AD9255 Analog Devices, AD9255 Datasheet - Page 15

• Manufacturer Part Number: AD9255
• Description: 14-Bit, 125 MSPS/105 MSPS/80 MSPS, 1.8 V Analog-to-Digital Converter
• Manufacturer: Analog Devices

Specifications of AD9255

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

TYPICAL PERFORMANCE CHARACTERISTICS
AVDD = 1.8 V, DRVDD = 1.8 V, SVDD = 1.8 V, sample rate = 125 MSPS, DCS enabled, 1.0 V internal reference, 2 V p-p differential input,
VIN = −1.0 dBFS, and 32k sample, T
–100
–120
–140
–100
–120
–140
–100
–120
–140
–20
–40
–60
–80
–20
–40
–60
–80
–20
–40
–60
–80
Figure 8. AD9255-80 Single-Tone FFT with f
0
0
0
Figure 7. AD9255-80 Single-Tone FFT with f
Figure 6. AD9255-80 Single-Tone FFT with f
0
0
0
HARMONIC
SECOND
10
10
10
HARMONIC
THIRD
HARMONIC
SECOND
FREQUENCY (MHz)
FREQUENCY (MHz)
FREQUENCY (MHz)
20
20
20
HARMONIC
THIRD
A
80MSPS
140.1MHz @ –1dBFS
SNR = 77.0dB (78.0dBFS)
SFDR = 82.1dBc
80MSPS
2.4MHz @ –1dBFS
SNR = 78.2dB (79.2dBFS)
SFDR = 89dBc
80MSPS
70.1MHz @ –1dBFS
SNR = 77.8dB (78.8dBFS)
SFDR = 93.6dBc
= 25°C, unless otherwise noted.
HARMONIC
THIRD
IN
IN
30
30
30
IN
= 140.1 MHz
= 70.1 MHz
= 2.4 MHz
HARMONIC
SECOND
4
4
4
0
0
0
Rev. A | Page 15 of 44
Figure 11. AD9255-80 Single-Tone SNR/SFDR vs. Input Amplitude (A
Figure 10. AD9255-80 Single-Tone FFT with f
–100
–120
–140
–100
–120
–140
–20
–40
–60
–80
–20
–40
–60
–80
120
100
80
60
40
20
Figure 9. AD9255-80 Single-Tone FFT with f
0
0
–100
0
0
0
80MSPS
200.3MHz @ –1dBFS
SNR = 75.9dB (76.9dBFS)
SFDR = 81dBc
HARMONIC
SECOND
–90
SNR (dBFS)
–80
SFDR (dBc)
10
10
–70
INPUT AMPLITUDE (dBFS)
Dither Enabled
f
FREQUENCY (MHz)
FREQUENCY (MHz)
IN
–60
= 98.12 MHz
HARMONIC
SECOND
SFDR (dBFS)
–50
20
20
80MSPS
70.1MHz @ –6dBFS
SNR = 73.2dB (79.2dBFS)
SFDR = 99dBc
SNR (dBc)
–40
IN
HARMONIC
= 70.1 MHz @ −6 dBFS with
THIRD
–30
IN
30
30
= 200.3 MHz
HARMONIC
–20
THIRD
–10
AD9255
4
4
0
IN
0
0
) with