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參數(shù)資料
| 型號： | MAX1450CAP |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 模擬信號調(diào)理 |
| 英文描述： | Low-Cost, 1%-Accurate Signal Conditioner for Piezoresistive Sensors |
| 中文描述： | SPECIALTY ANALOG CIRCUIT, PDSO20 |
| 封裝： | 5.30 X 0.65 MM, SSOP-20 |
| 文件頁數(shù)： | 3/12頁 |
| 文件大?。?/td> | 98K |
| 代理商： | MAX1450CAP |
M
Low-Cost, 1%-Ac c urate S ignal Conditioner
for Piezoresistive S ensors
_______________________________________________________________________________________
3
ELECTRICAL CHARACTERISTICS (continued)
(V
DD
= +5V, V
SS
= 0, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25°C.)
Note 1:
Contact factory for high-volume applications requiring less than 1.5mA.
Note 2:
All electronics temperature errors are compensated together with the sensor errors.
Note 3:
The sensor and the MAX1450 must always be at the same temperature during calibration and use.
Note 4:
This is the maximum allowable sensor offset at minimum gain (39V/V).
Note 5:
This is the sensor’s sensitivity normalized to its drive voltage, assuming a desired full-span output (FSO) of 4V and a bridge
voltage of 2.5V. Operating at lower bridge excitation voltages can accommodate higher sensitivities.
V
BDRIVE
= 2.5V
No load
(V
BDRIVE
- V
BBUF
) at V
BDRIVE
= 2.5V, no load
CONDITIONS
μA
-100
100
Current Drive
V
V
SS +
1.3
V
DD -
1.3
Voltage Swing
mV
-20
20
V
OFS
Offset Voltage
UNITS
MIN
TYP
MAX
SYMBOL
PARAMETER
I
BDRIVE/
I
ISRC
(Figure 2)
V
V
SS +
1.3
V
DD -
1.3
V
BDRIVE
Bridge Voltage Swing
mA
0.1
0.5
2.0
I
BDRIVE
Bridge Current Range
μA/μA
13
AA
Current-Source Gain
V
V
SS +
1.3
V
DD-
1.3
V
ISRC
Current-Source Input Voltage
Range
BUFFER (BBUF)
CURRENT SOURCE
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