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AN796
| Title |
Title
TC7109 Records Remote Data Automatically
|
|---|---|
| Name |
Name
AN796
|
| Date |
Date
06/24/2015
|
| Product Categories |
Product Categories
Mixed Signal /
A D Converters Dual Slope
|
| Description |
Description
A Microchip Technology analog-to-digital converter, a 2K-byte CMOS static RAM, and some gates and counters can be combined to form a low-cost, flexible, standalone data logging system. All the ICs are CMOS and the clock frequency is low, so power supply current is only a couple of milliamperes. The unit will store a 13-bit conversion (12-bit plus sign) in two consecutive bytes of memory, with a programmable time interval between measurements. The circuit is useful for logging temperature or other process control variables in remote locations or hostile environments. It is also useful in the lab for making unattended, repetitive measurements of long-term drift, component aging, etc.
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