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参数资料
| 型号： | MAX1459AAP+T |
| 厂商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分类： | 模拟信号调理 |
| 英文描述： | 2-Wire, 4-20mA Smart Signal Conditioner |
| 中文描述： | SPECIALTY ANALOG CIRCUIT, PDSO20 |
| 封装： | 5.30 MM, 0.65 MM PITCH, SSOP-20 |
| 文件页数： | 12/24页 |
| 文件大小： | 243K |
| 代理商： | MAX1459AAP+T |
MAX1459
2-Wire, 4–20mA
Smart Signal Conditioner
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
Supply Voltage, VDD to VSS......................................-0.3V to +6V
All Other Pins ...................................(VSS - 0.3V) to (VDD + 0.3V)
Short-Circuit Duration, FSOTC, OUT, BDRIVE ...........Continuous
Continuous Power Dissipation (TA = +70°C)
20-Pin SSOP (derate 8.00mW/°C above +70°C) ..........640mW
Operating Temperature Ranges
MAX1459CAP ......................................................0°C to +70°C
MAX1459AAP .................................................-40°C to +125°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
ELECTRICAL CHARACTERISTICS
(VDD = +5V, VSS = 0, TA = +25°C, unless otherwise noted.)
PARAMETER
SYMBOL
MIN
TYP
MAX
UNITS
Amplifier Gain Nonlinearity
0.01
%VDD
Input-Referred Offset Tempco
±0.5
V/°C
Input Impedance
RIN
1
M
Output Step Response
2
ms
Common-Mode Rejection Ratio
CMRR
90
dB
Input-Referred Adjustable Offset
Range
±150
mV
Supply Voltage
VDD
4.5
5.0
5.5
V
Supply Current
IDD
2.0
2.5
mA
Input-Referred Adjustable Full-
Span Output (FSO) Range
+1 to +40
mV/V
Differential Signal Gain Range
+41 to +230
V/V
Minimum Differential Signal Gain
+36
+41
+44
V/V
Differential Signal Gain Tempco
±50
ppm/°C
Output Current Range
-0.45
0.45
(sink)
(source)
mA
Output Noise
500
VRMS
CONDITIONS
(Note 5)
(Notes 2, 3)
63% of final value
Selectable in eight steps
TA = TMIN to TMAX
From VSS to VDD
At minimum gain (Note 4)
TA = TMIN to TMAX
VOUT = (VSS + 0.25V) to (VDD - 0.25V)
DC to 10Hz (gain = 41,
source impedance = 5k
)
RNBIAS = 402k
, VDD = 5.0V (Note 1)
Output Voltage Swing
VSS + 0.05
VDD - 0.05
V
No load
VSS + 0.25
VDD - 0.25
10k
load
GENERAL CHARACTERISTICS
ANALOG INPUT (PGA)
ANALOG OUTPUT (PGA)
Bridge Current Range
IBDRIVE
0.1
0.5
2.0
mA
Bridge Voltage Swing
VBDRIVE
VSS + 1.3
VDD - 1.3
V
IBDRIVE = 2mA
Reference Input Voltage Range
(ISRC)
VISRC
VSS + 1.3
VDD - 1.3
V
CURRENT SOURCE
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