Datasheet

5
LTC2401/LTC2402
TYPICAL PERFOR A CE CHARACTERISTICS
UW
Total Unadjusted Error (3V Supply)
INPUT VOLTAGE (V)
0
ERROR (ppm)
0
5
2.0
24012 G01
–5
–10
0.5
1.0
1.5
2.5
10
V
CC
= 3V
V
REF
= 2.5V
T
A
= –55°C, –45°C, 25°C, 90°C
125°C
INPUT VOLTAGE (V)
0
ERROR (ppm)
0
5
2.0
24012 G02
–5
–10
0.5
1.0
1.5
3.02.5
10
V
CC
= 3V
V
REF
= 2.5V
T
A
= –55°C, –45°C, 25°C, 90°C
125°C
INPUT VOLTAGE (V)
–0.3
–10
ERROR (ppm)
–5
0
5
10
–0.25 –0.2 –0.15 –0.1
24012 G03
–0.05 0
T
A
= 25°C
T
A
= –45°C
T
A
= –55°C
T
A
= 90°C
T
A
= 125°C
V
CC
= 3V
V
REF
= 2.5V
INL (3V Supply)
Negative Extended Input Range
Total Unadjusted Error (3V Supply)
Positive Extended Input Range
Total Unadjusted Error (3V Supply)
Total Unadjusted Error (5V Supply)
INPUT VOLTAGE (V)
2.5
–10
ERROR (ppm)
–5
0
5
10
2.55 2.6 2.65 2.7
24012 G04
2.75 2.8
V
CC
= 3V
V
REF
= 2.5V
T
A
= –55°C, –45°C, 25°C, 90°C, 125°C
INPUT VOLTAGE (V)
0
ERROR (ppm)
0
5
4
24012 G05
–5
–10
1
2
3
5
10
V
CC
= 5V
V
REF
= 5V
T
A
= –55°C, –45°C, 25°C, 90°C, 125°C
INL (5V Supply)
INPUT VOLTAGE (V)
0
ERROR (ppm)
0
5
4
24012 G06
–5
–10
1
2
2.5
5
10
3
0.5
1.5
4.5
3.5
V
CC
= 5V
V
REF
= 5V
T
A
= –55°C, –45°C, 25°C, 90°C, 125°C
Negative Extended Input Range
Total Unadjusted Error (5V Supply)
Offset Error vs Reference Voltage
INPUT VOLTAGE (V)
–0.3
–10
ERROR (ppm)
–5
0
5
10
–0.25 –0.2 –0.15 –0.1
24012 G07
–0.05 0
T
A
= 25°C
T
A
= –45°C
T
A
= –55°C
V
CC
= 5V
V
REF
= 5V
T
A
= 90°C
T
A
= 125°C
Positive Extended Input Range
Total Unadjusted Error (5V Supply)
INPUT VOLTAGE (V)
5.0
–10
ERROR (ppm)
–5
0
5
10
5.05 5.1 5.15 5.2
24012 G08
5.25 5.3
T
A
= 25°C
T
A
= –45°C
T
A
= –55°C
T
A
= 90°C
T
A
= 125°C
V
CC
= 5V
V
REF
= 5V
REFERENCE VOLTAGE (V)
0
OFFSET ERROR (ppm)
30
40
50
4
24012 G09
20
10
0
1
2
3
5
V
CC
= 5V
T
A
= 25°C