The differential amplifier with low-pass filtering circuit composed of the OPA2604

Published:2011/8/11 2:31:00 Author:Rebekka | Keyword: differential amplifier , low-pass filtering | From:SeekIC

The figure shows a low pass filtering differential amplifier circuit. This circuit has the 100 Hz ac low pass filtering, differential input, single-end outputand high fidelity. The OPA2604 amplifier circuit is the mosfet inputdual op-amp integrated circuit. The OPA2604 is connected into two voltage follower. It is shown in figure A1, A2. Because OPA2604 has a very high input impedance (1012 Ω / / 8 pF) and a very low offset current (50 pA), therefore it can ensure the circuit has good filtering effect. The OPA604 is single op-amp and OPA2604 is double op-amp. Both characteristics are completely the same.



Reprinted Url Of This Article:
http://www.seekic.com/circuit_diagram/Amplifier_Circuit/The_differential_amplifier_with_low_pass_filtering_circuit_composed_of_the_OPA2604.html

Print this Page | Comments | Reading(3)