參數(shù)資料
型號(hào): LTC2413
廠商: Linear Technology Corporation
元件分類: ADC
英文描述: 2.7V to 5.5V Simultaneous 50Hz/60Hz Rejection Micropower Differential Σ△ Analog to Digital Converter(2.7V ~5.5V,微功耗,24位差分Σ△串行模數(shù)轉(zhuǎn)換器)
中文描述: 2.7V至5.5V同步50Hz/60Hz抑制微差分Σ△模數(shù)轉(zhuǎn)換器(2.7?5.5V的,微功耗,24位差分Σ△串行模數(shù)轉(zhuǎn)換器)
文件頁數(shù): 26/40頁
文件大?。?/td> 373K
代理商: LTC2413
LTC2413
26
APPLICATIU
W
U
U
Third, an increase in the frequency of the external oscilla-
tor above 460800Hz (a more than 3
×
increase in the output
data rate) will start to decrease the effectiveness of the
internal autocalibration circuits. This will result in a pro-
gressive degradation in the converter accuracy and linear-
ity. Typical measured performance curves for output data
rates up to 100 readings per second are shown in Fig-
Figure 28. Offset Error vs Output Data Rate and Temperature
Figure 29. +FS Error vs Output Data Rate and Temperature
Figure 30. –FS Error vs Output Data Rate and Temperature
OUTPUT DATA RATE (READINGS/SEC)
0
10 20 30 40 50 60 70 80 90 100
O
R
)
2413 F28
500
450
400
350
300
250
200
150
100
50
0
T
A
= 85
°
C
V
= 5V
REF
+
= 5V
REF
= GND
V
INCM
= 2.5V
V
IN
F
O
= EXTERNAL OSCILLATOR
T
A
= 25
°
C
OUTPUT DATA RATE (READINGS/SEC)
0
10 20 30 40 50 60 70 80 90 100
+
R
)
2413 F29
7000
6000
5000
4000
3000
2000
1000
0
T
A
= 85
°
C
V
= 5V
REF
= 5V
REF
= GND
IN
+
= 3.75V
IN
= 1.25V
F
O
= EXTERNAL OSCILLATOR
T
A
= 25
°
C
OUTPUT DATA RATE (READINGS/SEC)
0
10 20 30 40 50 60 70 80 90 100
R
)
2413 F30
0
–1000
–2000
–3000
–4000
–5000
–6000
–7000
T
A
= 85
°
C
V
CC
= 5V
REF
+
= 5V
REF
= GND
IN
+
= 1.25V
IN
= 3.75V
F
O
= EXTERNAL OSCILLATOR
T
A
= 25
°
C
ures28, 29, 30, 31, 32, 33, 34 and 35. In order to obtain
the highest possible level of accuracy from this converter
at output data rates above 20 readings per second, the
user is advised to maximize the power supply voltage used
and to limit the maximum ambient operating temperature.
In certain circumstances, a reduction of the differential
reference voltage may be beneficial.
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