Datasheet

LTC2365/LTC2366
7
23656fb
For more information www.linear.com/LTC2365
INPUT RESISTANCE (Ω)
0
–70
–68
–64
75
23656 G17
–72
–74
25 50 100
–76
–78
–66
THD (dB)
V
DD
= 3V
f
SMPL
= 3Msps
f
IN
= 1.5MHz
INPUT FREQUENCY (kHz)
0
0
–20
–40
–60
–80
–100
–120
–140
750 1250
23656 G18
250 500
1000 1500
MAGNITUE (dB)
V
DD
= 3V
f
SMPL
= 3Msps
f
IN
= 994kHz
SINAD = 72dB
THD = –80.3dB
T
A
= 25°C, V
DD
= OV
DD
= V
REF
(LTC2366, Note 4)
typical perForMance characteristics
Integral Nonlinearity
vs Output Code
Differential Nonlinearity
vs Output Code
Integral and Differential
Nonlinearity vs Supply Voltage
Histogram for 16384 Conversions SNR vs Input Frequency SINAD vs Input Frequency
THD vs Input Frequency THD vs Input Resistance
1MHz Sine Wave 8192 FFT Plot
OUTPUT CODE
0
–1.0
INL (LSB)
–0.8
–0.4
–0.2
0
1.0
0.4
1024 2048
23656 G10
–0.6
0.6
0.8
0.2
3072 4096
V
DD
= 3V
OUTPUT CODE
0
–1.0
DNL (LSB)
–0.8
–0.4
–0.2
0
1.0
0.4
1024 2048
23656 G11
–0.6
0.6
0.8
0.2
3072 4096
V
DD
= 3V
SUPPLY VOLTAGE (V)
2.1
INL AND DNL (LSB)
0.2
0.6
1.0
3.3
23656 G12
–0.2
–0.6
0
0.4
0.8
–0.4
–0.8
–1.0
2.4
2.7
3.0
3.6
MIN INL
MAX DNL
MIN DNL
MAX INL
CODE
2045
0
COUNT
2000
4000
6000
8000
10000
2046
2047 2048 2049
23656 G13
2050
V
DD
= 3V
INPUT FREQUENCY (kHz)
100
SNR (dB)
72.6
72.8
23656 G14
72.4
72.2
1000 1500
73.2
73.0
V
DD
= 2.35V
V
DD
= 3.6V
V
DD
= 3V
INPUT FREQUENCY (kHz)
100
70.0
SINAD (dB)
70.5
71.0
71.5
72.0
72.5
73.0
1000 1500
23656 G15
V
DD
= 2.35V
V
DD
= 3.6V
V
DD
= 3V
INPUT FREQUENCY (kHz)
100
THD (dB)
–80
–78
-76
1500
23656 G16
–82
–84
–88
1000
–86
–72
–74
V
DD
= 2.35V
V
DD
= 3.6V
V
DD
= 3V
R
IN
= 10Ω
f
SMPL
= 3Msps