ADS54J42 Datasheet, PDF (23/81 Pages) Texas Instruments – Dual-Channel, 14-Bit, 625-MSPS, Analog-to-Digital Converter

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ADS54J42
SBAS756A – FEBRUARY 2016 – REVISED MARCH 2016
7.10 Typical Characteristics: Contour
typical values are at T_A = 25°C, full temperature range is from T_MIN = –40°C to T_MAX = 85°C, ADC sampling rate = 625 MSPS,
50% clock duty cycle, AVDD3V = 3.0 V, AVDD = DVDD = 1.9 V, IOVDD = 1.15 V, –1-dBFS differential input, and 0-dB digital
gain (unless otherwise noted)
600
550
71.2
70.8
70.4 ₇₀ 69.6 69.2 68.8 68.4
68
500
450
400
71.2
70.8
70.4
70 ^{69.6 69.2 68.8 68.4}
68
350
71.2
70.8 70.4 ₇₀ 69.6 69.2 68.8 68.4
68
300
50 100 150 200 250 300 350 400 450
Input Frequency, MHz
68
68.5
69
69.5
70
70.5
71
Figure 54. Signal-to-Noise-Ratio with 0-dB Digital Gain
600
65.4
65
64.6 64.2 ^63.8 _63.4
550
63
500
450
65.4
65
64.6
64.2 63.8
63.4
400
350
63
65.4
65
64.6
64.2 63.8 63.4
300
100
200
300
400
500
600
700
Input Frequency, MHz
63
63.5
64
64.5
65
Figure 55. Signal-to-Noise-Ratio with
6-dB Digital Gain
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