Datasheet

ADS62P45, ADS62P44
ADS62P43, ADS62P42
SLAS561C –JULY 2007– REVISED FEBRUARY 2012 www.ti.com
ELECTRICAL CHARACTERISTICS
Typical values are at 25°C, AVDD = 3.3V, DRVDD = 1.8 V to 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.
Min and max values are across the full temperature range T
MIN
= –40°C to T
MAX
= 85°C, AVDD = 3.3 V, DRVDD = 3.3 V,
unless otherwise noted.
ADS62P45 ADS62P44 ADS62P43 ADS62P42
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 74.2 74.5 74.8 74.8
Fin = 50 MHz 70 73.9 74.2 71 74.4 74.5
SNR
Fin = 70 MHz 73.6 70 74 73.9 71 74.1
Signal to noise dBFS
ratio
0 dB gain 72.3 72.3 72.5 72.2
Fin = 190
3.5 dB coarse
MHz
71 71.2 71.6 70.8
gain
RMS Output
Inputs tied to common-mode 1.0 1.0 1.0 1.0 LSB
Noise
Fin = 10 MHz 73.7 74.2 74.6 74.7
Fin = 50 MHz 69 73.3 73.5 70 74.2 74.3
SINAD
Signal to noise Fin = 70 MHz 73.2 69 73.5 73.8 70 73.9
dBFS
and distortion
0 dB gain 71.4 71.8 72 71.5
ratio
Fin = 190
3.5 dB coarse
MHz
70.8 71 71.3 70.9
gain
ENOB Fin = 50 MHz 11.2 11.9 11.3 12
Effective Bits
Fin = 70 MHz 11.2 11.95 11.3 12
Number of Bits
Fin = 10 MHz 88 92 93 94
Fin = 50 MHz 76 80 83 78 87 87
SFDR
Fin = 70 MHz 86 78 85 89 79 89
Spurious Free dBc
Dynamic Range
0 dB gain 81 83 83 81
Fin = 190
3.5 dB coarse
MHz
84 86 87 85
gain
Fin = 10 MHz 88 90 92 93
Fin = 50 MHz 73 79 82 76 86 86
THD
Fin = 70 MHz 84.5 75 84 88 76 88
Total Harmonic dBc
Distortion
0 dB gain 79 80 80 79
Fin = 190
3.5 dB coarse
MHz
81 82 82 82
gain
Fin = 10 MHz 94 93 95 98
Fin = 50 MHz 76 92 93 78 94 97
HD2
Second Fin = 70 MHz 92 78 93 94 79 96
dBc
Harmonic
0 dB gain 86 86 85 86
Distortion
Fin = 190
3.5 dB coarse
MHz
88 88 88 89
gain
Fin = 10 MHz 88 92 93 94
Fin = 50 MHz 76 80 83 78 87 87
HD3
Fin = 70 MHz 86 78 85 89 79 89
Third Harmonic dBc
Distortion
0 dB gain 81 83 83 81
Fin = 190
3.5 dB coarse
MHz
84 86 87 85
gain
Fin = 10 MHz 95 96 97 99
Worst Spur
Fin = 50 MHz 94 95 96 98
(Other than dBc
Fin = 70 MHz 94 95 96 97
HD2, HD3)
Fin = 190 MHz 90 93 95 92
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