EVAL-AD5162SDZ Analog Devices, EVAL-AD5162SDZ Datasheet

EVAL-AD5162SDZ

Manufacturer Part Number

EVAL-AD5162SDZ

Description

Digital Potentiometer Development Tools EVALUATION BOARD

Manufacturer

Analog Devices

Series

AD5162r

Datasheet

1.EVAL-AD5162SDZ.pdf (20 pages)

Specifications of EVAL-AD5162SDZ

Rohs

yes

Product

Evaluation Boards

Tool Is For Evaluation Of

AD5162

Resistance

2.5 kOhms/10 kOhms/50 kOhms/100 kOhms

Operating Supply Voltage

5.5 V

Interface Type

SPI

Maximum Operating Temperature

+ 125 C

Factory Pack Quantity

For Use With

Sim DAC Web Tool

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FEATURES

2-channel, 256-position potentiometer

End-to-end resistance: 2.5 kΩ, 10 kΩ, 50 kΩ, and 100 kΩ

Compact 10-lead MSOP (3 mm × 4.9 mm) package

Fast settling time: t

Full read/write of wiper register

Power-on preset to midscale

Computer software replaces microcontroller in factory

Single supply: 2.7 V to 5.5 V

Low temperature coefficient: 35 ppm/°C

Low power: I

Wide operating temperature: −40°C to +125°C

Evaluation board available

Qualified for automotive applications

APPLICATIONS

Systems calibrations

Electronics level settings

Mechanical trimmers replacement in new designs

Permanent factory PCB setting

Transducer adjustment of pressure, temperature, position,

RF amplifier biasing

Automotive electronics adjustment

Gain control and offset adjustment

GENERAL DESCRIPTION

The AD5162 provides a compact 3 mm × 4.9 mm packaged

solution for dual, 256-position adjustment applications. This

device performs the same electronic adjustment function as a

3-terminal mechanical potentiometer. Available in four end-to-

end resistance values (2.5 kΩ, 10 kΩ, 50 kΩ, 100 kΩ), this low

temperature coefficient device is ideal for high accuracy and

stability-variable resistance adjustments. The wiper settings are

controllable through an SPI digital interface. The resistance

between the wiper and either endpoint of the fixed resistor

varies linearly with respect to the digital code transferred into

the RDAC latch.

Rev. C

Information furnished by Analog Devices is believed to be accurate and reliable. However, no

responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other

rights of third parties that may result from its use. Specifications subject to change without notice. No

license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

Trademarks and registered trademarks are the property of their respective owners.

The terms digital potentiometer, VR, and RDAC are used interchangeably.

programming applications

chemical, and optical sensors

= 6 µA maximum

= 5 µs typical on power-up

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Tel: 781.329.4700

Fax: 781.461.3113

Operating from a 2.7 V to 5.5 V power supply and consuming

less than 6 µA allows the AD5162 to be used in portable battery-

operated applications.

For applications that program the AD5162 at the factory,

Analog Devices offers device programming software running

on Windows® NT/2000/XP operating systems. This software

effectively replaces the need for external SPI controllers, which

in turn enhances the time to market of systems. An AD5162

evaluation kit and software are available. The kit includes a

cable and instruction manual.

GND

CLK

SDI

FUNCTIONAL BLOCK DIAGRAM

Dual, 256-Position, SPI

Digital Potentiometer

A = 0

WIPER

SPI INTERFACE

Figure 1.

A = 1

WIPER

AD5162

www.analog.com

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