Remote Sensors
Remote Sensing
All sensors in a high noise environment should be
considered as remote sensors. Also, sensors not located
on the same PCB as the signal conditioning circuitry
are remote. Remote sensing applications typically use a
differential amplifier or an instrumentation amplifier.
Key Amplifier Features
■ ? Differential Input
■ ? Large CMR
■ ? Small V OS
Products
■ ? High Precision
– Low Offset Op Amps
– Auto-zeroed Op Amps
– Low Noise Op Amps
Sensors and Applications
■ ? High temperature sensors
– Thermocouples for stoves, engines and process control
– RTDs for ovens and process control
■ ? Wheatstone Bridges
– Pressure Sensors for automotive and industrial control
– Strain gauges for engines
■ ? Low side current monitors for motors and batteries
Differential Ampli?er
V REF
EMI
EMI
MCP6V01 Thermocouple Auto-zeroed Reference Design (MCP6V01RD-TCPL)
PC
(Thermal Management Software)
Using USB
PIC18F2550 (USB) Microcontroller
MCP6V02
MCP6V07
MCP617
V OUT
I 2 C? Port
CV REF
10-bit ADC Module
V OUT 2
3
x1
V SHIFT
2nd Order RC
Low-Pass Filter
V OUT 1
MCP1541 4.1V
Voltage Reference
SDA
SCLK
ALERT
Difference
Amplifier
V REF
Cold Junction
Compensation
MCP9800
Temp Sensor
+
Connector
Type K Thermocouple
Weld Bead
Signal Chain Design Guide
7
相关PDF资料
TSV250-130F-2 POLYSWITCH PTC RESET 0.13A SMD
TSV250-130F-B-0.5-2 POLYSWITCH PTC RESET 0.13A SMD
TURBO-DECO-XM-UT3 SITE LICENSE TURBO DECODER XP
TVB058SA-L SURGE PROTECTOR 58V DO-214AA
TVB200SA-L SURGE PROTECTOR 200V BREAKOVER
TVB200SC-L SURGE PROTECTOR 200V BREAKOVER
TVB270SB-L SURGE PROTECTOR 270V DO-214AA
TVB270SC-L SURGE PROTECTOR 270V DO-214AA
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