AD9641 Analog Devices, AD9641 Datasheet - Page 10

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AD9641

Manufacturer Part Number
AD9641
Description
14-Bit, 80 MSPS/155 MSPS, 1.8 V Serial Output Analog-to-Digital Converter (ADC)
Manufacturer
Analog Devices
Datasheet

Specifications of AD9641

Resolution (bits)
14bit
# Chan
1
Sample Rate
80MSPS
Interface
Ser
Analog Input Type
Diff-Bip
Ain Range
1.75 V p-p
Adc Architecture
Pipelined
Pkg Type
CSP
AD9641
TYPICAL PERFORMANCE CHARACTERISTICS
AVDD = 1.8 V, DRVDD = 1.8 V, sample rate = maximum sample rate per speed grade, DCS enabled, 1.75 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
0
0
0
Figure 5. AD9641-80 Single-Tone FFT with f
Figure 6. AD9641-80 Single-Tone FFT with f
Figure 7. AD9641-80 Single-Tone FFT with f
0
0
0
80MSPS
30.1MHz @ –1dBFS
SNR = 72.7dB (73.7dBFS)
SFDR = 94dBc
THIRD HARMONIC
10
10
10
SECOND HARMONIC
SECOND HARMONIC
FREQUENCY (MHz)
FREQUENCY (MHz)
FREQUENCY (MHz)
THIRD HARMONIC
A
= 25°C, unless otherwise noted.
20
20
20
80MSPS
70.1MHz @ –1dBFS
SNR = 72.5dB (73.5dBFS)
SFDR = 94.0dBc
THIRD HARMONIC
80MSPS
10.1MHz @ –1dBFS
SNR = 73.0dB (74.0dBFS)
SFDR = 95dBc
IN
IN
IN
30
30
30
= 10.1 MHz
= 30.1 MHz
= 70.1 MHz
40
40
40
Rev. B | Page 10 of 36
–100
–120
–140
–100
–120
–140
–100
–120
–140
–20
–40
–60
–80
–20
–40
–60
–80
–20
–40
–60
–80
Figure 10. AD9641-80 Single-Tone FFT with f
Figure 8. AD9641-80 Single-Tone FFT with f
Figure 9. AD9641-80 Single-Tone FFT with f
0
0
0
0
0
0
80MSPS
140.3MHz @ –1dBFS
SNR = 72.2dB (73.2dBFS)
SFDR = 94.0dBc
80MSPS
180.1MHz @ –1dBFS
SNR = 71.6dB (72.6dBFS)
SFDR = 93dBc
80MSPS
220.1MHz @ –1dBFS
SNR = 71.1dB (72.1dBFS)
SFDR = 92dBc
10
10
10
FREQUENCY (MHz)
FREQUENCY (MHz)
FREQUENCY (MHz)
20
20
20
THIRD HARMONIC
SECOND HARMONIC
SECOND HARMONIC
IN
IN
IN
30
30
30
= 140.1 MHz
= 180.1 MHz
= 220.1 MHz
Data Sheet
40
40
40

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