參數(shù)資料
型號: LTC2480IMS
廠商: LINEAR TECHNOLOGY CORP
元件分類: ADC
英文描述: 1-CH 16-BIT DELTA-SIGMA ADC, SERIAL ACCESS, PDSO10
封裝: PLASTIC, MSOP-10
文件頁數(shù): 30/40頁
文件大?。?/td> 601K
代理商: LTC2480IMS
36
LTC2480
2480fa
APPLICATIO S I FOR ATIO
WU
UU
Figure 37. Measured Input Normal Mode Rejection vs
Input Frequency with Input Perturbation of 150% Full
Scale (60Hz Notch)
INPUT FREQUENCY (Hz)
0
15
30
45
60
75
90
105 120 135 150 165 180 195 210 225 240
NORMAL
MODE
REJECTION
(dB)
2480 F37
0
–20
–40
–60
–80
–100
–120
VCC = 5V
VREF = 5V
VINCM = 2.5V
TA = 25°C
VIN(P-P) = 5V
VIN(P-P) = 7.5V
(150% OF FULL SCALE)
Figure 38. Measured Input Normal Mode Rejection vs
Input Frequency with Input Perturbation of 150% Full
Scale (50Hz Notch)
INPUT FREQUENCY (Hz)
0
NORMAL
MODE
REJECTION
(dB)
2480 F38
0
–20
–40
–60
–80
–100
–120
VCC = 5V
VREF = 5V
VIN(CM) = 2.5V
TA = 25°C
VIN(P-P) = 5V
VIN(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
Figure 39. Input Normal Mode Rejection 2x Speed Mode
Figure 40. Input Normal Mode Rejection 2x Speed Mode
Figure 41. Input Normal Mode Rejection vs Input Frequency,
2x Speed Mode and 50Hz/60Hz Mode
Figure 42. Input Normal Mode Rejection 2x Speed Mode
INPUT SIGNAL FREQUENCY (fN)
INPUT
NORMAL
REJECTION
(dB)
2480 F39
0
–20
–40
–60
–80
–100
–120
0
fN
2fN 3fN 4fN 5fN
6fN 7fN
8fN
INPUT SIGNAL FREQUENCY (fN)
INPUT
NORMAL
REJECTION
(dB)
2480 F48
0
–20
–40
–60
–80
–100
–120
250
248
252 254 256 258 260 262 264
INPUT FREQUENCY (Hz)
0
NORMAL
MODE
REJECTION
(dB)
50
100 125
225
2480 F41
25
75
150 175 200
0
–20
–40
–60
–80
–100
–120
VCC = 5V
VREF = 5V
VINCM = 2.5V
VIN(P-P) = 5V
FO = GND
TA = 25°C
MEASURED DATA
CALCULATED DATA
DIFFERENTIAL INPUT SIGNAL FREQUENCY (Hz)
48
–70
–80
–90
–100
–110
–120
–130
–140
54
58
2480 F42
50
52
56
60
62
NORMAL
MODE
REJECTION
(dB)
NO AVERAGE
WITH
RUNNING
AVERAGE
mode. Typical measured values of the normal mode
rejection of the LTC2480 operating with the internal oscil-
lator and 2x speed mode is shown in Figure 41.
When the LTC2480 is configured in 2x speed mode, by
performing a running average, a SINC1 notch is combined
with the SINC4 digital filter, yielding the normal mode
相關PDF資料
PDF描述
LTC2480CMS#TR 1-CH 16-BIT DELTA-SIGMA ADC, SERIAL ACCESS, PDSO10
LTC2480HDD#TRPBF 1-CH 16-BIT DELTA-SIGMA ADC, SERIAL ACCESS, PDSO10
LTC2480HDD#PBF 1-CH 16-BIT DELTA-SIGMA ADC, SERIAL ACCESS, PDSO10
LTC2480HMS#TRPBF 1-CH 16-BIT DELTA-SIGMA ADC, SERIAL ACCESS, PDSO10
LTC2480HMS#PBF 1-CH 16-BIT DELTA-SIGMA ADC, SERIAL ACCESS, PDSO10
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