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參數(shù)資料
| 型號： | MAX1459 |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | 2-Wire, 4-20mA Smart Signal Conditioner |
| 中文描述： | 2線、4-20mA智能信號調(diào)理器 |
| 文件頁數(shù)： | 3/24頁 |
| 文件大小： | 243K |
| 代理商： | MAX1459 |
ELECTRICAL CHARACTERISTICS (continued)
(V
DD
= +5V, V
SS
= 0, T
A
= +25°C, unless otherwise noted.)
PARAMETER
DIGITAL-TO-ANALOG CONVERTERS
M
2-Wire, 4–20mA
Smart Signal Conditioner
_______________________________________________________________________________________
3
FSO DAC Bit Weight
V
ISRC
Code
1.22
mV/bit
FSOTC DAC Bit Weight
V
FSOT
Code
0.6
mV/bit
DAC reference = V
DD
= 5.0V
DAC reference = V
BDRIVE
= 2.5V
Offset DAC Bit Weight
V
OUT
Code
2.8
mV/bit
Offset TC DAC Bit Weight
V
OUT
Code
1.4
mV/bit
DAC reference = V
DD
= 5.0V
DAC reference = V
BDRIVE
= 2.5V
DAC Resolution
Differential Nonlinearity
12
±1.5
Bits
LSB
DNL
SYMBOL
MIN
TYP
MAX
UNITS
DAC Bit Weight
FSOTC BUFFER
(FSOTC Pin)
9
mV/bit
DAC Resolution
3
Bits
Output Voltage Swing
Current Drive
INTERNAL RESISTORS
0.2
-20
4.0
20
V
μA
Current Source Reference
Resistor
FSO Trim Resistor
Temperature-Dependent
Resistor
R
ISRC
100
k
R
FTC
100
k
R
TEMP
100
k
CONDITIONS
Input referred, V
DD
= 5V (Note 6)
No load, V
B
= 5V
V
FSOTC
= 2.5V
Input Common-Mode Range
Open-Loop Gain
Offset Voltage (as unity-gain
follower)
Output Swing
Output Current
CMR
A
V
V
SS
V
DD
V
60
dB
-30
30
mV
V
IN
= V
DD
/2
V
SS
+ 0.05
V
DD -
0.05
V
No load
±1
mA
IRO DAC
AUXILIARY OP AMP
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