Datasheet

LTC2380-16
6
238016fa
TYPICAL PERFORMANCE CHARACTERISTICS
32k Point FFT f
S
= 2Msps,
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
OUTPUT CODE
0 16384 32768 49152 65536
–1.0
INL ERROR (LSB)
0.0
–0.4
–0.2
–0.6
–0.8
0.4
0.2
0.6
0.8
1.0
238016 G01
FREQUENCY (kHz)
0 100 200 300 400 1000900800700600500
–180
AMPLITUDE (dBFS)
–60
–40
–20
–80
–100
–120
–140
–160
0
238016 G04
SNR = 96.4dB
THD = –119dB
SINAD = 96.3dB
SFDR = 122dB
OUTPUT CODE
–0.5
DNL ERROR (LSB)
0.3
0.0
–0.3
–0.4
–0.2
–0.1
0.5
0.2
0.1
0.4
238016 G02
0 16384 32768 49152 65536
CODE
3268032676 32677 32678 32679
0
COUNTS
120000
100000
80000
60000
40000
20000
140000
238016 G03
m = 0.15
T
A
= 25°C, V
DD
= 2.5V, OV
DD
= 2.5V, V
CM
= 2.5V,
REF = 5V, f
SMPL
= 2Msps, unless otherwise noted.
INPUT LEVEL (dB)
SNR, SINAD (dBFS)
97.0
238016 G07
95.0
95.5
96.0
96.5
–40 –30 –20 –10 0
SINAD
SNR
REFERENCE VOLTAGE (V)
SNR, SINAD (dBFS)
96.5
238016 G16
93.0
95.0
95.5
94.0
94.5
93.5
96.0
2.5 3.0 3.5 4.0 4.5 5.0
SINAD
SNR
HARMONICS, THD (dBFS)
–100
–110
238016 G17
–140
–135
–130
–125
–120
–115
–105
THD
2ND
3RD
REFERENCE VOLTAGE (V)
2.5 3.0 3.5 4.0 4.5 5.0
FREQUENCY (kHz)
SNR, SINAD (dBFS)
98
238016 G05
80
84
86
88
82
90
92
94
96
0 25 50 75 100 125 150 175 200
SNR
SINAD
FREQUENCY (kHz)
HARMONICS, THD (dBFS)
–80
238016 G06
–130
–125
–120
–110
–100
–90
–85
–115
–105
–95
0 25 50 75 100 125 150 175 200
THD
3RD
2ND