Datasheet

LTC2376 -16
6
237616f
Typical perForMance characTerisTics
32k Point FFT f
S
= 250ksps,
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)
–0.2
0.0
0.2
0.4
0.6
0.8
–0.4
–0.6
–0.8
1.0
237616 G01
FREQUENCY (kHz)
0 25 1251007550
–180
AMPLITUDE (dBFS)
–60
–40
–20
–80
–100
–120
–140
–160
0
237616 G04
SNR = 97.1dB
THD = –125dB
SINAD = 97.1dB
SFDR = 128dB
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
237616 G02
0 16384 32768 49152 65536
CODE
32680
σ = 0.15
32679326783267732676
0
COUNTS
40000
20000
100000
60000
120000
80000
140000
237616 G03
T
A
= 25°C, V
DD
= 2.5V, OV
DD
= 2.5V, V
CM
= 2.5V,
REF = 5V, f
SMPL
= 250ksps, unless otherwise noted.
INPUT LEVEL (dB)
SNR, SINAD (dBFS)
98.0
237616 G07
96.0
96.5
97.0
97.5
–40 –30 –20 –10 0
SNR
SINAD
REFERENCE VOLTAGE (V)
SNR, SINAD (dBFS)
98.0
97.0
97.5
237616 G08
94.0
94.5
95.0
95.5
96.0
96.5
2.5 3.0 3.5 4.0 4.5 5.0
SINAD
SNR
HARMONICS, THD (dBFS)
–100
–110
237616 G09
–150
–135
–140
–145
–130
–125
–120
–115
–105
THD
3RD
REFERENCE VOLTAGE (V)
2.5 3.0 3.5 4.0 4.5 5.0
2ND
FREQUENCY (kHz)
SNR, SINAD (dBFS)
98.0
97.5
237616 G05
93.0
93.5
95.5
95.0
94.0
97.0
96.5
96.0
0 25 50 75 100 125
SNR
SINAD
FREQUENCY (kHz)
HARMONICS, THD (dBFS)
–80
237616 G06
–140
–130
–120
–110
–100
–90
0 25 50 75 100 125
3RD
2ND
THD