ADS5400 Datasheet, PDF (18/55 Pages) Texas Instruments – 12-Bit, 1-GSPS Analog-to-Digital Converter

ADS5400
SLAS611C – OCTOBER 2009 – REVISED JANUARY 2016
www.ti.com
6.9 Typical Characteristics
Typical plots at T_A = 25°C, sampling rate = 1 GSPS, 50% clock duty cycle, AVDD5 = 5 V, AVDD3 = 3.3 V, DVDD3 = 3.3 V,
and 1.5-V_PP differential clock, (unless otherwise noted)
0
ENOB = 9.45 Bits
−10 _{SFDR = 75.4 dBc}
SINAD = 58.7 dBFS
−20 _{SNR = 58.8 dBFS}
−30 ^{THD = 72.5 dBc}
−40
−50
−60
−70
−80
−90
−100
0 50 100 150 200 250 300 350 400 450 500
f − Frequency − MHz
G001
Figure 6. Spectral Performance FFT for 250-MHz Input
Signal
0
ENOB = 9.01 Bits
−10 _{SFDR = 63.5 dBc}
SINAD = 56 dBFS
−20 _{SNR = 57.1 dBFS}
−30 ^{THD = 61.7 dBc}
−40
−50
−60
−70
−80
−90
−100
0 50 100 150 200 250 300 350 400 450 500
f − Frequency − MHz
G003
Figure 8. Spectral Performance FFT for 1.3-GHz Input Signal
1.0
0.8
A_IN = −0.05 dBFS
f_IN = 100.33 MHz
0.6 ^{fS = 1 GSPS}
0.4
0.2
0.0
−0.2
−0.4
−0.6
−0.8
−1.0
0
512 1024 1536 2048 2560 3072 3584 4096
ADC Output Code
G005
Figure 10. Differential Nonlinearity
0
ENOB = 9.31 Bits
−10
SFDR = 71.5 dBc
SINAD = 57.8 dBFS
−20
SNR = 58.04 dBFS
−30
THD = 69.8 dBc
−40
−50
−60
−70
−80
−90
−100
0 50 100 150 200 250 300 350 400 450 500
f − Frequency − MHz
G002
Figure 7. Spectral Performance FFT for 0.9-GHz Input Signal
0
ENOB = 8.6 Bits
−10 _{SFDR = 56.3 dBc}
−20
SINAD = 53.6 dBFS
SNR = 56.4 dBFS
−30 ^{THD = 55.8 dBc}
−40
−50
−60
−70
−80
−90
−100
0 50 100 150 200 250 300 350 400 450 500
f − Frequency − MHz
G004
Figure 9. Spectral Performance FFT for 1.7-GHz Input Signal
2.0
A_IN = −0.05 dBFS
1.5 fIN = 100.33 MHz
f_S = 1 GSPS
1.0
0.5
0.0
−0.5
−1.0
−1.5
−2.0
0
512 1024 1536 2048 2560 3072 3584 4096
ADC Output Code
G006
Figure 11. Integral Nonlinearity
18
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