AD9251-80EBZ Analog Devices Inc, AD9251-80EBZ Datasheet - Page 13

• Manufacturer Part Number: AD9251-80EBZ
• Description: 80MSPS ADC Converter Evaluation Board
• Manufacturer: Analog Devices Inc

Specifications of AD9251-80EBZ

• Silicon Manufacturer: Analog Devices
• Application Sub Type: ADC
• Kit Application Type: Data Converter
• Silicon Core Number: AD9251
• Number Of Adc's: 2
• Number Of Bits: 14
• Sampling Rate (per Second): 80M
• Data Interface: SPI™
• Inputs Per Adc: 1 Differential
• Input Range: 1.8 Vpp
• Power (typ) @ Conditions: 33mW @ 20 MSPS
• Voltage Supply Source: Single Supply
• Operating Temperature: -40°C ~ 85°C
• Utilized Ic / Part: AD9251
• Development Tool Type: Hardware - Eval/Demo Board
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

TYPICAL PERFORMANCE CHARACTERISTICS
AD9251-80
AVDD = 1.8 V; DRVDD = 1.8 V, maximum sample rate, 2 V p-p differential input, 1.0 V internal reference; AIN = −1.0 dBFS, DCS
disabled, unless otherwise noted.
Figure 8. Two-Tone FFT with f
–105
–120
–105
–120
–105
–120
–15
–30
–45
–60
–75
–90
–15
–30
–45
–60
–75
–90
–15
–30
–45
–60
–75
–90
0
0
0
80MSPS
30.5MHz @ –7dBFS
32.5MHz @ –7dBFS
SFDR = 89.5dBc (96.5dBFS)
F2 – F1
Figure 7. Single-Tone FFT with f
Figure 6. Single-Tone FFT with f
4
4
4
8
8
8
2F2 + F1
12
12
12
FREQUENCY (MHz)
FREQUENCY (MHz)
FREQUENCY (MHz)
2F1 + F2
16
16
16
F1 + F2
IN1
= 30.5 MHz and f
2
2
20
20
20
6
6
80MSPS
9.7MHz @ –1dBFS
SNR = 73.4dB (74.4dBFS)
SFDR = 94.4dBc
24
80MSPS
70.3MHz @ –1dBFS
SNR = 72.1dB (73.1dBFS)
SFDR = 93.5dBc
24
24
IN
IN
2F2 – F1
= 70.3 MHz
= 9.7 MHz
28
28
28
3
3
IN2
5
5
32
32
32
= 32.5 MHz
2F1 – F2
36
36
36
4
4
Rev. A | Page 13 of 36
Figure 11. Two-Tone SFDR/IMD3 vs. Input Amplitude (AIN) with f
–105
–120
–105
–120
–100
–120
–15
–30
–45
–60
–75
–90
–15
–30
–45
–60
–75
–90
–20
–40
–60
–80
0
0
0
–90
80MSPS
30.5MHz @ –1dBFS
SNR = 73.2dB (74.2dBFS)
SFDR = 93.6dBc
80MSPS
200MHz @ –1dBFS
SNR = 70.5dB (71.5dBFS)
SFDR = 80.2dBc
2
4
Figure 10. Single-Tone FFT with f
Figure 9. Single-Tone FFT with f
6
IMD3 (dBFS)
4
4
–78
SFDR (dBFS)
IMD3 (dBc)
5
8
8
30.5 MHz and f
–66
3
12
12
INPUT AMPLITUDE (dBFS)
SFDR (dBc)
FREQUENCY (MHz)
FREQUENCY (MHz)
16
16
–54
IN2
2
20
20
= 32.5 MHz
–42
6
24
24
IN
IN
= 30.5 MHz
= 200 MHz
28
28
–30
32
32
–18
AD9251
36
36
5
4
3
–6
IN1
=