MAX1231(2003) 查看數據表（PDF） - Maxim Integrated
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MAX1231 Datasheet PDF : 24 Pages
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12-Bit 300ksps ADCs with FIFO,
Temp Sensor, Internal Reference
Typical Operating Characteristics (continued)
(VDD = +3V, VREF = +2.5V, fSCLK = 4.8MHz, CLOAD = 30pF, TA = +25°C, unless otherwise noted.)
INTERNAL REFERENCE VOLTAGE
vs. TEMPERATURE
2.510
OFFSET ERROR
vs. SUPPLY VOLTAGE
0.3
OFFSET ERROR
vs. TEMPERATURE
0.4
2.506
0.2
0.3
0.2
0.1
2.502
0.1
0
2.498
0
-0.1
-0.1
2.494
-0.2
-0.2
2.490
-40
-15
10
35
60
85
TEMPERATURE (°C)
-0.3
2.7
3.0
3.3
SUPPLY VOLTAGE (V)
-0.3
3.6
-40 -15
10
35
60
85
TEMPERATURE (°C)
GAIN ERROR vs. SUPPLY VOLTAGE
2.0
GAIN ERROR vs. TEMPERATURE
2.0
1.5
1.5
1.0
1.0
0.5
0.5
0
2.7
3.0
3.3
3.6
SUPPLY VOLTAGE (V)
TEMPERATURE SENSOR ERROR
vs. TEMPERATURE
1.00
0.75
0.50
GRADE A
0.25
0
-0.25
-0.50
GRADE B
-0.75
-1.00
-40 -15
10
35
60
85
TEMPERATURE (°C)
0
-40 -15
10
35
60
85
TEMPERATURE (°C)
SAMPLING ERROR
vs. SOURCE IMPEDANCE
1
0
-1
-2
-3
-4
-5
0
2
4
6
8
10
SOURCE IMPEDANCE (kΩ)
_______________________________________________________________________________________ 7
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