ADS62P49 / ADS62P29
ADS62P48 / ADS62P28
www.ti.com............................................................................................................................................................. SLAS635A–APRIL 2009–REVISED JUNE 2009
TYPICAL CHARACTERISTICS – ADS62P49 (continued)
All plots are at 25°C, AVDD = 3.3 V, DRVDD = 1.8 V, maximum rated sampling frequency, sine wave input clock. 1.5 VPP
differential clock amplitude, 50% clock duty cycle, –1 dBFS differential analog input, internal reference mode, 0 dB gain,
LVDS output interface, 32K point FFT (unless otherwise noted)
SNR vs INPUT FREQUENCY
SFDR vs INPUT FREQUENCY ACROSS GAIN
74
73
72
71
70
69
68
67
66
65
64
92
90
88
86
84
82
80
78
76
74
72
Input adjusted to get −1dBFS input
4 dB
2 dB
6 dB
5 dB
0 dB
3 dB
1 dB
0
50 100 150 200 250 300 350 400 450 500
0
50 100 150 200 250 300 350 400 450 500
f
IN
− Input Frequency − MHz
f
IN
− Input Frequency − MHz
G007
G008
Figure 21.
Figure 22.
SINAD vs INPUT FREQUENCY ACROSS GAIN
PERFORMANCE vs INPUT AMPLITUDE, SINGLE TONE
72
71
70
69
68
67
66
65
64
63
62
120
100
80
60
40
20
0
81
SFDR (dBFS)
0 dB
79
1 dB
2 dB
3 dB
77
SNR (dBFS)
75
73
4 dB
5 dB
71
SFDR (dBc)
6 dB
f
IN
= 60 MHz
69
0
50 100 150 200 250 300 350 400 450 500
−100 −90 −80 −70 −60 −50 −40 −30 −20 −10
0
f
IN
− Input Frequency − MHz
Input Amplitude − dBFS
G009
G010
Figure 23.
Figure 24.
PERFORMANCE vs COMMON-MODE INPUT VOLTAGE
SFDR vs AVDD SUPPLY VOLTAGE
88
88
86
84
82
80
78
80
f
IN
= 60 MHz
DRV = 1.8 V
= 60 MHz
DD
87
86
85
84
83
82
81
80
79
78
AV = 3.2 V
DD
f
IN
SFDR
78
76
74
72
70
AV = 3.15 V
DD
AV = 3.3 V
DD
SNR
AV = 3.6 V
DD
AV = 3.4 V
DD
AV = 3.5 V
DD
−40
−20
0
20
40
60
80
1.35
1.40
1.45
1.50
1.55
1.60
1.65
1.70
T
A
− Free-Air Temperature − °C
V
IC
− Common-Mode Input Voltage − V
G012
G011
Figure 25.
Figure 26.
Copyright © 2009, Texas Instruments Incorporated
Submit Documentation Feedback
37
Product Folder Link(s): ADS62P49 / ADS62P29 ADS62P48 / ADS62P28
TI [ TEXAS INSTRUMENTS ]
