Low cost high precision automatic shift proportion amp circuit

Published:2011/6/7 3:37:00 Author:Fiona | Keyword: Low cost high precision, automatic shift proportion amp | From:SeekIC

In addition to R5, the other resistance is best to be carefully selected, has the same parameters,2 20K precision resistor in series can be instead of R4.It can increase the control gain range to increase the number of CD4066 and R7. Remove the comparator, It can directly control gain by the MCU. The circuit can be widely used in expansion A / D accuracy, detection range extension and so on.



Reprinted Url Of This Article:
http://www.seekic.com/circuit_diagram/Amplifier_Circuit/Low_cost_high_precision_automatic_shift_proportion_amp_circuit.html

Print this Page | Comments | Reading(3)