A-M Systems 3000 Manuale di istruzioni - Pagina 12

Sfoglia online o scarica il pdf Manuale di istruzioni per Amplificatore A-M Systems 3000. A-M Systems 3000 18. Ac/dc differential amplifier

Overview

The Model 3000 is a high gain differential AC/DC amplifier. The first stage in the

amplifier (with either the head stage option or non head stage version) consists of a

high input impedance differentially coupled x50 amplifier. The signal from this amplifier

is coupled through positive feedback with a capacitor to form capacity compensation.

The capacity compensated signal is offset adjustable through a precision variable

voltage reference.

The signal from the initial stage then passes through High pass (if activated), Notch (if

activated), and Low pass filters. Finally the signal passes through a gain stage of up

to 200 times. The gain stage is monitored for saturation.

Operational Modes

Block Diagram

Probe

100

A-M Systems

Theory of Operation

x50

Differential

High Pass

Stage

Filter

U11

131 Business Park Loop, P.O. Box 850 Carlsborg, WA 98324

Telephone: 800-426-1306 * 360-683-8300 * FAX: 360-683-3525

E-mail: [email protected] * Website:

Ω

Stim or

test

Notch

Low Pass

Filter

http://www.a-msystems.com

x1, x2,

x10,

x20,

x100,

x200

High Gain

Stage