AD9268
ADC AC SPECIFICATIONS
AVDD = 1.8 V, DRVDD = 1.8 V, maximum sample rate, VIN = −1.0 dBFS differential input, 1.0 V internal reference, DCS enabled, unless
otherwise noted.
Table 2.
AD9268BCPZ-80
AD9268BCPZ-105
AD9268BCPZ-125
Parameter1
Temp
Min
Typ
Max
Min
Typ
Max
Min Typ
Max
Unit
SIGNAL-TO-NOISE RATIO (SNR)
fIN = 2.4 MHz
fIN = ꢁ± MHz
2ꢀ°C
2ꢀ°C
Full
2ꢀ°C
2ꢀ°C
ꢁ9.ꢁ
ꢁ9.±
ꢁ8.9
ꢁ8.8
ꢁ8.8
ꢁꢁ.2 ꢁ8.2
ꢁ6.ꢀ
dBFS
dBFS
dBFS
dBFS
dBFS
ꢁ8.3
ꢁ8.±
ꢁꢁ.2
ꢁꢁ.1
fIN = 14± MHz
fIN = 2±± MHz
ꢁꢁ.4
ꢁꢀ.ꢀ
ꢁ6.9
ꢁꢀ.±
ꢁꢁ.1
ꢁꢀ.ꢀ
SIGNAL-TO-NOISE-AND-DISTORTION (SINAD)
fIN = 2.4 MHz
fIN = ꢁ± MHz
2ꢀ°C
2ꢀ°C
Full
2ꢀ°C
2ꢀ°C
ꢁ9.4
ꢁ8.ꢀ
ꢁ8.3
ꢁ8.6
ꢁ8.3
ꢁ6.8 ꢁꢁ.ꢁ
ꢁ6.2
dBFS
dBFS
dBFS
dBFS
dBFS
ꢁ8.1
ꢁꢁ.ꢁ
ꢁꢁ.1
ꢁ6.8
fIN = 14± MHz
fIN = 2±± MHz
ꢁꢀ.4
ꢁ4.3
ꢁꢀ.9
ꢁ2.2
ꢁꢀ.8
ꢁ4.±
EFFECTIVE NUMBER OF BITS (ENOB)
fIN = 2.4 MHz
fIN = ꢁ± MHz
fIN = 14± MHz
fIN = 2±± MHz
2ꢀ°C
2ꢀ°C
2ꢀ°C
2ꢀ°C
12.9
12.8
12.2
12.±
12.ꢁ
12.ꢁ
12.3
11.ꢁ
12.ꢁ
12.6
12.3
12.±
Bits
Bits
Bits
Bits
WORST SECOND OR THIRD HARMONIC
fIN = 2.4 MHz
fIN = ꢁ± MHz
2ꢀ°C
2ꢀ°C
Full
2ꢀ°C
2ꢀ°C
−92
−91
−8ꢁ
−93
−9±
−88
dBc
dBc
dBc
dBc
dBc
−88
−8ꢁ
−8ꢁ
−8ꢁ
−8ꢀ
−84
fIN = 14± MHz
fIN = 2±± MHz
−8±
−82
−84
−ꢁꢁ
−83
−ꢁ9
SPURIOUS-FREE DYNAMIC RANGE (SFDR)
fIN = 2.4 MHz
fIN = ꢁ± MHz
2ꢀ°C
2ꢀ°C
Full
2ꢀ°C
2ꢀ°C
92
91
8ꢁ
93
9±
88
dBc
dBc
dBc
dBc
dBc
88
8ꢁ
8ꢁ
8ꢁ
8ꢀ
84
fIN = 14± MHz
fIN = 2±± MHz
8±
82
84
ꢁꢁ
83
ꢁ9
SPURIOUS-FREE DYNAMIC RANGE (SFDR)
Without Dither (AIN@ −23 dBFS)
fIN = 2.4 MHz
2ꢀ°C
2ꢀ°C
2ꢀ°C
2ꢀ°C
93
9ꢀ
98
1±2
1±±
96
96
88
89
9±
89
dBFS
dBFS
dBFS
dBFS
fIN = ꢁ± MHz
fIN = 14± MHz
fIN = 2±± MHz
1±±
With On-Chip Dither (AIN @ −23 dBFS)
fIN = 2.4 MHz
fIN = ꢁ± MHz
fIN = 14± MHz
fIN = 2±± MHz
2ꢀ°C
2ꢀ°C
2ꢀ°C
2ꢀ°C
1±ꢁ
1±ꢁ
1±6
1±4
1±6
1±9
1±4
1±8
1±6
1±6
1±4
1±ꢀ
dBFS
dBFS
dBFS
dBFS
Rev. A | Page 6 of 44
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