Datasheet

LTC2461/LTC2463
5
24613fa
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)
1
5
24613 G04
–1
0
2
3
4
–2
–3
–4
–5
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)
25
5
24613 G05
0
15
10
20
–25 25 50 750 100
V
CC
= 5.5V
V
CC
= 4.1V
V
CC
= 2.7V
TEMPERATURE (°C)
TRANSITION NOISE RMS (µV)
6
10
24613 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)
2.0
1.9
24613 G07
1.4
1.5
1.6
1.7
1.8
1.3
1.2
1.1
1.0
V
CC
= 4.1V
–50
–10 10–30
50 70
30
90
V
CC
= 5.5V
V
CC
= 2.7V
V
CC
= 4.1V
TEMPERATURE (°C)
SLEEP CURRENT (nA)
350
24613 G08
150
300
250
200
100
50
0
–50
–10 10–30
50 70
30
90
TEMPERATURE (°C)
REFERENCE OUTPUT VOLTAGE (V)
1.2508
24613 G09
1.2502
1.2503
1.2504
1.2505
1.2506
1.2507
V
CC
= 5V
Integral Nonlinearity (V
CC
= 5.5V) Integral Nonlinearity (V
CC
= 2.7V) INL vs Temperature
DIFFERENTIAL INPUT VOLTAGE (V)
–1.25 –0.75 –0.25
INL (LSB)
1
3
24613 G02
–1
0
2
–2
–3
0.25 0.75
1.25
T
A
= –45°C, 25°C, 90°C
TEMPERATURE (°C)
–55
INL (LSB)
1
3
24613 G03
–1
0
2
–2
–3
–35 –15
25 45 65 85
5
125105
V
CC
= 5.5V, 4.1V, 2.7V
DIFFERENTIAL INPUT VOLTAGE (V)
–1.25 –0.75 –0.25
INL (LSB)
1
3
24613 G01
–1
0
2
–2
–3
0.25 0.75
1.25
T
A
= –45°C, 25°C, 90°C