DS1868 Dual Digital Potentiometer Chip

Description

The DS1868 has two 256-position potentiometers, with wiper positions each set as 8-bit values. The potentiometers can be used independently or stacked for increased total resistance and number of taps. Communication takes place through a 3-wire serial port interface that drives an internal control logic unit. Multiple DS1868s can be linked or daisy-chained for control by a single processor.

The DS1868 +5-volt Dual Digital Potentiometer was designed for applications requiring extremely low current consumption and extremely low cost. Maximum standby current is 1µA. The DS1868 is based on DS1267 technology but operates from a single +5-volt or from dual ±3-volt supplies.

Digital potentiometers improve upon mechanical devices with processor control and programmability, greater reliability and accuracy, and packaging options that facilitate automatic assembly. They are used for signal control in modems and phones, battery charging and control circuitry, tuning and calibration, offset trimming of operational amplifiers, gain control, and power supply regulation.

Key Features

Two 256-position digital potentiometers
Wipers digitally set and read through serial port
EEPROM maintains settings in the absence of power
Ultra low-power consumption: max standby current of 1µA
3-wire serial control interface
Operating ranges:
- +5V or ±3V
- -40°C to +85°C

Key Specifications: Digital Potentiometers

Part Number

Taper

POTs Per Pkg.

Control Interface

Wiper Memory

Number of Steps

End-to-End Resistance (kΩ)

Res. Tol. (%)

Temp. Coeff. (typ)(ppm/°C)

Wiper Resistance (typ) (Ω)

Max. Idle State Supply Current @5V (µA)

Dual Supply Voltage (±V)

Supply Voltage (V)

RoHS Available

Package

Operating Temp. Range (°C)

Price^**

DS1868

Linear

3-Wire Serial

Volatile

256

10
100
50

750

400

4.5 to 5.5

Yes

PDIP/14
SOIC/16
TSSOP/20

-40 to +85

$2.00 @ 1k

See All Digital Potentiometers (121)

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.

Ordering Information

Notes:

Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales.
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Part number suffixes: T or T&R = tape and reel; + = RoHS/lead-free; # = RoHS/lead-exempt. More: SeeFull Data Sheet or Part 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.

