
5
LTC1415
TYPICAL PERFORMANCE CHARACTERISTICS
U
W
INPUT FREQUENCY (Hz)
SIGNAL/(NOISE
+
DISTORTION)
(dB)
80
70
60
50
40
30
20
10
0
1k
100k
1M
2M
LTC1415 TPC01
10k
VIN = 0dB
VIN = –20dB
VIN = –60dB
S/(N + D) vs Input Frequency
and Amplitude
INPUT FREQUENCY (Hz)
AMPLITUDE
(dB
BELOW
THE
FUNDAMENTAL)
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
LTC1415 TPC03
THD
2ND
3RD
1k
100k
1M
2M
10k
Distortion vs Input Frequency
INPUT FREQUENCY (Hz)
SIGNAL-TO
-NOISE
RATIO
(dB)
80
70
60
50
40
30
20
10
0
1k
LTC1415 TPC02
100k
1M
2M
10k
Signal-to-Noise Ratio vs
Input Frequency
Spurious-Free Dynamic Range vs
Input Frequency
Intermodulation Distortion Plot
INPUT FREQUENCY (Hz)
10k
SPURIOUS-FREE
DYNAMIC
RANGE
(dB)
0
–10
–20
–30
–50
–60
–70
–80
–90
100k
1M
2M
LTC1415 TPC04
FREQUENCY (Hz)
0
AMPLITUDE
(dB)
0
–20
–40
–60
–80
–100
–120
200k
300k
600k
LTC1415 TPC05
100k
400k
500k
fb – fa
2fb – fa
2fa – fb
2fa
2fb
3fb
fa + 2fb
3fa
2fa + fb
fa + fb
fSAMPLE = 1.25MHz
fIN1 = 86.97509766kHz
fIN2 = 113.2202148kHz
Integral Nonlinearity vs
Output Code
OUTPUT CODE
0
INL
ERROR
(LSBs)
1.00
0.50
0.00
–0.50
–1.00
512 1024 1536
LTC1415 TPC07
2048 2560 3072 3584 4096
Differential Nonlinearity vs
Output Code
OUTPUT CODE
0
DNL
ERROR
(LSBs)
1.00
0.50
0.00
–0.50
–1.00
512 1024 1536
LTC1415 TPC06
2048 2560 3072 3584 4096