參數(shù)資料
型號: MLX90308CABL
廠商: Electronic Theatre Controls, Inc.
英文描述: Programmable Sensor Interface
中文描述: 可編程傳感器接口
文件頁數(shù): 24/26頁
文件大?。?/td> 537K
代理商: MLX90308CABL
MLX90308CAB
Programmable Sensor Interface
MLX90308CAB Programmable Sensor Interface Page 24 Rev 3.0 21/May/01
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IO1
IO2
TSTB
FLT
OFC
VBN
VBP
TMP
COMS
GND
CMN
CMO
VMO
VDD1
FET
VDD
M
G
S
D
External FET
for Regulation
Pressure
Sensor
P(psi)
Communication
s
GND
Signal Out
V
+
Programmable Oil Pressure Gauge
This application example illustrates a fundamental
application of the MLX90308 and a bridge type
pressure sensor element. In this application, the
MLX90308 uses an external FET as a pass transistor
to regulate the voltage to the sensor and the analog
portion of the IC. This is known as Absolute Voltage Mode,
where voltage to the sensor and analog circuit is regulated
independent of the supply voltage. The MLX90308 can be operated in
Ratiometric Voltage Mode, in which the output (VMO) is tied to an A/D
converter sharing the same supply and ground reference. A third wiring
option is Current Mode, which allows the user a 4 to 20 milliampere current range to
use as a 2-wire analog sensor.
Communications
Signal Out
GND
V+
Figure 10. Application Example
Figure 10a. Programmable Oil Pressure Gauge
Figure 10b. Programmable Oil Pressure Gauge Electrical Connections
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