AD5243BRMZ100-RL7 Analog Devices Inc, AD5243BRMZ100-RL7 Datasheet

IC,Digital Potentiometer,TSSOP,10PIN,PLASTIC

AD5243BRMZ100-RL7

Manufacturer Part Number
AD5243BRMZ100-RL7
Description
IC,Digital Potentiometer,TSSOP,10PIN,PLASTIC
Manufacturer
Analog Devices Inc
Datasheet

Specifications of AD5243BRMZ100-RL7

Taps
256
Resistance (ohms)
100K
Number Of Circuits
2
Temperature Coefficient
35 ppm/°C Typical
Memory Type
Volatile
Interface
I²C, 2-Wire Serial
Voltage - Supply
2.7 V ~ 5.5 V
Operating Temperature
-40°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
10-MSOP, Micro10™, 10-uMAX, 10-uSOP
Resistance In Ohms
100K
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
AD5243EVAL - BOARD EVAL FOR AD5243
Lead Free Status / RoHS Status
Lead free / RoHS Compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
AD5243BRMZ100-RL7
Manufacturer:
ADI/亚德诺
Quantity:
20 000
Part Number:
AD5243BRMZ100-RL7
Manufacturer:
ADI/亚德诺
Quantity:
6 000
FEATURES
2-channel, 256-position potentiometers
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
Extra package address decode pins: AD0 and AD1 (AD5248 only)
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
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 AD5243 and AD5248 provide a compact 3 mm × 4.9 mm
packaged solution for dual, 256-position adjustment applications.
The AD5243 performs the same electronic adjustment function as
a 3-terminal mechanical potentiometer, and the AD5248 performs
the same adjustment function as a 2-terminal variable resistor.
Available in four end-to-end resistance values (2.5 kΩ, 10 kΩ,
50 kΩ, and 100 kΩ), these low temperature coefficient devices
are ideal for high accuracy and stability-variable resistance
adjustments. The wiper settings are controllable through the
I
address decode pins, AD0 and AD1, allowing multiple parts to
share the same I
1
Rev. A
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.
2
The terms digital potentiometer, VR, and RDAC are used interchangeably.
C-compatible digital interface. The AD5248 has extra package
programming applications
chemical, and optical sensors
DD
2
= 6 μA maximum
C, 2-wire bus on a PCB. The resistance between
S
= 5 μs typical on power-up
Dual, 256-Position, I
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.461.3113
the wiper and either endpoint 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 6 μA allows the AD5243/AD5248 to be used in portable
battery-operated applications.
For applications that program the AD5243/AD5258 at the factory,
Analog Devices, Inc., offers device programming software running
on Windows® NT/2000/XP operating systems. This software
effectively replaces the need for external I
in turn enhances the time to market of systems. An AD5243/
AD5248 evaluation kit and software are available. The kit includes
a cable and instruction manual.
GND
SDA
GND
FUNCTIONAL BLOCK DIAGRAMS
SCL
SDA
V
AD0
AD1
SCL
V
DD
DD
Digital Potentiometers
©2004–2009 Analog Devices, Inc. All rights reserved.
A1
ADDRESS
DECODE
REGISTER 1
REGISTER 1
WIPER
RDAC
W1
W1
Figure 1. AD5243
Figure 2. AD5248
PC INTERFACE
SERIAL INPUT
AD5243/AD5248
B1
B1
REGISTER
8
2
C-Compatible
A2
REGISTER 2
REGISTER 2
WIPER
RDAC
W2
W2
2
AD5243
AD5248
C controllers, which
B2
B2
www.analog.com
1

Related parts for AD5243BRMZ100-RL7

AD5243BRMZ100-RL7 Summary of contents

Page 1

FEATURES 2-channel, 256-position potentiometers 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 μs typical on power-up S Full read/write of wiper register ...

Page 2

AD5243/AD5248 TABLE OF CONTENTS Features .............................................................................................. 1 Applications ....................................................................................... 1 Functional Block Diagrams ............................................................. 1 General Description ......................................................................... 1 Revision History ............................................................................... 2 Specifications ..................................................................................... 3 Electrical Characteristics: 2.5 kΩ Version ................................. 3 Electrical Characteristics: 10 kΩ, 50 kΩ, and ...

Page 3

SPECIFICATIONS ELECTRICAL CHARACTERISTICS: 2.5 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

AD5243/AD5248 ELECTRICAL CHARACTERISTICS: 10 kΩ, 50 kΩ, AND 100 kΩ VERSIONS ± 10 ± 10 Table 2. Parameter DC CHARACTERISTICS—RHEOSTAT MODE 2 Resistor Differential Nonlinearity 2 Resistor Integral ...

