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参数资料
| 型号： | DC746A |
| 厂商： | Linear Technology |
| 文件页数： | 22/36页 |
| 文件大小： | 0K |
| 描述： | BOARD DELTA SIGMA ADC LTC2412 |
| 软件下载： | QuikEval System |
| 设计资源： | DC746A Design File DC746A Schematic |
| 标准包装： | 1 |
| 系列： | QuikEval™ |
| ADC 的数量： | 1 |
| 位数： | 24 |
| 采样率（每秒）： | 7.5 |
| 数据接口： | MICROWIRE?，串行，SPI? |
| 工作温度： | 0°C ~ 70°C |
| 已用 IC / 零件： | LTC2412 |
| 已供物品： | 板 |
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LTC2412
29
2412f
APPLICATIO S I FOR ATIO
WU
U
Figure 23. Offset Error vs Output Data Rate and Temperature
Figure 24. +FS Error vs Output Data Rate and Temperature
Figure 25. –FS Error vs Output Data Rate and Temperature
Figure 26. Resolution (NoiseRMS ≤ 1LSB)
vs Output Data Rate and Temperature
Figure 27. Resolution (INLMAX ≤ 1LSB)
vs Output Data Rate and Temperature
Figure 28. Offset Error vs Output
Data Rate and Reference Voltage
OUTPUT DATA RATE (READINGS/SEC)
0
102030405060708090 100
OFFSET
ERROR
(ppm
OF
V
REF
)
2412 F23
500
450
400
350
300
250
200
150
100
50
0
TA = 85°C
VCC = 5V
REF+ = 5V
REF – = GND
VINCM = 2.5V
VIN = 0V
FO = EXTERNAL OSCILLATOR
TA = 25°C
OUTPUT DATA RATE (READINGS/SEC)
0
102030405060708090 100
+FS
ERROR
(ppm
OF
V
REF
)
2412 F24
7000
6000
5000
4000
3000
2000
1000
0
TA = 85°C
VCC = 5V
REF+ = 5V
REF – = GND
IN+ = 3.75V
IN – = 1.25V
FO = EXTERNAL OSCILLATOR
TA = 25°C
OUTPUT DATA RATE (READINGS/SEC)
0
102030405060708090 100
–FS
ERROR
(ppm
OF
V
REF
)
2412 F25
0
–1000
–2000
–3000
–4000
–5000
–6000
–7000
TA = 85°C
VCC = 5V
REF+ = 5V
REF – = GND
IN+ = 1.25V
IN – = 3.75V
FO = EXTERNAL OSCILLATOR
TA = 25°C
OUTPUT DATA RATE (READINGS/SEC)
0
102030405060708090 100
RESOLUTION
(BITS)
2412 F26
24
23
22
21
20
19
18
17
16
15
14
13
12
TA = 85°C
VCC = 5V
REF+ = 5V
REF – = GND
VINCM = 2.5V
VIN = 0V
FO = EXTERNAL OSCILLATOR
RESOLUTION = LOG2(VREF/NOISERMS)
TA = 25°C
OUTPUT DATA RATE (READINGS/SEC)
0
102030405060708090 100
RESOLUTION
(BITS)
2412 F27
22
20
18
16
14
12
10
8
TA = 85°C
VCC = 5V
REF+ = 5V
REF – = GND
VINCM = 2.5V
–2.5V < VIN < 2.5V
FO = EXTERNAL OSCILLATOR
RESOLUTION = LOG2(VREF/INLMAX)
TA = 25°C
OUTPUT DATA RATE (READINGS/SEC)
0
102030405060708090 100
OFFSET
ERROR
(ppm
OF
V
REF
)
2412 F28
250
225
200
175
150
125
100
75
50
25
0
VREF = 5V
VCC = 5V
REF+ = GND
VINCM = 2.5V
VIN = 0V
FO = EXTERNAL OSCILLATOR
TA = 25°C
VREF = 2.5V
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