Datasheet

5
LTC1412
TYPICAL PERFOR A CE CHARACTERISTICS
UW
INPUT FREQUENCY (Hz)
10
–120
DISTORTION (dB)
–40
–20
0
100 1k 10k
1412 G03
–60
–80
–100
3RD
THD
2ND
Distortion vs Input Frequency
Spurious-Free Dynamic Range
vs Input Frequency
INPUT FREQUENCY (Hz)
2
EFFECTIVE NUMBER OF BITS
4
6
8
10
1k 100k 1M 10M
1412 G01
0
10k
12
S/(N + D) (dB)
62
74
56
68
S/(N + D) and Effective Number of
Bits vs Input Frequency
FREQUENCY (Hz)
10K
–60
SPURIOUS-FREE DYNAMIC RANGE (dB)
–50
–40
–30
–20
100K 1M 10M
1412 G04
–70
–80
–90
–100
–10
0
Signal-to-Noise Ratio
vs Input Frequency
INPUT FREQUENCY (Hz)
10k
40
SIGNAL-TO-NOISE RATIO (dB)
60
80
100k 1M 10M
1412 G02
20
30
50
70
10
0
Integral Nonlinearity
vs Output Code
OUTPUT CODE
0
–1.0
INL (LSBs)
–0.5
0
0.5
1.0
512 1024 1536 2048
1412 G07
2560 3072 3584 4096
Intermodulation Distortion Plot
FREQUENCY (kHz)
0 200 400 600 800 1000 1200 1400
–110
AMPLITUDE (dB)
–100
–80
–70
–90
–60
–50
–40
–30
0
1412 G05
–20
–10
f
SMPL
= 3MHz
f
IN1
= 85.693359kHz
f
IN2
= 114.990234kHz
Differential Nonlinearity
vs Output Code
OUTPUT CODE
0
–1.0
DNL (LSBs)
–0.5
0
0.5
1.0
512 1024 1536 2048
1412 G06
2560 3072 3584 4096
FREQUENCY (kHz)
0 200 400 600 800 1000 1200 1400
–120
AMPLITUDE (dB)
–100
–80
–60
–40
0
1412 F02a
–20
f
SMPL
= 3Msps
f
IN
= 97.412kHz
SFDR = 93.3dB
SINAD = 73dB
Nonaveraged, 4096 Point FFT,
Input Frequency = 100kHz
FREQUENCY (kHz)
0 200 400 600 800 1000 1200 1400
–120
AMPLITUDE (dB)
–100
–80
–60
–40
0
1412 F02B
–20
f
SMPL
= 3Msps
f
IN
= 1.419kHz
SFDR = 83dB
SINAD = 72.5dB
SNR = 73db
Nonaveraged, 4096 Point FFT,
Input Frequency = 1.45kHz