LTC2470_15 Datasheet, PDF (5/22 Pages) Linear Technology – Selectable 208sps/833sps, 16-Bit ADCs with 10ppm/C Max Precision Reference

LTC2470/LTC2472
Typical Performance Characteristics (T_A = 25°C, unless otherwise noted)
Integral Nonlinearity
3 _{VCC = 2.7V}
T_A = –45°C, 25°C, 90°C
2 ^{OUTPUT RATE = 208sps}
1
0
–1
–2
–3
–1.25
–0.75 –0.25 0.25 0.75 1.25
DIFFERENTIAL INPUT VOLTAGE (V)
24702 G01
Integral Nonlinearity
3
2
1
0
–1
–2 V_CC = 5.5V
T_A = –45°C, 25°C, 90°C
OUTPUT RATE = 208sps
–3
–1.25 –0.75 –0.25 0.25 0.75 1.25
DIFFERENTIAL INPUT VOLTAGE (V)
24702 G02
Maximum INL vs Temperature
6 _{OUTPUT RATE = 208sps}
4
V_CC = 5.5V
2
V_CC = 4.1V
0
–2 _{VCC = 2.7V}
–4
–6
–50 –30 –10 10 30 50
TEMPERATURE (°C)
70 90
24702 G03
Offset Error vs Temperature
35
30
V_CC = 5.5V
25
20
15
V_CC = 4.1V
10
V_CC = 2.7V
5
0
–50 –30 –10 10 30 50
TEMPERATURE (°C)
70 90
24702 G04
Conversion Mode Power Supply
Current vs Temperature
4.0
3.9
V_CC = 5.5V
3.8
3.7
V_CC = 4.1V
3.6
3.5
3.4
V_CC = 2.7V
3.3
3.2
3.1
3.0
–50 –30 –10 10 30 50
TEMPERATURE (°C)
70 90
24702 G07
ADC Gain Error vs Temperature
50
40
V_CC = 5.5V
30
20
10
V_CC = 4.1V
0
V_CC = 2.7V
–10
–50 –30
–10 10 30 50
TEMPERATURE (°C)
70 90
24702 G05
Transition Noise vs Temperature
10
9
8
7
6
V_CC = 5.5V
5
4
3
V_CC = 2.7V
2
1
0
–50 –30 –10 10 30 50
TEMPERATURE (°C)
70 90
24702 G06
Sleep Mode Power Supply
Current vs Temperature
350
300
V_CC = 5.5V
250
200
150
V_CC = 4.1V
100
50
V_CC = 2.7V
0
–50 –30 –10 10 30 50
TEMPERATURE (°C)
70 90
24702 G08
V_REF vs Temperature
1.2508
1.2507
1.2506
1.2505
1.2504
1.2503
1.2502
–50 –30 –10 10 30 50
TEMPERATURE (°C)
70 90
24702 G09
For more information www.linear.com/LTC2470
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