Mode, 20 MSPS)
= 2.1 MHz, 4x Mode 20 MSPS)
–20
–20
–20
2
= 525 MHz, 8x Mode)
dBc
20 MSPS (dBFS)
10 MSPS (dBc)
HALF BIAS
FULL BIAS
–10
–10
–10
dBFS
AD9260
0
0
0