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AN865
| Title |
Title
Sensing Light with a Programmable Gain Amplifier
|
|---|---|
| Name |
Name
AN865
|
| Date |
Date
06/24/2015
|
| Product Categories |
Product Categories
Linear Devices /
Programmable Gain Amplifiers (PGA)
|
| Description |
Description
Photo sensors bridge the gap between light and electronics. Microchip’s Programmable Gain Amplifiers (PGAs) are not well suited for precision applications (such as CT scanners), but they can be effectively used in position photo sensing applications minus the headaches of amplifier stability. When the two, six or eightchannel PGA is used in this system, the other channels can be used for other sensors or an array of photo 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 the photo sensor input signal to be sampled and quickly converted to the digital domain. Switching from channel-to-channel is then easier with the Serial Peripheral Interface (SPI™) from the PICmicro microcontroller to the PGA.
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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 |