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DS1801

Dual Audio Taper Potentiometer

Overview

Technical Documents

Ordering Info

Status

Active: In Production.

Description

The 1801 Dual Audio Taper Potentiometer consists of two 65-position, 45kΩ digital potentiometers with logarithmic resistance properties incrementing 1dB per step.

The DS1801 operates with automatic software control via a serial 3-wire interface, where wiper settings are written with 8-bit words. The part can be used in either 3V or 5V environments and anywhere within the industrial temperature range of -40°C to +85°C. Also enabling flexible design possibilities, the DS1801 supports daisy-chaining with devices under single-processor control.

The DS1801 provides high-performance audio volume and tone control in most applications where mechanical potentiometers are used, including CD players, guitar amplifiers, and sound boards. Digital potentiometers consume very little power while providing digital accuracy and reliability under flexible, automatic processor control.

Data Sheet

Download	Rev 1	(PDF, 240kB)
E-Mail

Key Features

Two digitally controlled, 65-position potentiometers
Ultra low-power consumption
Logarithmic resistive characteristics (1dB per step)
Zero-crossing detection to eliminate noise
Three-wire communication
Can be daisy-chained for single-processor, multidevice designs
Operating temperature range: -40°C to +85°C
Operating voltage range: 3V or 5V
Resistance available: 45kΩ

Key Specifications:

Digital Potentiometers

Part Number

Taper

POTs

Control Interface

Wiper Memory

Steps

R_END-TO-END
(kΩ)

Res. Tol.
(%)

Temp. Coeff.
(ppm/°C)

Wiper Resistance
(Ω)

I_CC @5V
(µA)

Smallest Available Pckg.
(mm²)

Budgetary Price

typ

max

max w/pins

See Notes

DS1801

Log

3-Wire Serial

Volatile

750

400

33.4

$2.31 @1k

See All Digital Potentiometers (129)

Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

Diagram

Block Diagram

Application Notes

Application Note 3287

White-LED Driver Provides 64-Step Logarithmic Dimming

Product Guides

Signal Chain (PDF)

Reliability Reports

Reliability Report:

DS1801.pdf

Software/Models

none

Ordering Information

Filters:

Part Number:

Package:

Temperature:

Tape and Reel

Sample

Part Number	Notes	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
DS1801				Active	PDIP(N);14 pin;158.4 mm² Outline Drawing:21-0043 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: P14-3*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
DS1801+				Active	PDIP(N);14 pin;158.4 mm² Outline Drawing:21-0043 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: P14+3*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS1801E-014	45kohms			Active	TSSOP;14 pin;33.4 mm² Outline Drawing:21-0066 (PDF) Land Pattern: 90-0113 (PDF) Use pkgcode/variation: U14-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
DS1801E-014+				Active	TSSOP;14 pin;33.4 mm² Outline Drawing:21-0066 (PDF) Land Pattern: 90-0113 (PDF) Use pkgcode/variation: U14+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS1801E-014+T&R				Active	TSSOP;14 pin;33.4 mm² Outline Drawing:21-0066 (PDF) Land Pattern: 90-0113 (PDF) Use pkgcode/variation: U14+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS1801E-014/T&R	45kohms			Active	TSSOP;14 pin;33.4 mm² Outline Drawing:21-0066 (PDF) Land Pattern: 90-0113 (PDF) Use pkgcode/variation: U14-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
DS1801S	45kohms			Active	SOIC(W);16 pin;110.6 mm² Outline Drawing:21-0042 (PDF) Land Pattern: 90-0107 (PDF) Use pkgcode/variation: W16-2*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
DS1801S+				Active	SOIC(W);16 pin;110.6 mm² Outline Drawing:21-0042 (PDF) Land Pattern: 90-0107 (PDF) Use pkgcode/variation: W16+2*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS1801S+T&R				Active	SOIC(W);16 pin;110.6 mm² Outline Drawing:21-0042 (PDF) Land Pattern: 90-0107 (PDF) Use pkgcode/variation: W16+2*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS1801S/T&R	45kohms			Active	SOIC(W);16 pin;110.6 mm² Outline Drawing:21-0042 (PDF) Land Pattern: 90-0107 (PDF) Use pkgcode/variation: W16-2*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis

Notes:

Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales.
Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day.
Part number suffixes: T or T&R = tape and reel; + = RoHS/lead-free; # = RoHS/lead-exempt; -D = drypack; -U/+U on DS parts = cut tape. More: See Full Data Sheet or Maxim Product Naming Conventions.
* Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.

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Information Index

Overview		Technical Documents		Ordering Info		Related Products
Description Key Features Applications/Uses Key Specifications Diagram Notes and Comments		Data Sheet Application Notes Evaluation Kits Product Guides Reliability Reports Software/Models		Price and Availability Samples Buy Online Package Information Lead-Free Information		Similar Products by Function Similar Products by Application Evaluation Kits Products with Similar Part Numbers Products Used With This

Rev 1; 2000-03-03
This page last modified: 2009-10-23