參數(shù)資料
型號(hào): MAX1459CAP+
廠商: MAXIM INTEGRATED PRODUCTS INC
元件分類: 模擬信號(hào)調(diào)理
英文描述: 2-Wire, 4-20mA Smart Signal Conditioner
中文描述: SPECIALTY ANALOG CIRCUIT, PDSO20
封裝: 5.30 MM, 0.65 MM PITCH, SSOP-20
文件頁數(shù): 19/24頁
文件大?。?/td> 243K
代理商: MAX1459CAP+
MAX1459
2-Wire, 4–20mA
Smart Signal Conditioner
4
_______________________________________________________________________________________
__________________________________________Typical Operating Characteristics
(VDD = +5V, VSS = 0, TA = +25°C, unless otherwise noted.)
0
0.5
1.0
1.5
2.0
2.5
-40
40
60
020
-20
80
100 120
SUPPLY CURRENT vs. TEMPERATURE
MAX1459
toc01
TEMPERATURE (°C)
SUPPLY
CURRENT
(mA)
VOUT = 2.47V AT +25°C
-40
40
60
020
-20
80
100 120
RTEMP vs. TEMPERATURE
MAX1459
toc02
TEMPERATURE (°C)
R
TEMP
(
)
0
60
40
20
80
100
120
140
160
180
200
-40
40
60
020
-20
80
100 120
VOUT vs. TEMPERATURE
MAX1459
toc03
TEMPERATURE (°C)
V
OUT
(V)
0
1.5
1.0
0.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
VOUT = 2.5V AT +25°C
VIN = 56.5mV
VOUT = 2.47V AT +25°C
VIN = 0
Note 1: Excludes the sensor or load current.
Note 2: All electronics temperature errors are compensated together with sensor errors.
Note 3: The sensor and the MAX1459 must always be at the same temperature during calibration and use.
Note 4: This is the maximum allowable sensor offset.
Note 5: This is the sensor’s sensitivity normalized to its drive voltage, assuming a desired full-span output of 4V and a bridge
voltage of 2.5V. Sensors smaller than +10mV/V require an auxiliary op amp.
Note 6: Bit weight is ratiometric to VDD.
ELECTRICAL CHARACTERISTICS (continued)
(VDD = +5V, VSS = 0, TA = +25°C, unless otherwise noted.)
ISINK = 2mA
V
0.5
VOL
Low-Level Output Voltage
ISOURCE = 1mA
V
4
VOH
High-Level Output Voltage
V
2
Input Hysteresis
V
0.25 x VDD
VIL
Low-Level Input Voltage
V
0.75 x VDD
VIH
High-Level Input Voltage
CONDITIONS
UNITS
MIN
TYP
MAX
SYMBOL
PARAMETER
DIGITAL PINS
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