Page 5

TIMING CHARACTERISTICS: ALL VERSIONS ± 10 ± 10 Table 3. Parameter INTERFACE TIMING CHARACTERISTICS SCL Clock Frequency Bus-Free Time Between Stop and Start, t Hold ...

Page 6

AD5243/AD5248 ABSOLUTE MAXIMUM RATINGS T = 25°C, unless otherwise noted. A Table 4. Parameter V to GND GND Terminal Current Bx Wx Pulsed ...

Page 7

PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS AD5243 TOP VIEW GND SDA SCL DD Figure 4. AD5243 Pin Configuration Table 5. AD5243 Pin Function Descriptions ...

Page 8

AD5243/AD5248 TYPICAL PERFORMANCE CHARACTERISTICS 2.0 1.5 1 2. 5.5V DD –0.5 –1.0 –1.5 –2 128 160 CODE (DECIMAL) Figure 6. R-INL vs. Code vs. Supply Voltages 0.5 0.4 0.3 ...

Page 9

–40°C, +25°C, +85°C, +125°C A 1.0 0 5.5V DD –0 –40°C, +25°C, +85°C, +125°C A –1.0 –1.5 –2 128 160 192 CODE (DECIMAL) ...

Page 10

AD5243/AD5248 2. –40°C TO +85°C, –40°C TO +125° – 5. –40°C TO +85°C, –40°C TO +125°C A –20 – ...

Page 11

V = 5. 2.7V DD 0.01 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 DIGITAL INPUT VOLTAGE (V) Figure 24. Supply Current vs. Digital Input Voltage V W SCL Figure 25. Digital Feedthrough V ...

Page 12

AD5243/AD5248 TEST CIRCUITS Figure 30 through Figure 36 illustrate the test circuits that define the test conditions used in the product specification tables (see Table 1 and Table 2 DUT 1LSB = V+/ ...

Page 13

THEORY OF OPERATION The AD5243/AD5248 are 256-position, digitally controlled variable resistor (VR) devices. 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 AND VOLTAGE Rheostat Operation ...

Page 14

AD5243/AD5248 PROGRAMMING THE POTENTIOMETER DIVIDER Voltage Output Operation The digital potentiometer easily generates a voltage divider at wiper to B and wiper to A, proportional to the input voltage Unlike the polarity GND, ...

Page 15

CONSTANT BIAS TO RETAIN RESISTANCE SETTING For users who desire nonvolatility but cannot justify the addi- tional cost of an EEMEM, the AD5243/AD5248 can be considered low cost alternatives by maintaining a constant bias to retain the wiper setting. The ...

Page 16

AD5243/AD5248 INTERFACE COMPATIBLE, 2-WIRE SERIAL BUS 2 The 2-wire, I C-compatible serial bus protocol operates as follows: 1. The master initiates data transfer by establishing a start condition, which is when a high-to-low transition ...

Page 17

Write Mode Table 9. AD5243 Write Mode Slave address byte Table 10. AD5248 Write Mode AD1 AD0 W Slave address byte Read Mode Table 11. ...

Page 18

AD5243/AD5248 CONTROLLER PROGRAMMING Write Bit Patterns 1 SCL SDA START BY FRAME 1 MASTER SLAVE ADDRESS BYTE 1 SCL AD1 AD0 SDA START BY FRAME 1 MASTER ...

Page 19

... AD5243BRMZ2.5-RL7 2.5 kΩ 1 AD5243BRMZ10 10 kΩ AD5243BRMZ10-RL7 1 10 kΩ AD5243BRMZ50 50 kΩ 1 AD5243BRMZ50-RL7 50 kΩ 1 AD5243BRMZ100 100 kΩ 1 AD5243BRMZ100-RL7 100 kΩ AD5243EVAL 2 AD5248BRM2.5 2.5 kΩ AD5248BRM2.5-RL7 2.5 kΩ AD5248BRM10 10 kΩ AD5248BRM10-RL7 10 kΩ AD5248BRM50 50 kΩ AD5248BRM50-RL7 50 kΩ AD5248BRM100 100 kΩ ...

Page 20

AD5243/AD5248 NOTES 2 Purchase of licensed I C components of Analog Devices or one of its sublicensed Associated Companies conveys a license for the purchaser under the Philips I Patent Rights to use these components ©2004–2009 ...

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