Datasheet

LTC2368-16
6
236816f
TYPICAL PERFORMANCE CHARACTERISTICS
32k Point FFT f
S
= 1Msps,
f
IN
= 2kHz SNR, SINAD vs Input Frequency
THD, Harmonics
vs Input Frequency
SNR, SINAD vs Input level,
f
IN
= 2kHz
SNR, SINAD vs Reference
Voltage, f
IN
= 2kHz
THD, Harmonics vs Reference
Voltage, f
IN
= 2kHz
Integral Nonlinearity
vs Output Code
Differential Nonlinearity
vs Output Code DC Histogram
T
A
= 25°C, V
DD
= 2.5V, OV
DD
= 2.5V, REF = 5V,
f
SMPL
= 1Msps, unless otherwise noted.
OUTPUT CODE
0 16384 32768 49152 65536
–1.0
INL ERROR (LSB)
0.0
0.4
0.2
0.6
0.8
–0.2
–0.4
–0.8
–0.6
1.0
236816 G01
OUTPUT CODE
–0.5
DNL ERROR (LSB)
0.4
0.3
0.2
0.1
0.0
–0.4
–0.3
–0.2
–0.1
0.5
236816 G02
0 16384 32768 49152 65536
CODE
32676
0
COUNTS
20000
30000
40000
50000
60000
70000
32677
32678
236816 G03
80000
90000
100000
σ = 0.5
10000
32679 32680
FREQUENCY (kHz)
0 100 200 300 400 500
–180
AMPLITUDE (dBFS)
–60
–40
–20
–80
–100
–120
–140
–160
0
236816 G04
SNR = 94.7dB
THD = –118dB
SINAD = 94.7dB
SFDR = 119dB
FREQUENCY (kHz)
0
70
SNR, SINAD (dBFS)
75
80
85
90
50 100
150
200
236816 G05
95
100
SNR
25 75
125
175
SINAD
FREQUENCY (kHz)
0
–160
HARMONICS, THD (dBFS)
–150
–130
–120
–110
–60
THD
2ND
3RD
–90
50
100
125
236816 G06
–140
–80
–70
–100
25 75
150
175
200
INPUT LEVEL (dB)
–40
93.0
SNR, SINAD (dBFS)
93.5
94.0
94.5
95.0
SINAD
96.0
95.5
–30 –20 –10 0
236816 G07
SNR
REFERENCE VOLTAGE (V)
2.5
93
94
95
SNR
SINAD
4.5
236816 G08
92
91
3 3.5 4 5
90
SNR, SINAD (dBFS)
REFERENCE VOLTAGE (V)
2.5
HARMONICS, THD (dBFS)
–120
–110
THD
3RD
–100
4.5
236816 G09
–130
–140
–125
–115
–105
–135
–145
–150
3
3.5
4
5
2ND