
LTC1403-1/LTC1403A-1
6
14031fc
TYPICAL PERFORMANCE CHARACTERISTICS T
A = 25°C, VDD = 3V. Single ended AIN
+ signal drive
with AIN– = 1.5V DC, differential signals drive both inputs with VCM = 1.5V DC (LTC1403A-1)
SNR vs Input Frequency
FREQUENCY (MHz)
0.1
10.0
ENOBs
(BITS)
SINAD
(dB)
11.0
12.0
1
10
100
14031 G01
9.0
9.5
10.5
11.5
8.5
8.0
62
68
74
56
59
65
71
53
50
FREQUENCY (MHz)
0.1
–80
THD,
2nd,
3rd
(dB)
–74
–68
–62
–56
1
10
100
14031 G02
–86
–92
–98
–104
–50
–44
THD
3rd
2nd
FREQUENCY (MHz)
0.1
68
SFDR
(dB)
56
44
1
10
100
14031 G03
80
74
62
50
86
92
98
104
FREQUENCY (MHz)
0.1
62
SNR
(dB)
56
50
1
10
100
14031 G04
68
65
59
53
71
74
ENOBs and SINAD vs Input
Frequency for Differential Input
Signals
FREQUENCY (MHz)
0.1
10.0
ENOBs
(BITS)
SINAD
(dB)
11.0
12.0
1
10
100
14031 G18
9.0
9.5
10.5
11.5
8.5
8.0
62
68
74
56
59
65
71
53
50
FREQUENCY (MHz)
0.1
–80
THD,
2nd,
3rd
(dB)
–74
–68
–62
–56
1
10
100
14031 G19
–86
–92
–98
–104
–50
–44
THD
3rd
2nd
FREQUENCY (Hz)
MAGNITUDE
(dB)
–60
–30
–20
14031 G05
–70
–80
–120
–100
0
–10
–40
–50
–90
–110
0
700k
350
1.05M
1.4M
FREQUENCY (Hz)
0
MAGNITUDE
(dB)
–60
–30
–20
14031 G06
–70
–80
–120
350k
1.05M
700k
1.4M
–100
0
–10
–40
–50
–90
–110
SFDR vs Input Frequency for
Differential Input Signals
FREQUENCY (MHz)
0.1
68
SFDR
(dB)
56
44
1
10
100
14031 G20
80
74
62
50
86
92
98
104
98kHz Sine Wave 4096 Point
FFT Plot
1.3MHz Sine Wave 4096 Point
FFT Plot
ENOBs and SINAD
vs Input Frequency
SFDR vs Input Frequency
THD, 2nd and 3rd vs Input
Frequency
THD, 2nd and 3rd vs Input
Frequency for Differential Input
Signals