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DS1844

Quad Digital Potentiometer

Overview

Technical Documents

Ordering Info

Status

Active: In Production.

Description

The DS1844 Quad Digital Potentiometer combines four 64-position potentiometers for simultaneous control over four parameters. It is available with standard resistance values of 10kΩ, 50kΩ, and 100kΩ for all four potentiometers, or with mixed values within one DS1844.

The quad potentiometer is intended for any application requiring multiple controls, including voltage, current, audio volume and tone, or LCD contrast and brightness levels. The DS1844 operates in power environments ranging from 2.7V to 5.5V and in industrial thermal environments of -40°C to +85°C.

Digital potentiometers replace mechanical parts with digital accuracy, reliability, and the capability for automatic processor control.

Data Sheet

Download	Rev 2	(PDF, 272kB)
E-Mail

Key Features

Four independent, digitally controlled 64-position potentiometers
Two interface control options:
- 5-wire serial
- 2-wire addressable
Standard resistance values: 10kΩ, 50kΩ, 100kΩ
Mixed resistor combinations available
Operating ranges:
- 2.7V to 5.5V
- -40°C to +85°C

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

DS1844

Linear

2-Wire or 5-Wire Serial

Volatile

100

750

400

217.1

$2.26 @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 3081		How to Increase the Bandwidth of Digital Potentiometers 10x to 100x
Application Note 3317		Adding Windows NT/2000/XP Support to the AN3315 Parallel-Port 2-Wire Software
Application Note 4051		Using an Analog Voltage to Control a Digital Potentiometer

Product Guides

Signal Chain (PDF)

Reliability Reports

Reliability Report:

DS1844.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
DS1844-010	10kohms			Active	PDIP(N);20 pin;217.1 mm² Outline Drawing:21-0043 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: P20-3*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
DS1844-010+				Active	PDIP(N);20 pin;217.1 mm² Outline Drawing:21-0043 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: P20+3*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS1844-050	50kohms			Active	PDIP(N);20 pin;217.1 mm² Outline Drawing:21-0043 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: P20-3*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
DS1844-050+				Active	PDIP(N);20 pin;217.1 mm² Outline Drawing:21-0043 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: P20+3*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS1844-100	100kohms			Active	PDIP(N);20 pin;217.1 mm² Outline Drawing:21-0043 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: P20-3*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
DS1844-100+				Active	PDIP(N);20 pin;217.1 mm² Outline Drawing:21-0043 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: P20+3*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS1844E-010	10kohms			Active	TSSOP;20 pin;45.2 mm² Outline Drawing:21-0066 (PDF) Land Pattern: 90-0116 (PDF) Use pkgcode/variation: U20-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
DS1844E-010+				Active	TSSOP;20 pin;45.2 mm² Outline Drawing:21-0066 (PDF) Land Pattern: 90-0116 (PDF) Use pkgcode/variation: U20+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS1844E-010+T&R				Active	TSSOP;20 pin;45.2 mm² Outline Drawing:21-0066 (PDF) Land Pattern: 90-0116 (PDF) Use pkgcode/variation: U20+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS1844E-010/T&R	10kohms			Active	TSSOP;20 pin;45.2 mm² Outline Drawing:21-0066 (PDF) Land Pattern: 90-0116 (PDF) Use pkgcode/variation: U20-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
Part Number	Notes	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
DS1844E-050	50kohms			Active	TSSOP;20 pin;45.2 mm² Outline Drawing:21-0066 (PDF) Land Pattern: 90-0116 (PDF) Use pkgcode/variation: U20-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
DS1844E-050+				Active	TSSOP;20 pin;45.2 mm² Outline Drawing:21-0066 (PDF) Land Pattern: 90-0116 (PDF) Use pkgcode/variation: U20+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS1844E-050+T&R				Active	TSSOP;20 pin;45.2 mm² Outline Drawing:21-0066 (PDF) Land Pattern: 90-0116 (PDF) Use pkgcode/variation: U20+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS1844E-050/T&R	50kohms			Active	TSSOP;20 pin;45.2 mm² Outline Drawing:21-0066 (PDF) Land Pattern: 90-0116 (PDF) Use pkgcode/variation: U20-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
DS1844E-100	100kohms			Active	TSSOP;20 pin;45.2 mm² Outline Drawing:21-0066 (PDF) Land Pattern: 90-0116 (PDF) Use pkgcode/variation: U20-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
DS1844E-100+				Active	TSSOP;20 pin;45.2 mm² Outline Drawing:21-0066 (PDF) Land Pattern: 90-0116 (PDF) Use pkgcode/variation: U20+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS1844E-100+T&R				Active	TSSOP;20 pin;45.2 mm² Outline Drawing:21-0066 (PDF) Land Pattern: 90-0116 (PDF) Use pkgcode/variation: U20+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS1844E-100/T&R	100kohms			Active	TSSOP;20 pin;45.2 mm² Outline Drawing:21-0066 (PDF) Land Pattern: 90-0116 (PDF) Use pkgcode/variation: U20-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
DS1844S-010	10kohms			Active	SOIC(W);20 pin;137.3 mm² Outline Drawing:21-0042 (PDF) Land Pattern: 90-0108 (PDF) Use pkgcode/variation: W20-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
DS1844S-010+				Active	SOIC(W);20 pin;137.3 mm² Outline Drawing:21-0042 (PDF) Land Pattern: 90-0108 (PDF) Use pkgcode/variation: W20+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
Part Number	Notes	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
DS1844S-010+T&R				Active	SOIC(W);20 pin;137.3 mm² Outline Drawing:21-0042 (PDF) Land Pattern: 90-0108 (PDF) Use pkgcode/variation: W20+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS1844S-010/T&R	10kohms			Active	SOIC(W);20 pin;137.3 mm² Outline Drawing:21-0042 (PDF) Land Pattern: 90-0108 (PDF) Use pkgcode/variation: W20-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
DS1844S-050	50kohms			Active	SOIC(W);20 pin;137.3 mm² Outline Drawing:21-0042 (PDF) Land Pattern: 90-0108 (PDF) Use pkgcode/variation: W20-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
DS1844S-050+				Active	SOIC(W);20 pin;137.3 mm² Outline Drawing:21-0042 (PDF) Land Pattern: 90-0108 (PDF) Use pkgcode/variation: W20+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS1844S-050+T&R				Active	SOIC(W);20 pin;137.3 mm² Outline Drawing:21-0042 (PDF) Land Pattern: 90-0108 (PDF) Use pkgcode/variation: W20+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS1844S-050/T&R	50kohms			Active	SOIC(W);20 pin;137.3 mm² Outline Drawing:21-0042 (PDF) Land Pattern: 90-0108 (PDF) Use pkgcode/variation: W20-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
DS1844S-100	100kohms			Active	SOIC(W);20 pin;137.3 mm² Outline Drawing:21-0042 (PDF) Land Pattern: 90-0108 (PDF) Use pkgcode/variation: W20-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
DS1844S-100+				Active	SOIC(W);20 pin;137.3 mm² Outline Drawing:21-0042 (PDF) Land Pattern: 90-0108 (PDF) Use pkgcode/variation: W20+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS1844S-100+T&R				Active	SOIC(W);20 pin;137.3 mm² Outline Drawing:21-0042 (PDF) Land Pattern: 90-0108 (PDF) Use pkgcode/variation: W20+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS1844S-100/T&R	100kohms			Active	SOIC(W);20 pin;137.3 mm² Outline Drawing:21-0042 (PDF) Land Pattern: 90-0108 (PDF) Use pkgcode/variation: W20-1*	-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 2; 2005-06-02
This page last modified: 2009-10-23