TMPSNSRD-RTD2 Microchip Technology, TMPSNSRD-RTD2 Datasheet - Page 20

• Manufacturer Part Number: TMPSNSRD-RTD2
• Description: BOARD RTD REFERENCE DESIGN
• Manufacturer: Microchip Technology

Specifications of TMPSNSRD-RTD2

• Sensor Type: Temperature
• Interface: USB
• Embedded: No
• Utilized Ic / Part: MCP3551, MCP9804
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Voltage - Supply: -
• Sensitivity: -
• Sensing Range: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

The following literature is available on the Microchip web
site: www.microchip.com/appnotes. There are additional
application notes that may be useful.
Sensor Conditioning Circuits Overview
AN866: Designing Operational Amplifier Oscillator Circuits
Operational amplifier (op amp) oscillators can be used
to accurately measure resistive and capacitive sensors.
Oscillator design can be simplified by using the procedure
discussed in this application note. The derivation of the
design equations provides a method to select the passive
components and determine the influence of each component
on the frequency of oscillation. The procedure will be
demonstrated by analyzing two state-variable RC op-amp
oscillator circuits.
AN895: Oscillator Circuits for RTD Temperature Sensors
This application note shows how to design a temperature
sensor oscillator circuit using Microchip’s low-cost
MCP6001 operational amplifier (op amp) and the MCP6541
comparator. Oscillator circuits can be used to provide
an accurate temperature measurement with a Resistive
Temperature Detector (RTD) sensor. Oscillators provide a
frequency output that is proportional to temperature and are
easily integrated into a microcontroller system.
AN990: Analog Sensor Conditioning Circuits – An Overview
Analog sensors produce a change in an electrical property
to indicate a change in its environment. this change in
electrical property needs to be conditioned by an analog
circuit before conversion to digital. Further processing occurs
in the digital domain but is not addressed in this application
note.
Delta-Sigma ADCs
AN1007: Designing with the MCP3551 Delta-Sigma ADC
The MCP3551 delta-sigma ADC is a high-resolution
converter. This application note discusses various design
techniques to follow when using this device. Typical
application circuits are discussed first, followed by a section
on noise analysis.
AN1030: Weigh Scale Applications for the MCP3551
This application note focusses specifically on load cells,
a type of strain gauge that is typically used for measuring
weight. Even more specifically, the focus is on fully active,
temperature compensated load cells whose change in
differential output voltage with a rated load is 2 mV to
4 mV per volt of excitation (the excitation voltage being the
difference between the +Input and the –Input terminals of
the load cell).
AN1156: Battery Fuel Measurement Using Delta-Sigma
This application note reviews the battery fuel measurement
using the MCU and ADC devices. Developing battery fuel
measurement in this manner provides flexible solutions and
enables economic management.
DS21841: Analog-to-Digital Converter Design Guide
20
Related Support Material
Signal Chain Design Guide
For Sensor Applications
ADC Devices
SAR ADCs
AN246: Driving the Analog Inputs of a SAR A/D Converter
This application note delves into the issues surrounding the
SAR converter’s input and conversion nuances to insure that
the converter is handled properly from the beginning of the
design phase.
AN688: Layout Tips for 12-Bit A/D Converter Application
This application note provides basic 12-bit layout guidelines,
ending with a review of issues to be aware of. Examples of
good layout and bad layout implementations are presented
throughout.
AN693: Understanding A/D Converter Performance
This application note describes the specifications used to
quantify the performance of A/D converters and give the
reader a better understanding of the significance of those
specifications in an application.
AN842: Differential ADC Biasing Techniques, Tips and
True differential converters can offer many advantages over
single-ended input A/D Converters (ADC). In addition to their
common mode rejection ability, these converters can also be
used to overcome many DC biasing limitations of common
signal conditioning circuits.
AN845: Communicating With The MCP3221 Using
This application note will cover communications between the
MCP3221 12-bit A/D Converter and a PIC microcontroller.
The code supplied with this application note is written as
relocatable assembly code.
Passive Keyless Entry (PKE)
TB090: MCP2030 Three-Channel Analog Front-End Device
This tech brief summarizes the technical features of the
MCP2030 and describes how the three channel stand-alone
analog front-end device can be used for various bidirectional
communication applications.
AN1024: PKE System Design Using the PIC16F639
This application note described how to make hands-free
reliable passive keyless entry applications using the
PIC16F639 – a dual die solution device that includes both
MCP2030 and PIC16F636.
Utility Metering
Refer to DS01008: Utility Metering Solutions
Specifications
Tricks
PIC Microcontrollers
Overview