Datasheet

LTC2314-14
6
231414fa
For more information www.linear.com/LTC2314-14
TYPICAL PERFORMANCE CHARACTERISTICS
32k Point FFT, f
S
= 4.5Msps
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 8192)
T
A
= 25°C, V
DD
= 5V, OV
DD
= 2.5V, f
SMPL
= 4.5Msps,
unless otherwise noted.
OUTPUT CODE
0
–1.00
–0.75
–0.50
DNL (LSB)
–0.25
0.25
0.00
0.50
0.75
1.00
4096
8192 12288 16384
231414 G02
CODE
8194
COUNTS
8196
8197
231414 G03
8195
8198
8199
8200
σ = 0.7
0
2000
1000
3000
4000
5000
7000
6000
231414 G04
INPUT FREQUENCY (kHz)
AMPLITUDE (dBFS)
0 22501750 2000
750 1000500250
1250 1500
0
–20
–40
–60
–80
–100
–120
–160
–140
V
DD
= 5V
SNR = 77.5dBFS
SINAD = 76.9dBFS
THD = 84.9dB
SFDR = 88.1dB
INPUT FREQUENCY (kHz)
0
72
73
SNR, SINAD (dBFS)
75
74
76
77
78
500250 750 1000 1250 1500 20001750 2250
231414 G05
SINAD
SNR
SINAD
SNR
V
DD
= 5V
V
DD
= 3V
INPUT FREQUENCY (kHz)
0
–105
–95
–100
THD, HARMONICS (dB)
–90
–85
–80
–75
500250 750 1000 1250 1500 20001750 2250
231414 G06
THD
2ND
3RD
R
IN
/C
IN
= 50Ω/47pF
f
S
= 4.5Msps
V
DD
= 3V
TEMPERATURE (°C)
–55 –35
71
74
73
72
SNR, SINAD (dBFS)
75
76
78
77
79
–15 5 25 45 65 85 105 125
231414 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
231414 G08
THD
3RD
2ND
V
DD
= 3V
OUTPUT CODE
0
–2.0
–1.0
–1.5
INL (LSB)
–0.5
0.5
0.0
1.0
1.5
2.0
4096
8192 12288 16384
231414 G01
INPUT FREQUENCY (kHz)
0
–105
–95
–100
THD, HARMONICS (dB)
–90
–85
–80
–75
500250 750 1000
15001250 20001750 2250
231414 G06a
THD
2ND
3RD
R
IN
/C
IN
= 50Ω/47pF
f
S
= 4.5Msps
V
DD
= 5V