Datasheet

ADS5421
6
SBAS237E
www.ti.com
TYPICAL CHARACTERISTICS
T
A
= 25°C, +V
SA
= +V
SD
= +5V, differential input range = 1.5V to 3.5V each input (4V
PP
), sampling rate = 40MSPS, internal reference, and VDRV = 3V, unless otherwise
noted.
SPECTRAL PERFORMANCE
Amplitude (dB)
Frequency (MHz)
0481216
20
0
–20
–40
–60
–80
–100
–120
F
IN
= 1MHz, –1dBFS
SFDR = 88.4dBFS
SNR = 76.2dBFS
SPECTRAL PERFORMANCE
Amplitude (dB)
Frequency (MHz)
0481216
20
0
–20
–40
–60
–80
–100
–120
F
IN
= 10MHz, –1dBFS
SFDR = 85dBFS
SNR = 74.5dBFS
SPECTRAL PERFORMANCE
Amplitude (dB)
Frequency (MHz)
0481216
20
0
–20
–40
–60
–80
–100
–120
F
IN
= 15MHz, –1dBFS
SFDR = 84.9dBFS
SNR = 72.7dBFS
SPECTRAL PERFORMANCE
Amplitude (dB)
Frequency (MHz)
0481216
20
0
–20
–40
–60
–80
–100
–120
F
IN
= 15MHz, –3dBFS
SFDR = 87.9dBFS
SNR = 73.6dBFS
SPECTRAL PERFORMANCE
Amplitude (dB)
Frequency (MHz)
0481216
20
0
–20
–40
–60
–80
–100
–120
F
IN
= 15MHz, –6dBFS
SFDR = 85.3dBFS
SNR = 74.6dBFS
2-TONE INTERMODULATION
Amplitude (dB)
Frequency (MHz)
0481216
20
0
–20
–40
–60
–80
–100
–120
F1 (–7dBc) = 14.5MHz
F2 (–7dBc) = 15.5MHz
SFDR = –90dB