LTC2309 Linear Technology Corporation, LTC2309 Datasheet - Page 6

• Manufacturer Part Number: LTC2309
• Description: 12-Bit SAR ADC
• Manufacturer: Linear Technology Corporation

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LTC2309
TYPICAL PERFORMANCE CHARACTERISTICS
T
6
A
–0.25
–0.50
–0.75
–1.00
= 25°C, AV
1.00
0.75
0.50
0.25
2.5
2.0
1.5
1.0
0.5
3.0
2.8
2.6
2.4
2.2
2.0
1.8
1.6
1.4
1.2
1.0
0
0
–50
0.1
0
Integral Nonlinearity vs
Output Code
Supply Current vs
Sampling Frequency
Supply Current vs Temperature
–25
DD
SAMPLING FREQUENCY (ksps)
1024
= DV
0
TEMPERATURE (°C)
1
OUTPUT CODE
DD
25
2048
= 5V, f
50
10
SMPL
75
3072
= 14ksps, unless otherwise noted.
100
3209 G04
2309 G01
2309 G07
4096
100
125
–0.25
–0.50
–0.75
–1.00
1.00
0.75
0.50
0.25
–0.5
–1.0
–0.5
–2.0
2.0
1.5
1.0
0.5
10
6
8
4
2
0
0
0
–50
–50 –25
0
Offset Error vs Temperature
Sleep Current vs Temperature
Differential Nonlinearity vs
Output Code
–25
1024
0
0
TEMPERATURE (°C)
TEMPERATURE (°C)
OUTPUT CODE
UNIPOLAR
BIPOLAR
25
25
2048
50
50
75
75
3072
100
100
2309 G02
2309 G05
2309 G08
4096
125
125
–140
–100
–120
1000
–20
–40
–60
–80
900
800
700
600
500
400
300
200
100
–2
–4
–6
0
4
2
0
0
–50 –25
–50
0
1kHz Sine Wave
8192 Point FFT Plot
Full-Scale Error vs Temperature
Analog Input Leakage Current
vs Temperature
–25
1
0
2
0
TEMPERATURE (°C)
TEMPERATURE (°C)
FREQUENCY (kHz)
UNIPOLAR
25
BIPOLAR
25
3
50
50
4
CH (OFF)
SNR = 73.4dB
SINAD = 73.3dB
THD = –88dB
75
75
5
CH (ON)
100
100
6
2309 G06
2309 G03
2309 G09
2309f
125
125
7