LTC2367-18
6
236718f
TYPICAL PERFORMANCE CHARACTERISTICS
32k Point FFT fS = 500ksps,
fIN = 2kHz
SNR, SINAD vs Input Frequency
THD, Harmonics
vs Input Frequency
SNR, SINAD vs Input level,
fIN = 2kHz
SNR, SINAD vs Reference
Voltage, fIN = 2kHz
THD, Harmonics vs Reference
Voltage, fIN = 2kHz
Integral Nonlinearity
vs Output Code
Differential Nonlinearity
vs Output Code
DC Histogram
TA = 25°C, VDD = 2.5V, OVDD = 2.5V, REF = 5V,
fSMPL = 500ksps, unless otherwise noted.
OUTPUT CODE
0
65536
131072
196608
262144
–2.0
INL
ERROR
(LSB)
0.0
0.5
1.0
1.5
–0.5
–1.0
–1.5
2.0
236718 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
236718 G02
0
65536
131072
196608
262144
CODE
COUNTS
25000
30000
35000
236718 G03
15000
0
131067 131069 131071 131073 131075 131077
40000
σ = 1.3
20000
10000
5000
FREQUENCY (kHz)
0
50
100
150
200
250
–180
AMPLITUDE
(dBFS)
–60
–40
–20
–80
–100
–120
–140
–160
0
236718 G04
SNR = 97.2dB
THD = –120dB
SINAD = 97.1dB
SFDR = 122dB
FREQUENCY (kHz)
0
70
SNR,
SINAD
(dBFS)
75
80
85
90
50
100
150
200
236718 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
236718 G06
–140
–80
–70
–100
25
75
150 175 200
INPUT LEVEL (dB)
–40
95.0
SNR,
SINAD
(dBFS)
95.5
96.0
96.5
97.0
97.5
SNR
SINAD
98.0
–30
–20
–10
0
236718 G07
REFERENCE VOLTAGE (V)
2.5
95
96
98
97
SNR
SINAD
4.5
236718 G08
94
93
3
3.5
4
5
92
91
90
SNR,
SINAD
(dBFS)
REFERENCE VOLTAGE (V)
2.5
HARMONICS,
THD
(dBFS)
–120
–110
3RD
–100
4.5
236718 G09
–130
–140
–125
–115
–105
–135
–145
–150
3
3.5
4
5
2ND
THD