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DS1800 Datasheet Dual Inverting Log Gain/attenuator

Manufacturer: Dallas Semiconducotr

Overview: DS1800 Dual Inverting Log Gain/Attenuator .dalsemi.

Datasheet Details

Part number DS1800
Manufacturer Dallas Semiconducotr
File Size 428.72 KB
Description Dual Inverting Log Gain/Attenuator
Datasheet DS1800_DallasSemiconducotr.pdf

General Description

The DS1800 is a dual audio-taper potentiometer designed specifically for use in the feedback path of the inverting configuration of an operational amplifier (see Figure 2).

In this configuration, the DS1800 provides a VO /VI relationship of -20log(RF/RI), giving a gain/attenuation range covering +20 dB to -63 dB.

Each potentiometer has a total of 129 positions including mute.

Key Features

  • Ultra-low power consumption Operates from 3V or 5V supplies Two digitally controlled, 128-position potentiometers including mute Logarithmic gain characteristics Zero-crossing detection eliminates noise caused by discrete wiper changes Two control interfaces - 3-wire serial CPU control - Pushbutton control 20-pin DIP (300-mil), 20-pin SOIV (300mil), and 20-pin (173-mil) TSSOP packaging available Operating Temperature Range: - Industrial: -40°C to +85°C Software and hardware mute Standard Resista.

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