Datasheet

LTC2315-12
6
231512fa
For more information www.linear.com/LTC2315-12
TYPICAL PERFORMANCE CHARACTERISTICS
16k Point FFT, f
S
= 5Msps
f
IN
= 500kHz
SNR, SINAD vs Input Frequency
(100kHz to 2.2MHz)
THD, Harmonics vs Input
Frequency (100kHz to 2.2MHz)
THD, Harmonics vs Input
Frequency (100kHz to 2.2MHz)
SNR, SINAD vs Temperature,
f
IN
= 500kHz
THD, Harmonics vs Temperature,
f
IN
= 500kHz
Integral Nonlinearity
vs Output Code
Differential Nonlinearity
vs Output Code
DC Histogram Near Mid-Scale
(Code 2048)
T
A
= 25°C, V
DD
= 5V, OV
DD
= 2.5V, f
SMPL
= 5Msps,
unless otherwise noted.
OUTPUT CODE
0
–1.0
–0.8
–0.6
–0.4
DNL (LSB)
–0.2
0.4
0.2
0.0
0.6
0.8
1.0
1024
2048 3072 4096
231512 G02
CODE
2047
COUNTS
2049
231512 G03
2048
2050 2051
σ = 0.33
0
10000
20000
30000
40000
60000
50000
231512 G04
INPUT FREQUENCY (kHz)
AMPLITUDE (dBFS)
0 25002000
1000500
1500
0
–20
–40
–60
–80
–100
–120
–140
V
DD
= 5V
SNR = 73.1dBFS
SINAD = 72.6dBFS
THD = –84dB
SFDR = 87dBc
INPUT FREQUENCY (kHz)
0
69
70
SNR, SINAD (dBFS)
71
72
73
74
500 1000
1500 2000 2500
231512 G05
SINAD
SNR
SINAD
SNR
V
DD
= 5V
V
DD
= 3V
INPUT FREQUENCY (kHz)
0
–100
–95
THD, HARMONICS (dB)
–90
–85
–80
–75
500 1000
1500 2000 2500
231512 G06
THD
2ND
3RD
R
IN
/C
IN
= 50Ω/47pF
f
S
= 5Msps
V
DD
= 3V
TEMPERATURE (°C)
–55 –35
68
70
69
SNR, SINAD (dBFS)
71
72
74
73
75
–15 5 25 45 65 85 105 125
231512 G07
SNR
SNR
SINAD
SINAD
V
DD
= 5V
V
DD
= 3V
TEMPERATURE (°C)
–55 –35
–100
–95
THD, HARMONICS (dB)
–90
–85
–80
–75
–15 5 25 45 65 85 105 125
231512 G08
THD
3RD
2ND
V
DD
= 3V
OUTPUT CODE
0
–1.0
–0.8
–0.6
–0.4
INL (LSB)
–0.2
0.4
0.2
0.0
0.6
0.8
1.0
1024
2048 3072 4096
231512 G01
INPUT FREQUENCY (kHz)
0
–100
–95
THD, HARMONICS (dB)
–90
–85
–80
–75
500 1000
1500 2000 2500
231512 G06a
THD
2ND
3RD
R
IN
/C
IN
= 50Ω/47pF
f
S
= 5Msps
V
DD
= 5V