Datasheet

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
V
IN
= 0dB
V
IN
= –20dB
V
IN
= –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
V
OUT
= ±2.5V
V
REF
= 2.5V
1416 G06
4096
8192
12288
1.0
0.5
0
–0.5
–1.0
OUTPUT CODE
0
INL ERROR (LSB)
16384
V
OUT
= ±2.5V
V
REF
= 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
f
SAMPLE
= 400kHz
f
a
=87.01171876kHz
f
b
=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 (V
IN
= 100mV)
V
SS
(V
IN
= 10mV)
V
DD
(V
IN
= 10mV)