Datasheet

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SPECIFICATIONS (Continued)
ADS8484
SLAS511 – NOVEMBER 2007
T
A
= – 40 ° C to 85 ° C, +VA = 5 V, +VBD = 3 V or 5 V, V
ref
= 4.096 V, f
SAMPLE
= 1.25 MSPS (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
DYNAMIC CHARACTERISTICS
ADS8484I – 115
V
IN
= 8 V
pp
at 2 kHz
ADS8484IB – 120
ADS8484I – 105
THD Total harmonic distortion
(1)
V
IN
= 8 V
pp
at 20 kHz dB
ADS8484IB – 110
ADS8484I – 100
V
IN
= 8 V
pp
at 100 kHz
ADS8484IB – 103
ADS8484I 96 97
V
IN
= 8 V
pp
at 2 kHz
ADS8484IB 97 98.5
ADS8484I 96
SNR Signal-to-noise ratio
(1)
V
IN
= 8 V
pp
at 20 kHz dB
ADS8484IB 98
ADS8484I 95
V
IN
= 8 V
pp
at 100 kHz
ADS8484IB 97
ADS8484I 96 96
V
IN
= 8 V
pp
at 2 kHz
ADS8484IB 97 98.5
ADS8484I 95
SINAD Signal-to-noise + distortion
(1)
V
IN
= 8 V
pp
at 20 kHz dB
ADS8484IB 97
ADS8484I 93
V
IN
= 8 V
pp
at 100 kHz
ADS8484IB 95
ADS8484I 117
V
IN
= 8 V
pp
at 2 kHz
ADS8484IB 121
ADS8484I 107
SFDR Spurious free dynamic range
(1)
V
IN
= 8 V
pp
at 20 kHz dB
ADS8484IB 113
ADS8484I 102
V
IN
= 8 V
pp
at 100 kHz
ADS8484IB 105
– 3dB Small signal bandwidth 15 MHz
(1) Calculated on the first nine harmonics of the input frequency.
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