Linear Technology DC1190A-B - LTC2365: 12-bit, 1Msps SAR ADC (req DC590B for DC apps, DC890B for AC apps) DC1190A-B DC1190A-B Data Sheet
Product codes
DC1190A-B
LTC2365/LTC2366
6
23656fb
INPUT RESISTANCE (Ω)
0
THD (dB) –81
–80
100
23656 G08
–82
–83
25
50
75
–78
–79
V
DD
= 3V
f
SMPL
= 1Msps
f
IN
= 1MHz
INPUT FREQUENCY (kHz)
0
–40
–20
0
400
23656 G09
–60
–80
100
200
300
500
–100
–120
–140
MAGNITUDE (dB)
V
DD
= 3V
f
SMPL
= 1Msps
f
IN
= 461kHz
SINAD = 72.8dB
THD = –86.1dB
T
A
= 25°C, V
DD
= OV
DD
= V
REF
(LTC2365, 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
461kHz 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 G01
–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 G02
–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 G03
–0.2
–0.6
0
0.4
0.8
–0.4
–0.8
–1.0
2.4
2.7
3.0
3.6
MIN DNL
MAX DNL
MIN INL
MAX INL
CODE
2045
0
COUNT
2000
4000
6000
8000
10000
2046 2047 2048 2049
23656 G04
2050
V
DD
= 3V
INPUT FREQUENCY (kHz)
100
SNR (dB) 72.9
73.1
23656 G05
72.7
72.5
1000
73.5
73.3
V
DD
= 2.35V
V
DD
= 3.6V
V
DD
= 3V
INPUT FREQUENCY (kHz)
100
72.0
SINAD (dB)
72.2
72.4
72.6
72.8
73.0
73.2
1000
23656 G06
V
DD
= 2.35V
V
DD
= 3.6V
V
DD
= 3V
INPUT FREQUENCY (kHz)
100
–84
–83
–81
23656 G07
–85
–86
1000
–87
–88
–82
THD (dB)
V
DD
= 2.35V
V
DD
= 3.6V
V
DD
= 3V
R
IN
= 10Ω
f
SMPL
= 1Msps