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参数资料
| 型号： | DC746A |
| 厂商： | Linear Technology |
| 文件页数： | 33/36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
6
2412f
TYPICAL PERFOR A CE CHARACTERISTICS
UW
Total Unadjusted Error vs
Temperature (VCC = 2.7V,
VREF = 2.5V)
Total Unadjusted Error vs
Temperature (VCC = 5V,
VREF = 2.5V)
Total Unadjusted Error vs
Temperature (VCC = 5V,
VREF = 5V)
Integral Nonlinearity vs
Temperature (VCC = 2.7V,
VREF = 2.5V)
Integral Nonlinearity vs
Temperature (VCC = 5V,
VREF = 2.5V)
Integral Nonlinearity vs
Temperature (VCC = 5V,
VREF = 5V)
Noise Histogram (Output Rate =
52.5Hz, VCC = 5V, VREF = 5V)
Noise Histogram (Output Rate =
22.5Hz, VCC = 5V, VREF = 5V)
Noise Histogram (Output Rate =
7.5Hz, VCC = 5V, VREF = 5V)
VIN (V)
–2.5 –2 –1.5 –1 –0.5 0
0.5
1
1.5
2
2.5
TUE
(ppm
OF
V
REF
)
2412 G01
1.5
1.0
0.5
0
–0.5
–1.0
–1.5
VCC = 5V
REF + = 5V
REF – = GND
VREF = 5V
VINCM = 2.5V
FO = GND
TA = 90°C
TA = 25°C
TA = –45°C
VIN (V)
–1
–0.5
0
0.5
1
TUE
(ppm
OF
V
REF
)
2412 G02
1.5
1.0
0.5
0
–0.5
–1.0
–1.5
VCC = 5V
REF + = 2.5V
REF – = GND
VREF = 2.5V
VINCM = 1.25V
FO = GND
TA = 90°C
TA = 25°C
TA = –45°C
VIN (V)
–1
–0.5
0
0.5
1
TUE
(ppm
OF
V
REF
)
2412 G03
10
8
6
4
2
0
–2
–4
–6
–8
–10
VCC = 2.7V
REF + = 2.5V
REF – = GND
VREF = 2.5V
VINCM = 1.25V
FO = GND
TA = 90°C
TA = 25°C
TA = –45°C
VIN (V)
–2.5 –2 –1.5 –1 –0.5 0
0.5
1
1.5
2
2.5
INL
ERROR
(ppm
OF
V
REF
)
2412 G04
1.5
1.0
0.5
0
–0.5
–1.0
–1.5
VCC = 5V
REF + = 5V
REF – = GND
VREF = 5V
VINCM = 2.5V
FO = GND
TA = –45°C
TA = 25°C
TA = 90°C
VIN (V)
–1
–0.5
0
0.5
1
INL
ERROR
(ppm
OF
V
REF
)
2412 G05
1.5
1.0
0.5
0
–0.5
–1.0
–1.5
VCC = 5V
REF + = 2.5V
REF – = GND
VREF = 2.5V
VINCM = 1.25V
FO = GND
TA = 25°C
TA = –45°C
TA = 90°C
VIN (V)
–1
–0.5
0
0.5
1
INL
ERROR
(ppm
OF
V
REF
)
2412 G06
10
8
6
4
2
0
–2
–4
–6
–8
–10
VREF = 2.5V
VINCM = 1.25V
FO = GND
VCC = 2.7V
REF + = 2.5V
REF – = GND
TA = 25°C
TA = –45°C
TA = 90°C
OUTPUT CODE (ppm OF VREF)
–0.8 –0.6 –0.4 –0.2
0
0.2
0.4
0.6
0.8
NUMBER
OF
READINGS
(%)
2412 G07
12
10
8
6
4
2
0
10,000 CONSECUTIVE
READINGS
VCC = 5V
VREF = 5V
VIN = 0V
REF + = 5V
REF – = GND
IN+ = 2.5V
IN– = 2.5V
FO = GND
TA = 25°C
GAUSSIAN
DISTRIBUTION
m = 0.105ppm
σ = 0.153ppm
OUTPUT CODE (ppm OF VREF)
–0.8 –0.6 –0.4 –0.2
0
0.2
0.4
0.6
0.8
NUMBER
OF
READINGS
(%)
2412 G08
12
10
8
6
4
2
0
10,000 CONSECUTIVE
READINGS
VCC = 5V
VREF = 5V
VIN = 0V
REF + = 5V
REF – = GND
IN+ = 2.5V
IN– = 2.5V
FO = 460800Hz
TA = 25°C
GAUSSIAN
DISTRIBUTION
m = 0.067ppm
σ = 0.151ppm
OUTPUT CODE (ppm OF VREF)
–9.8 –9.4 –9 –8.6 –8.2 –7.8 –7.4 –7 –6.6
NUMBER
OF
READINGS
(%)
2412 G09
12
10
8
6
4
2
0
10,000 CONSECUTIVE
READINGS
VCC = 5V
VREF = 5V
VIN = 0V
REF + = 5V
REF – = GND
IN+ = 2.5V
IN– = 2.5V
FO = 1075200Hz
TA = 25°C
GAUSSIAN
DISTRIBUTION
m = 8.285ppm
σ = 0.311ppm
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