Datasheet

LTC2497
6
2497fa
INPUT VOLTAGE (V)
–3
INL (ppm OF V
REF
)
–1
1
3
–2
0
2
–1.5 –0.5 0.5 1.5
2497 G01
2.5–2–2.5 –1 0 1 2
V
CC
= 5V
V
REF
= 5V
V
IN(CM)
= 2.5V
f
O
= GND
85°C
–45°C
25°C
INPUT VOLTAGE (V)
–3
INL (ppm OF V
REF
)
–1
1
3
–2
0
2
–0.75 –0.25 0.25 0.75
2497 G02
1.25–1.25
V
CC
= 5V
V
REF
= 2.5V
V
IN(CM)
= 1.25V
f
O
= GND
–45°C, 25°C, 85°C
INPUT VOLTAGE (V)
–3
INL (ppm OF V
REF
)
–1
1
3
–2
0
2
–0.75 –0.25 0.25 0.75
2497 G03
1.25–1.25
V
CC
= 2.7V
V
REF
= 2.5V
V
IN(CM)
= 1.25V
f
O
= GND
–45°C, 25°C, 85°C
INPUT VOLTAGE (V)
–12
TUE (ppm OF V
REF
)
–4
4
12
–8
0
8
–1.5 –0.5 0.5 1.5
2497 G04
2.5–2–2.5 –1 0 1 2
V
CC
= 5V
V
REF
= 5V
V
IN(CM)
= 2.5V
f
O
= GND
85°C
25°C
–45°C
INPUT VOLTAGE (V)
–12
TUE (ppm OF V
REF
)
–4
4
12
–8
0
8
–0.75 –0.25 0.25 0.75
2497 G05
1.25–1.25
V
CC
= 5V
V
REF
= 2.5V
V
IN(CM)
= 1.25V
f
O
= GND
85°C
25°C
–45°C
INPUT VOLTAGE (V)
–12
TUE (ppm OF V
REF
)
–4
4
12
–8
0
8
–0.75 –0.25 0.25 0.75
2497 G06
1.25–1.25
V
CC
= 2.7V
V
REF
= 2.5V
V
IN(CM)
= 1.25V
f
O
= GND
85°C
25°C
–45°C
Typical perForMance characTerisTics
Integral Nonlinearity
(V
CC
= 5V, V
REF
= 5V)
Integral Nonlinearity
(V
CC
= 5V, V
REF
= 2.5V)
Integral Nonlinearity
(V
CC
= 2.7V, V
REF
= 2.5V)
Total Unadjusted Error
(V
CC
= 5V, V
REF
= 5V)
Total Unadjusted Error
(V
CC
= 5V, V
REF
= 2.5V)
Total Unadjusted Error
(V
CC
= 2.7V, V
REF
= 2.5V)
V
IN(CM)
(V)
–1
OFFSET ERROR (ppm OF V
REF
)
0.1
0.2
0.3
2 4
2497 G07
0
–0.1
0 1
3 5 6
–0.2
–0.3
V
CC
= 5V
V
REF
= 5V
V
IN
= 0V
T
A
= 25°C
f
O
= GND
TEMPERATURE (°C)
–45
–0.3
OFFSET ERROR (ppm OF V
REF
)
–0.2
0
0.1
0.2
–15
15
30 90
2497 G08
–0.1
–30 0
45
60
75
0.3
V
CC
= 5V
V
REF
= 5V
V
IN
= 0V
f
O
= GND
V
CC
(V)
2.7
OFFSET ERROR (ppm OF V
REF
)
0.1
0.2
0.3
3.9 4.7
2497 G09
0
–0.1
3.1 3.5
4.3 5.1 5.5
–0.2
–0.3
REF
+
= 2.5V
REF
–
= GND
V
IN
= 0V
V
IN(CM)
= GND
T
A
= 25°C
f
O
= GND
Offset Error vs V
IN(CM)
Offset Error vs Temperature Offset Error vs V
CC