B4M1 DIP8 ±20 dB Adjustable Inverting Audio Amp

Name: B4M1 DIP8 ±20 dB Adjustable Inverting Audio Amp
SKU: 28024
Price: 14.00 USD
Availability: InStock

This is a potentiometer-adjustable inverting gain stage in a DIP8 footprint for convenient breadboard prototyping.

Designed by Macalister Electronics in United Kingdom

B4M1 DIP8 ±20 dB Adjustable Inverting Audio Amp 1

B4M1 DIP8 ±20 dB Adjustable Inverting Audio Amp 2

B4M1 DIP8 ±20 dB Adjustable Inverting Audio Amp 3

B4M1 DIP8 ±20 dB Adjustable Inverting Audio Amp 4

B4M1 DIP8 ±20 dB Adjustable Inverting Audio Amp 5

B4M1 DIP8 ±20 dB Adjustable Inverting Audio Amp 6

B4M1 DIP8 ±20 dB Adjustable Inverting Audio Amp 7

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This is a potentiometer-adjustable inverting gain stage in a DIP8 footprint for convenient breadboard prototyping.

What is it? This module implements an inverting amplifier with gain adjustable from -20 to +20 dB for audio use. Why did you make it? The goal for this module was to implement an adjustable gain/atte…

What is it?

This module implements an inverting amplifier with gain adjustable from -20 to +20 dB for audio use.

Why did you make it?

The goal for this module was to implement an adjustable gain/attenuation stage that could be adjusted without a screwdriver, in the smallest possible footprint.

What makes it special?

The module fits inside a DIP8 footprint whilst still including a potentiometer with an integrated knob. Typically implementing this functionality on a breadboard with discrete components would involve using a DIP8 op-amp and a through-hole potentiometer next to it (plus some TH passives). With this module it can implemented within the same footprint as just the op-amp.

How to use it?

The module requires a bipolar power supply. The details of the supply range and pin-out can be found by following the Documentation link below but typically +4.5 V, 0 V, and -4.5 V would be required on the V+, Vref and V- pins respectively. The module includes power supply decoupling so external decoupling capacitors should not be required.

An input signal (referenced to Vref) applied to the Input pin will appear amplified/attenuated (and inverted) at the Output pin (also referenced to Vref) by an amount determined by the potentiometer position.

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