EVAL-AD5160EBZ Analog Devices Inc, EVAL-AD5160EBZ Datasheet

no-image

EVAL-AD5160EBZ

Manufacturer Part Number
EVAL-AD5160EBZ
Description
EVALUATION BOARD
Manufacturer
Analog Devices Inc
Datasheet

Specifications of EVAL-AD5160EBZ

Main Purpose
Digital Potentiometer
Embedded
No
Utilized Ic / Part
AD5160
Primary Attributes
1 Channel, 256 Position
Secondary Attributes
SPI Interface
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
FEATURES
256-position
End-to-end resistance: 5 kΩ, 10 kΩ, 50 kΩ, 100 kΩ
Compact SOT-23-8 (2.9 mm × 3 mm) package
SPI-compatible interface
Power-on preset to midscale
Single supply: 2.7 V to 5.5 V
Low temperature coefficient: 45 ppm/°C
Low power, I
Wide operating temperature: –40°C to +125°C
Evaluation board available
APPLICATIONS
Mechanical potentiometer replacement in new designs
Transducer adjustment of pressure, temperature, position,
RF amplifier biasing
Automotive electronics adjustment
Gain control and offset adjustment
GENERAL DESCRIPTION
The AD5160 provides a compact 2.9 mm × 3 mm packaged
solution for 256-position adjustment applications. These
devices perform the same electronic adjustment function as
mechanical potentiometers
enhanced resolution, solid-state reliability, and superior low
temperature coefficient performance.
1
Rev. B
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.
chemical, and optical sensors
DD
= 8 μA
1
or variable resistors but with
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.461.3113
The wiper settings are controllable through an SPI-compatible
digital interface. The resistance between the wiper and either
end point of the fixed resistor varies linearly with respect to the
digital code transferred into the RDAC latch.
Operating from a 2.7 V to 5.5 V power supply and consuming
less than 5 μA allows for usage in portable battery-operated
applications.
256-Position SPI-Compatible
CLK
SDI
CS
FUNCTIONAL BLOCK DIAGRAM
Digital Potentiometer
©2003–2009 Analog Devices, Inc. All rights reserved.
PIN CONFIGURATION
SPI INTERFACE
GND
CLK
REGISTER
V
DD
WIPER
W
GND
1
2
3
4
(Not to Scale)
Figure 1.
Figure 2.
TOP VIEW
AD5160
V
DD
8
7
6
5
A
B
CS
SDI
AD5160
www.analog.com
W
A
B

Related parts for EVAL-AD5160EBZ

EVAL-AD5160EBZ Summary of contents

Page 1

... Single supply: 2 5.5 V Low temperature coefficient: 45 ppm/°C Low power μA DD Wide operating temperature: –40°C to +125°C Evaluation board available APPLICATIONS Mechanical potentiometer replacement in new designs Transducer adjustment of pressure, temperature, position, chemical, and optical sensors RF amplifier biasing Automotive electronics adjustment ...

Page 2

AD5160 TABLE OF CONTENTS Features .............................................................................................. 1 Applications ....................................................................................... 1 Functional Block Diagram .............................................................. 1 Pin Configuration ............................................................................. 1 General Description ......................................................................... 1 Revision History ............................................................................... 2 Specifications ..................................................................................... 3 Electrical Characteristics—5 kΩ Version .................................. 3 10 kΩ, 50 kΩ, ...

Page 3

SPECIFICATIONS ELECTRICAL CHARACTERISTICS—5 kΩ VERSION ± 10 ± 10 Table 1. Parameter DC CHARACTERISTICS Rheostat Mode 2 Resistor Differential Nonlinearity 2 Resistor Integral Nonlinearity 3 Nominal Resistor Tolerance ...

Page 4

AD5160 10 kΩ, 50 kΩ, 100 kΩ VERSIONS ± 10 ± 10 Table 2. Parameter DC CHARACTERISTICS Rheostat Mode 2 Resistor Differential Nonlinearity 2 Resistor Integral Nonlinearity 3 ...

Page 5

TIMING CHARACTERISTICS—ALL VERSIONS V = +5V ± 10%, or +3V ± 10 Table 3. Parameter SPI INTERFACE TIMING CHARACTERISTICS Clock Frequency Input Clock Pulse Width Data Setup Time Data Hold Time CS Setup Time CS ...

Page 6

AD5160 ABSOLUTE MAXIMUM RATINGS T = +25°C, unless otherwise noted. A Table 4. Parameter V to GND GND Maximum Current I MAX Pulsed ...

Page 7

PIN CONFIGURATION AND FUNCTION DESCRIPTIONS Table 5. Pin Function Descriptions Pin Mnemonic Description Terminal Positive Power Supply GND Digital Ground. 4 CLK Serial Clock Input. Positive edge triggered. 5 SDI Serial Data Input. ...

Page 8

AD5160 TYPICAL PERFORMANCE CHARACTERISTICS 1.0 0.8 0.6 0.4 0.2 0 –0.2 –0.4 –0.6 –0.8 –1 128 160 CODE (Decimal) Figure 4. R-INL vs. Code vs. Supply Voltages 1.0 0.8 0.6 0.4 0.2 0 –0.2 –0.4 –0.6 ...

Page 9

CODE (Decimal) Figure 10. R-INL vs. Code 1.0 0.8 0.6 0.4 0.2 0 –0.2 –0.4 –0.6 –0.8 –1.0 ...

Page 10

AD5160 200 150 100 50 0 – 128 CODE (Decimal) Figure 16. Rheostat Mode Tempco ∆R 160 140 120 100 – 128 160 CODE (Decimal) Figure 17. ...

Page 11

REF LEVEL /DIV –5.000dB 0.500dB –5.5 5kΩ – 1.026 MHz –6.0 10kΩ – 511 MHz 50kΩ – 101 MHz –6.5 100kΩ – 54 MHz –7.0 –7.5 –8.0 –8 50kΩ 5kΩ –9 10kΩ ...

Page 12

AD5160 TEST CIRCUITS Figure 28 to Figure 36 illustrate the test circuits that define the test conditions used in the product specification tables. DUT 1LSB = V+/ Figure 28. Test Circuit for ...

Page 13

SPI INTERFACE Table 6. Serial Data-Word Format MSB SDI (DATA IN CLK VOUT 0 Figure 38. SPI Interface Detailed ...

Page 14

AD5160 THEORY OF OPERATION The AD5160 is a 256-position digitally controlled variable resistor (VR) device. An internal power-on preset places the wiper at midscale during power-on, which simplifies the fault condition recovery at power-up. PROGRAMMING THE VARIABLE RESISTOR Rheostat Operation ...

Page 15

... Standard logic families work well. If mechanical switches are used for product evaluation, they should be debounced by a flip-flop or other suitable means. When CS is low, the clock loads data into the serial register on each positive clock edge ...

Page 16

... The AD5160 contains 2532 transistors. Die size: 30.7 mil × 76.8 mil = 2358 sq. mil RoHS Compliant Part. 3 The evaluation board is shipped with the 10 kΩ R ©2003–2009 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. 3.00 2 ...

Related keywords