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AN251
| Title |
Title
Bridge Sensing with the MCP6S2X PGAs
|
|---|---|
| Name |
Name
AN251
|
| Date |
Date
06/24/2015
|
| Product Categories |
Product Categories
Linear Devices /
Programmable Gain Amplifiers (PGA)
|
| Description |
Description
Resistive sensors configured as Wheatstone bridges are primarily used to sense pressure, temperature or loads. An external A/D converter (ADC) and a digitally Programmable Gain Amplifier (PGA) can easily be used to convert the difference voltage from these resistor bridge sensors to usable digital words for manipulation by the microcontroller. When the PGA is used in this system, the other channels of the MCP6S2X can be used for other sensors without an increase in signal conditioning hardware or PICmicro® microcontroller I/O pin consumption. The multiplexer and high-speed conversion response of the PGA/Analog-to-Digital (A/D) conversion allows a differential input signal to be sampled and converted in the analog domain and then subtracted in the digital domain with the microcontroller.
|
Silicon Products
| Title | Product | Title |
|---|---|---|
|
MCP6G01U
110 µA Selectable Gain Amplifier
|
MCP6G01U | 110 µA Selectable Gain Amplifier |
|
MCP6S93
Single-Ended, Rail-to-Rail I/O, Low-Gain PGA
|
MCP6S93 | Single-Ended, Rail-to-Rail I/O, Low-Gain PGA |
|
MCP6G04
110 µA Selectable Gain Amplifier
|
MCP6G04 | 110 µA Selectable Gain Amplifier |
|
MCP6S26
Single-Ended, Rail-to-Rail I/O, Low Gain PGA
|
MCP6S26 | Single-Ended, Rail-to-Rail I/O, Low Gain PGA |
|
MCP6S28
Single-Ended, Rail-to-Rail I/O, Low Gain PGA
|
MCP6S28 | Single-Ended, Rail-to-Rail I/O, Low Gain PGA |
|
MCP6G01R
110 µA Selectable Gain Amplifier
|
MCP6G01R | 110 µA Selectable Gain Amplifier |
|
MCP6S91
Single-Ended, Rail-to-Rail I/O, Low-Gain PGA
|
MCP6S91 | Single-Ended, Rail-to-Rail I/O, Low-Gain PGA |
|
MCP6G02
110 µA Selectable Gain Amplifier
|
MCP6G02 | 110 µA Selectable Gain Amplifier |
|
MCP6G03
110 µA Selectable Gain Amplifier
|
MCP6G03 | 110 µA Selectable Gain Amplifier |
|
MCP6G01
110 µA Selectable Gain Amplifier
|
MCP6G01 | 110 µA Selectable Gain Amplifier |
|
MCP6S92
Single-Ended, Rail-to-Rail I/O, Low-Gain PGA
|
MCP6S92 | Single-Ended, Rail-to-Rail I/O, Low-Gain PGA |
|
MCP6S21
Single-Ended, Rail-to-Rail I/O, Low Gain PGA
|
MCP6S21 | Single-Ended, Rail-to-Rail I/O, Low Gain PGA |
|
MCP6S22
Single-Ended, Rail-to-Rail I/O, Low Gain PGA
|
MCP6S22 | Single-Ended, Rail-to-Rail I/O, Low Gain PGA |