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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)： | 2/24頁 |
| 文件大?。?/td> | 243K |
| 代理商： | MAX1459 |
M
2-Wire, 4–20mA
Smart Signal Conditioner
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
Supply Voltage, V
DD
to V
SS
......................................-0.3V to +6V
All Other Pins ...................................(V
SS
- 0.3V) to (V
DD
+ 0.3V)
Short-Circuit Duration, FSOTC, OUT, BDRIVE...........Continuous
Continuous Power Dissipation (T
A
= +70°C)
20-Pin SSOP (derate 8.00mW/°C above +70°C) ..........640mW
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.
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
(V
DD
= +5V, V
SS
= 0, T
A
= +25°C, unless otherwise noted.)
PARAMETER
SYMBOL
MIN
TYP
MAX
UNITS
Amplifier Gain Nonlinearity
Output Step Response
Common-Mode Rejection Ratio
0.01
2
90
%V
DD
ms
dB
Input-Referred Offset Tempco
±0.5
μV/°C
Input Impedance
R
IN
1
M
CMRR
Input-Referred Adjustable Offset
Range
±150
mV
Supply Voltage
Supply Current
ANALOG INPUT
(PGA)
V
DD
I
DD
4.5
5.0
2.0
5.5
2.5
V
mA
Input-Referred Adjustable Full-
Span Output (FSO) Range
+1 to +40
mV/V
Differential Signal Gain Range
Minimum Differential Signal Gain
Differential Signal Gain Tempco
+41 to +230
+41
±50
V/V
V/V
+36
+44
ppm/°C
Output Current Range
-0.45
(sink)
0.45
(source)
mA
Output Noise
500
μV
RMS
CONDITIONS
(Note 5)
(Notes 2, 3)
63% of final value
From V
SS
to V
DD
Selectable in eight steps
T
A
= T
MIN
to T
MAX
T
A
= T
MIN
to T
MAX
No load
10k
load
At minimum gain (Note 4)
V
OUT
= (V
SS
+ 0.25V) to (V
DD
- 0.25V)
DC to 10Hz (gain = 41,
source impedance = 5k
)
R
NBIAS
= 402k
, V
DD
= 5.0V (Note 1)
Output Voltage Swing
V
SS
+ 0.05
V
SS
+ 0.25
V
DD
- 0.05
V
DD
- 0.25
V
GENERAL CHARACTERISTICS
ANALOG OUTPUT
(PGA)
Bridge Current Range
Bridge Voltage Swing
I
BDRIVE
V
BDRIVE
0.1
0.5
2.0
mA
V
V
SS
+ 1.3
V
DD
- 1.3
I
BDRIVE
= 2mA
Reference Input Voltage Range
(ISRC)
V
ISRC
V
SS
+ 1.3
V
DD
- 1.3
V
CURRENT SOURCE
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