TMPSNSRD-TCPL1 Microchip Technology, TMPSNSRD-TCPL1 Datasheet - Page 2

• Manufacturer Part Number: TMPSNSRD-TCPL1
• Description: BOARD RTD REFERENCE DESIGN
• Manufacturer: Microchip Technology

Specifications of TMPSNSRD-TCPL1

• Sensor Type: Temperature, Thermocouple
• Embedded: No
• Utilized Ic / Part: MCP3421, MCP9804
• Processor To Be Evaluated: MCP9804, MCP3421
• Interface Type: USB
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Voltage - Supply: -
• Interface: -
• Sensitivity: -
• Sensing Range: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Typical sensor applications involve the monitoring of sensor
parameters and controlling of actuators. The sensor signal
chain, as shown below, consists of analog and digital
domains. Typical sensors output very low amplitude analog
signals. These weak analog signals are amplifi ed and fi ltered,
and converted to digital using op amps, an analog-to-digital
or voltage-to-frequency converter, and is processed at the
MCU. The analog sensor output typically needs proper signal
conditioning before it gets converted to a digital signal.
Typical Sensor Signal Chain Control Loop
2
Signal Chain Overview
Signal Chain Design Guide
Relays, Switches,
Speakers, Horns,
Motors, Valves,
Actuators
Sensors
LEDs
Reference
Voltage
Amp
Op
(MOSFET)
Op Amp
Driver
MUX
Analog Domain
Potentiometer
Digital
Filter
The MCU controls the actuators and maintains the operation
of the sensor signal conditioning circuits based on the
condition of the signal detection. For the digital to analog
feedback path, the digital-to-analog converter (DAC), digital
potentiometer and Pulse-Width-Modulator (PWM) devices are
most commonly used. The MOSFET driver is commonly used
for the interface between the feedback circuit and actuators
such as motors and valves. Microchip offers a large portfolio
of devices for signal chain applications.
ADC/
V-to-Freq
DAC/PWM
Digital Domain
PIC
or dsPIC
(LCD, LED)
Indicator
DSC
®
MCU
®