Datasheet

LTC2471/LTC2473
5
24713fb
For more information www.linear.com/LTC2471
Typical perForMance characTerisTics
Offset Error vs Temperature ADC Gain Error vs Temperature Transition Noise vs Temperature
Conversion Mode Power Supply
Current vs Temperature
Sleep Mode Power Supply
Current vs Temperature
V
REF
vs Temperature
(T
A
= 25°C, unless otherwise noted)
TEMPERATURE (°C)
OFFSET ERROR (LSB)
15
35
24713 G04
10
20
25
30
5
0
V
CC
= 5.5V
V
CC
= 4.1V
V
CC
= 2.7V
–50
–10 10–30
50 70
30
90
TEMPERATURE (°C)
–50
ADC GAIN ERROR (LSB)
50
0
24713 G05
–10
30
10
20
40
–30 30 50 7010–10 90
V
CC
= 5.5V
V
CC
= 4.1V
V
CC
= 2.7V
TEMPERATURE (°C)
TRANSITION NOISE RMS (µV)
6
10
24713 G06
4
5
7
8
9
3
2
1
0
–50
–10 10–30
50 70
30
90
V
CC
= 5.5V
V
CC
= 2.7V
–50
–10 10–30
50 70
30
90
V
CC
= 5.5V
V
CC
= 2.7V
TEMPERATURE (°C)
CONVERSION CURRENT (mA)
4.0
3.9
24713 G07
3.4
3.5
3.6
3.7
3.8
3.3
3.2
3.1
3.0
V
CC
= 4.1V
–50
–10 10–30
50 70
30
90
V
CC
= 5.5V
TEMPERATURE (°C)
SLEEP CURRENT (nA)
350
24713 G08
150
300
250
200
100
50
0
V
CC
= 2.7V
V
CC
= 4.1V
–50
–10 10–30
50 70
30
90
TEMPERATURE (°C)
REFERENCE OUTPUT VOLTAGE (V)
1.2508
24713 G09
1.2502
1.2503
1.2504
1.2505
1.2506
1.2507
Integral Nonlinearity Integral Nonlinearity Maximum INL vs Temperature
DIFFERENTIAL INPUT VOLTAGE (V)
–1.25 –0.75 –0.25
INL (LSB)
1
3
24713 G02
–1
0
2
–2
–3
0.25 0.75
1.25
V
CC
= 5.5V
T
A
= –45°C, 25°C, 90°C
OUTPUT RATE = 208sps
TEMPERATURE (°C)
INL (LSB)
2
6
24713 G03
–2
0
4
–4
–6
–50 –30
10 30 50 70
–10
90
V
CC
= 5.5V
V
CC
= 4.1V
V
CC
= 2.7V
OUTPUT RATE = 208sps
DIFFERENTIAL INPUT VOLTAGE (V)
–1.25 –0.75 –0.25
INL (LSB)
1
3
24713 G01
–1
0
2
–2
–3
0.25 0.75
1.25
V
CC
= 2.7V
T
A
= –45°C, 25°C, 90°C
OUTPUT RATE = 208sps