Datasheet

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ELECTRICAL CHARACTERISTICS
ADS6125, ADS6124
ADS6123, ADS6122
SLAS560A – OCTOBER 2007 – REVISED MARCH 2008
Typical values are at 25 ° C, min and max values are across the full temperature range T
MIN
= – 40 ° C to T
MAX
= 85 ° C, AVDD =
DRVDD = 3.3 V, maximum rated sampling frequency, 50% clock duty cycle, – 1 dBFS differential analog input, internal
reference mode, applies to CMOS and LVDS interfaces, unless otherwise noted.
ADS6125 ADS6124 ADS6123 ADS6122
F
S
= 125 MSPS F
S
= 105 MSPS F
S
= 80 MSPS F
S
= 65 MSPS
PARAMETER TEST CONDITIONS UNIT
MIN TYP MAX MIN TYP MAX MIN TYP MAX MIN TYP MAX
DYNAMIC AC CHARACTERISTICS
Fin = 10 MHz 71.3 71.4 71.6 71.7
Fin = 50 MHz 68.5 71.1 71.1 69 71.4 71.5
Fin = 70 MHz 70.9 68.5 71 71.3 69 71.5
SNR 0 dB Gain 69.5 70 70.3 70.6
Fin = 170
Signal to noise dBFS
3.5 dB Coarse
MHz
ratio, CMOS
68.7 69.4 69.7 69.9
gain
0 dB Gain 68.6 69.2 69.6 69.9
Fin = 230
3.5 dB Coarse
MHz
67.9 68.6 69.1 69.4
gain
Fin = 10 MHz 71.5 71.5 71.8 71.8
Fin = 50 MHz 68.5 71.4 71.3 69 71.5 71.6
Fin = 70 MHz 71.3 68.5 71.3 71.5 69 71.6
SNR 0 dB Gain 70.3 70.3 70.6 70.7
Fin = 170
Signal to noise dBFS
3.5 dB Coarse
MHz
ratio, LVDS
69.8 69.8 70.1 70.1
gain
0 dB Gain 69.6 69.6 70 70.1
Fin = 230
3.5 dB Coarse
MHz
69 69 69.5 69.6
gain
Fin = 10 MHz 71.1 71.3 71.5 71.6
Fin = 50 MHz 68 70.3 70.7 68.5 71.3 71.4
Fin = 70 MHz 70.4 68 70.9 70.9 68.5 71.4
SINAD
Signal to noise 0 dB Gain 67.7 69.5 69.6 70.2
Fin = 170
and distortion dBFS
3.5 dB Coarse
MHz
ratio
67.6 69.1 69.2 69.8
gain
CMOS
0 dB Gain 66.6 68 68.9 69.1
Fin = 230
3.5 dB Coarse
MHz
66.3 68 68.6 69
gain
Fin = 10 MHz 71.5 71.5 71.7 71.7
Fin = 50 MHz 70.6 70.7 71.4 71.5
Fin = 70 MHz 71 71 71.1 71.5
SINAD
Signal to noise 0 dB Gain 69.1 69.7 70.1 70.3
Fin = 170
and distortion dBFS
3.5 dB Coarse
MHz
ratio
69.3 69.5 69.9 70
gain
LVDS
0 dB Gain 68.2 68.1 69.4 69.1
Fin = 230
3.5 dB Coarse
MHz
68.3 68.3 69.2 69.1
gain
ENOB Fin = 50 MHz 11 11.4 11 11.55
Effective Bits
Fin = 70 MHz 11 11.5 11 11.56
number of bits
Fin = 10 MHz 90 91 93 95
Fin = 50 MHz 76 80 83 79 89 89
Fin = 70 MHz 84 76 84 84 79 86
SFDR 0 dB Gain 76 80 81 82
Fin = 170
Spurious free dBc
3.5 dB Coarse
MHz
dynamic range
78 82 83 84
gain
0 dB Gain 75 77 79 79
Fin = 230
3.5 dB Coarse
MHz
76 79 81 82
gain
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Product Folder Link(s): ADS6125, ADS6124 ADS6123, ADS6122