Datasheet

LTC2483
27
2483fc
applicaTions inFormaTion
INPUT FREQUENCY (Hz)
0 15 30 45 60 75 90 105 120 135 150 165 180 195 210 225 240
NORMAL MODE REJECTION (dB)
2483 F30
0
–20
–40
–60
–80
–100
–120
V
CC
= 5V
V
REF
= 5V
V
IN(CM)
= 2.5V
V
IN(P-P)
= 5V
T
A
= 25°C
MEASURED DATA
CALCULATED DATA
Figure 30. Input Normal Mode Rejection vs Input Frequency
with Input Perturbation of 100% Full-Scale
(60Hz Notch f
EOSC
= 307.2kHz)
Figure 31. Input Normal Mode Rejection vs Input Frequency
with Input Perturbation of 100% Full-Scale
(50Hz Notch f
EOSC
= 256kHz)
INPUT FREQUENCY (Hz)
0 12.5 25 37.5 50 62.5 75 87.5 100 112.5 125 137.5 150 162.5 175 187.5 200
NORMAL MODE REJECTION (dB)
2483 F31
0
–20
–40
–60
–80
–100
–120
V
CC
= 5V
V
REF
= 5V
V
IN(CM)
= 2.5V
V
IN(P-P)
= 5V
T
A
= 25°C
MEASURED DATA
CALCULATED DATA
Figure 32. Input Normal Mode Rejection vs Input Frequency
with Input Perturbation of 100% Full-Scale (Internal Oscillator)
INPUT FREQUENCY (Hz)
0 20 40 60 80 100 120 140 160 180 200 220
NORMAL MODE REJECTION (dB)
2483 F32
0
–20
–40
–60
–80
–100
–120
V
CC
= 5V
V
REF
= 5V
V
IN(CM)
= 2.5V
V
IN(P-P)
= 5V
T
A
= 25°C
MEASURED DATA
CALCULATED DATA
INPUT FREQUENCY (Hz)
0 15 30 45 60 75 90 105 120 135 150 165 180 195 210 225 240
NORMAL MODE REJECTION (dB)
2483 F33
0
–20
–40
–60
–80
–100
–120
V
CC
= 5V
V
REF
= 5V
V
INCM
= 2.5V
T
A
= 25°C
V
IN(P-P)
= 5V
V
IN(P-P)
= 7.5V
(150% OF FULL SCALE)
Figure 33. Measured Input Normal Mode Rejection vs
Input Frequency with Input Perturbation of 150% Full-
Scale (60Hz Notch f
EOSC
= 307.2kHz)
Figure 34. Measured Input Normal Mode Rejection vs
Input Frequency with Input Perturbation of 150% Full-Scale
(50Hz Notch f
EOSC
= 256kHz)
INPUT FREQUENCY (Hz)
0
NORMAL MODE REJECTION (dB)
2483 F34
0
–20
–40
–60
–80
–100
–120
V
CC
= 5V
V
REF
= 5V
V
IN(CM)
= 2.5V
T
A
= 25°C
V
IN(P-P)
= 5V
V
IN(P-P)
= 7.5V
(150% OF FULL SCALE)
12.5 25 37.5 50 62.5 75 87.5 100 112.5 125 137.5 150 162.5 175 187.5 200