Devices: 1-32 of 32

DS1868

Notes

Free
Sample

Buy

Package:	TYPE PINS FOOTPRINT
	DRAWING CODE/VAR *

Temp

RoHS/Lead-Free?
Materials Analysis

DS1868-10+

10kohms

PDIP;14 pin;
Dwg: 21-0043D (PDF)
Use pkgcode/variation: P14+3*

-40°C to +85°C

RoHS/Lead-Free: Lead Free
Materials Analysis

DS1868-10

10kohms

PDIP;14 pin;
Dwg: 21-0043D (PDF)
Use pkgcode/variation: P14-3*

-40°C to +85°C

RoHS/Lead-Free: No
Materials Analysis

DS1868-50

50kohms

PDIP;14 pin;
Dwg: 21-0043D (PDF)
Use pkgcode/variation: P14-3*

-40°C to +85°C

RoHS/Lead-Free: No
Materials Analysis

DS1868-100

100kohms

PDIP;14 pin;
Dwg: 21-0043D (PDF)
Use pkgcode/variation: P14-3*

-40°C to +85°C

RoHS/Lead-Free: No
Materials Analysis

DS1868-50+

50kohms

PDIP;14 pin;
Dwg: 21-0043D (PDF)
Use pkgcode/variation: P14+3*

-40°C to +85°C

RoHS/Lead-Free: Lead Free
Materials Analysis

DS1868-100+

100kohms

PDIP;14 pin;
Dwg: 21-0043D (PDF)
Use pkgcode/variation: P14+3*

-40°C to +85°C

RoHS/Lead-Free: Lead Free
Materials Analysis

DS1868S-050/T&R

50kohms

SOIC;16 pin;
Dwg: 21-0042B (PDF)
Use pkgcode/variation: W16-2*

-40°C to +85°C

See data sheet
Materials Analysis

DS1868S-100/T&R

100kohms

SOIC;16 pin;
Dwg: 21-0042B (PDF)
Use pkgcode/variation: W16-2*

-40°C to +85°C

RoHS/Lead-Free: No
Materials Analysis

DS1868S-100+

100kohms

SOIC;16 pin;
Dwg: 21-0042B (PDF)
Use pkgcode/variation: W16+2*

-40°C to +85°C

RoHS/Lead-Free: Lead Free
Materials Analysis

DS1868S-10+T&R

SOIC;16 pin;
Dwg: 21-0042B (PDF)
Use pkgcode/variation: W16+2*

-40°C to +85°C

RoHS/Lead-Free: Lead Free
Materials Analysis

DS1868S-10+

10kohms

SOIC;16 pin;
Dwg: 21-0042B (PDF)
Use pkgcode/variation: W16+2*

-40°C to +85°C

RoHS/Lead-Free: Lead Free
Materials Analysis

DS1868S-10/T&R

10kohms

SOIC;16 pin;
Dwg: 21-0042B (PDF)
Use pkgcode/variation: W16-2*

-40°C to +85°C

RoHS/Lead-Free: No
Materials Analysis

DS1868S-100

100kohms

SOIC;16 pin;
Dwg: 21-0042B (PDF)
Use pkgcode/variation: W16-2*

-40°C to +85°C

RoHS/Lead-Free: No
Materials Analysis

DS1868S-50

50kohms

SOIC;16 pin;
Dwg: 21-0042B (PDF)
Use pkgcode/variation: W16-2*

-40°C to +85°C

RoHS/Lead-Free: No
Materials Analysis

DS1868S-10

10kohms

SOIC;16 pin;
Dwg: 21-0042B (PDF)
Use pkgcode/variation: W16-2*

-40°C to +85°C

RoHS/Lead-Free: No
Materials Analysis

DS1868S-100+T&R

100kohms

SOIC;16 pin;
Dwg: 21-0042B (PDF)
Use pkgcode/variation: W16+2*

-40°C to +85°C

RoHS/Lead-Free: Lead Free
Materials Analysis

DS1868S-50+T&R

SOIC;16 pin;
Dwg: 21-0042B (PDF)
Use pkgcode/variation: W16+2*

-40°C to +85°C

RoHS/Lead-Free: Lead Free
Materials Analysis

DS1868S-50+

50kohms

SOIC;16 pin;
Dwg: 21-0042B (PDF)
Use pkgcode/variation: W16+2*

-40°C to +85°C

RoHS/Lead-Free: Lead Free
Materials Analysis

DS1868E-100/T&R/C1

TSSOP;20 pin;
Dwg: 56-G2010-000
Use pkgcode/variation: U20-1*

-40°C to +85°C

RoHS/Lead-Free: No
Materials Analysis

DS1868E-10/T&R/

TSSOP;20 pin;
Dwg: 56-G2010-000
Use pkgcode/variation: U20-1*

-40°C to +85°C

RoHS/Lead-Free: No
Materials Analysis

DS1868E-50+

50kohms

TSSOP;20 pin;
Dwg: 56-G2010-000
Use pkgcode/variation: U20+1*

-40°C to +85°C

RoHS/Lead-Free: Lead Free
Materials Analysis

DS1868E-50+T&R

TSSOP;20 pin;
Dwg: 56-G2010-000
Use pkgcode/variation: U20+1*

-40°C to +85°C

RoHS/Lead-Free: Lead Free
Materials Analysis

DS1868E-100+T&R

100kohms

TSSOP;20 pin;
Dwg: 56-G2010-000
Use pkgcode/variation: U20+1*

-40°C to +85°C

RoHS/Lead-Free: Lead Free
Materials Analysis

DS1868E-10

10kohms

TSSOP;20 pin;
Dwg: 56-G2010-000
Use pkgcode/variation: U20-1*

-40°C to +85°C

RoHS/Lead-Free: No
Materials Analysis

DS1868E-50

50kohms

TSSOP;20 pin;
Dwg: 56-G2010-000
Use pkgcode/variation: U20-1*

-40°C to +85°C

RoHS/Lead-Free: No
Materials Analysis

DS1868E-100

100kohms

TSSOP;20 pin;
Dwg: 56-G2010-000
Use pkgcode/variation: U20-1*

-40°C to +85°C

RoHS/Lead-Free: No
Materials Analysis

DS1868E-010/T&R

10kohms

TSSOP;20 pin;
Dwg: 56-G2010-000
Use pkgcode/variation: U20-1*

-40°C to +85°C

See data sheet
Materials Analysis

DS1868E-050/T&R

50kohms

TSSOP;20 pin;
Dwg: 56-G2010-000
Use pkgcode/variation: U20-1*

-40°C to +85°C

See data sheet
Materials Analysis

DS1868E-100/T&R

100kohms

TSSOP;20 pin;
Dwg: 56-G2010-000
Use pkgcode/variation: U20-1*

-40°C to +85°C

RoHS/Lead-Free: No
Materials Analysis

DS1868E-10+T&R

TSSOP;20 pin;
Dwg: 56-G2010-000
Use pkgcode/variation: U20+1*

-40°C to +85°C

RoHS/Lead-Free: Lead Free
Materials Analysis

DS1868E-100+

100kohms

TSSOP;20 pin;
Dwg: 56-G2010-000
Use pkgcode/variation: U20+1*

-40°C to +85°C

RoHS/Lead-Free: Lead Free
Materials Analysis

DS1868E-10+

10kohms

TSSOP;20 pin;
Dwg: 56-G2010-000
Use pkgcode/variation: U20+1*

-40°C to +85°C

RoHS/Lead-Free: Lead Free
Materials Analysis