Datasheet

LTC2499
10
2499fd
PSRR vs Frequency at V
CC
(2x Speed Mode)
PSRR vs Frequency at V
CC
(2x Speed Mode)
FREQUENCY AT V
CC
(Hz)
0
–140
RREJECTION (dB)
–120
–80
–60
–40
0
20
100
140
2499 G37
–100
–20
80
180
220200
40
60
120 160
V
CC
= 4.1V DC ±1.4V
REF
+
= 2.5V
REF
–
= GND
IN
+
= GND
IN
–
= GND
f
O
= GND
T
A
= 25°C
FREQUENCY AT V
CC
(Hz)
30600
–60
–40
0
30750
2499 G38
–80
–100
30650 30700 30800
–120
–140
–20
REJECTION (dB)
V
CC
= 4.1V DC ±0.7V
REF
+
= 2.5V
REF
–
= GND
IN
+
= GND
IN
–
= GND
f
O
= GND
T
A
= 25°C
Offset Error vs V
REF
(2x Speed Mode)
PSRR vs Frequency at V
CC
(2x Speed Mode)
V
REF
(V)
0
OFFSET ERROR (µV)
190
200
210
3
5
2499 G35
180
170
160
1 2 4
220
230
240
V
CC
= 5V
V
IN
= 0V
V
IN(CM)
= GND
f
O
= GND
T
A
= 25°C
FREQUENCY AT V
CC
(Hz)
1
0
–20
–40
–60
–80
–100
–120
–140
1k 100k
2499 G36
10 100
10k 1M
REJECTION (dB)
V
CC
= 4.1V DC
REF
+
= 2.5V
REF
–
= GND
IN
+
= GND
IN
–
= GND
f
O
= GND
T
A
= 25°C
typical perForMance characteristics
Offset Error vs Temperature
(2x Speed Mode)
TEMPERATURE (°C)
–45
OFFSET ERROR (µV)
200
210
220
75
2499 G33
190
180
160
–15
15
45
–30 90
0
30
60
170
240
230
V
CC
= 5V
V
REF
= 5V
V
IN
= 0V
V
IN(CM)
= GND
f
O
= GND
Offset Error vs V
CC
(2x Speed Mode)
V
CC
(V)
2 2.5
0
OFFSET ERROR (µV)
100
250
3
4
4.5
2499 G34
50
200
150
3.5
5
5.5
V
REF
= 2.5V
V
IN
= 0V
V
IN(CM)
= GND
f
O
= GND
T
A
= 25°C