Datasheet

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InputFrequency(MHz)
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Amplitude(dB)
201510
5
SFDR=88.4dBc
SNR=70.9dBFS
SINAD=70.8dBFS
THD=87.5dBc
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InputFrequency(MHz)
0 25
Amplitude(dB)
201510
5
SFDR=85.6dBc
SNR=70.5dBFS
SINAD=70.4dBFS
THD=83.9dBc
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InputFrequency(MHz)
0 2 20
Amplitude(dB)
1816141210864
SFDR=85.3dBc
SNR=70.8dBFS
SINAD=70.7dBFS
THD=89.3dBc
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InputFrequency(MHz)
0 2 20
Amplitude(dB)
1816141210864
SFDR=82.8dBc
SNR=70.2dBFS
SINAD=70dBFS
THD=82.3dBc
ADS5281
ADS5282
SBAS397I –DECEMBER 2006–REVISED JUNE 2012 www.ti.com
TYPICAL CHARACTERISTICS
At T
A
= +25°C, AVDD = +3.3V, LVDD = 1.8V, clock frequency = 65MSPS, differential clock mode, 1V
PP
clock amplitude, 50%
clock duty cycle, input frequency = 10MHz, –1dBFS differential analog input, 0dB digital gain setting, 1.5V analog input
common-mode, low-frequency noise suppression = off, internal reference mode, I
SET
resistor = 56.2kΩ, and LVDS buffer
current setting = 3.5mA, unless otherwise noted.
SPECTRAL PERFORMANCE SPECTRAL PERFORMANCE
(f
S
= 40MHz, f
IN
= 10MHz) (f
S
= 40MHz, f
IN
= 25MHz)
Figure 4. Figure 5.
SPECTRAL PERFORMANCE SPECTRAL PERFORMANCE
(f
S
= 50MHz, f
IN
= 10MHz) (f
S
= 50MHz, f
IN
= 25MHz)
Figure 6. Figure 7.
26 Copyright © 2006–2012, Texas Instruments Incorporated