
5
LTC1416
TYPICAL PERFORMANCE CHARACTERISTICS
UW
Distortion vs Input Frequency
Differential Nonlinearity
vs Output Code
Input Common Mode Rejection
vs Input Frequency
INPUT FREQUENCY (Hz)
1k
SIGNAL/(NOISE
+
DISTORTION)
(dB)
90
80
70
60
50
40
30
20
10
0
10k
100k
1416 G01
1M 2M
VIN = 0dB
VIN = –20dB
VIN = –60dB
S/(N + D) vs Input Frequency
and Amplitude
INPUT FREQUENCY (Hz)
1k
SPURIOUS-FREE
DYNAMIC
RANGE
(dB)
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
10k
100k
1416 G04
1M 2M
Spurious-Free Dynamic Range
vs Input Frequency
OUTPUT CODE
0
DNL
ERROR
(LSB)
16384
VOUT = ±2.5V
VREF = 2.5V
1416 G06
4096
8192
12288
1.0
0.5
0
–0.5
–1.0
OUTPUT CODE
0
INL
ERROR
(LSB)
16384
VOUT = ±2.5V
VREF = 2.5V
1416 G07
4096
8192
12288
1.0
0.5
0
–0.5
–1.0
Integral Nonlinearity
vs Output Code
INPUT FREQUENCY (Hz)
1k
COMMON
MODE
REJECTION
(dB)
80
70
60
50
40
30
20
10
0
10k
100k
1416 G09
1M 2M
INPUT FREQUENCY (Hz)
1k
AMPLITUDE
(dB
BELOW
THE
FUNDAMENTAL)
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
–110
10k
100k
1416 G03
1M 2M
THD
2ND
3RD
Signal-to-Noise Ratio
vs Input Frequency
Intermodulation Distortion Plot
Power Supply Feedthrough
vs Ripple Frequency
INPUT FREQUENCY (Hz)
1k
SIGNAL-TO-NOISE
RATIO
(dB)
90
80
70
60
50
40
30
20
10
0
10k
100k
1416 G02
1M 2M
FREQUENCY (Hz)
0
AMPLITUDE
(dB)
0
–20
–40
–60
–80
–100
–120
–140
20
100
140
1416 G05
80
180 200
40 60
120
160
fSAMPLE = 400kHz
fa=87.01171876kHz
fb=113.1835938kHz
RIPPLE FREQUENCY (Hz)
1k
AMPLITUDE
OF
POWER
SUPPLY
FEEDTHROUGH
(dB)
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
10k
100k
1416 G08
1M 2M
DGND (VIN = 100mV)
VSS (VIN = 10mV)
VDD (VIN = 10mV)