AD5203AN10 Analog Devices Inc, AD5203AN10 Datasheet

AD5203AN10

Manufacturer Part Number

AD5203AN10

Description

IC DGTL POT QUAD 64POS 24-DIP

Manufacturer

Analog Devices Inc

Datasheet

1.AD5203ARUZ100-REEL.pdf (12 pages)

Specifications of AD5203AN10

Rohs Status

RoHS non-compliant

Taps

Resistance (ohms)

10K

Number Of Circuits

Temperature Coefficient

700 ppm/°C Typical

Memory Type

Volatile

Interface

SPI, 3-Wire Serial

Voltage - Supply

2.7 V ~ 5.5 V

Operating Temperature

-40°C ~ 85°C

Mounting Type

Through Hole

Package / Case

24-DIP (0.300", 7.62mm)

Resistance In Ohms

10K

Number Of Elements

# Of Taps

Resistance (max)

10KOhm

Power Supply Requirement

Single

Interface Type

Serial (3-Wire/SPI)

Single Supply Voltage (typ)

3/5V

Dual Supply Voltage (typ)

Not RequiredV

Single Supply Voltage (min)

2.7V

Single Supply Voltage (max)

5.5V

Dual Supply Voltage (min)

Not RequiredV

Dual Supply Voltage (max)

Not RequiredV

Operating Temp Range

-40C to 85C

Operating Temperature Classification

Industrial

Mounting

Through Hole

Pin Count

Lead Free Status / Rohs Status

Not Compliant

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GENERAL DESCRIPTION

The AD5203 provides a quad channel, 64-position digitally-

controlled variable resistor (VR) device. These parts perform the

same electronic adjustment function as a potentiometer or vari-

able resistor. The AD5203 contains four independent variable

resistors in a 24-lead SOIC and the compact TSSOP-24 pack-

ages. Each part contains a fixed resistor with a wiper contact

that taps the fixed resistor value at a point determined by a digi-

tal code loaded into the controlling serial input register. The

resistance between the wiper and either endpoint of the fixed

resistor varies linearly with respect to the digital code transferred

into the VR latch. Each variable resistor offers a completely

programmable value of resistance, between the A terminal and

the wiper or the B terminal and the wiper. The fixed A-to-B

terminal resistance of 10 k , or 100 k has a 1% channel-to-

channel matching tolerance with a nominal temperature coeffi-

cient of 700 ppm/ C.

Each VR has its own VR latch which holds its programmed

resistance value. These VR latches are updated from an internal

serial-to-parallel shift register that is loaded from a standard

3-wire serial-input digital interface. Eight data bits make up the

data word clocked into the serial input register. The data word is

decoded where the first two bits determine the address of the VR

latch to be loaded, the last 6-bits are data. A serial data output

pin at the opposite end of the serial register allows simple daisy-

chaining in multiple VR applications without additional external

decoding logic.

REV. 0

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

which may result from its use. No license is granted by implication or

otherwise under any patent or patent rights of Analog Devices.

FEATURES

64 Position

Replaces Four Potentiometers

10 k , 100 k

Power Shutdown—Less than 5

3-Wire SPI-Compatible Serial Data Input

10 MHz Update Data Loading Rate

+2.7 V to +5.5 V Single Supply Operation

Midscale Preset

APPLICATIONS

Mechanical Potentiometer Replacement

Programmable Filters, Delays, Time Constants

Volume Control, Panning

Line Impedance Matching

Power Supply Adjustment

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

Tel: 781/329-4700

Fax: 781/326-8703

DGND

The reset RS pin forces the wiper to the midscale position by

loading 20

tor to an end-to-end open circuit condition on terminal A and

shorts the wiper to terminal B, achieving a microwatt power

shutdown state. When shutdown is returned to logic-high the

previous latch settings put the wiper in the same resistance set-

ting prior to shutdown.

The AD5203 is available in a narrow body P-DIP-24, the

24-lead surface mount package, and the compact 1.1 mm thin

TSSOP-24 package. All parts are guaranteed to operate over the

extended industrial temperature range of –40 C to +85 C.

For pin compatible higher resolution applications, see the 256-

position AD8403 product.

CLK

SDI

into the VR latch. The SHDN pin forces the resis-

FUNCTIONAL BLOCK DIAGRAM

AD5203

4-Channel, 64-Position

CK Q RS

SELECT

World Wide Web Site: http://www.analog.com

Digital Potentiometer

SERIAL

A1, A0

LATCH

DAC

8-BIT

SDO

LATCH

CK RS

LATCH

CK RS

LATCH

CK RS

LATCH

CK RS

6-BIT

AD5203

DAC 1

SHDN

DAC 2

SHDN

DAC 3

SHDN

DAC 4

SHDN

AGND1

AGND2

AGND4

AGND3

Related parts for AD5203AN10

AD5203AN10 Summary of contents

Page 1

FEATURES 64 Position Replaces Four Potentiometers 100 k Power Shutdown—Less than 5 3-Wire SPI-Compatible Serial Data Input 10 MHz Update Data Loading Rate +2 +5.5 V Single Supply Operation Midscale Preset APPLICATIONS Mechanical Potentiometer ...

Page 2

AD5203–SPECIFICATIONS ELECTRICAL CHARACTERISTICS Parameter DC CHARACTERISTICS RHEOSTAT MODE Specifications Apply to All VRs 2 Resistor Differential NL 2 Resistor Nonlinearity Error 3 Nominal Resistor Tolerance Resistance Temperature Coefficient Wiper Resistance Nominal Resistance Match DC CHARACTERISTICS POTENTIOMETER DIVIDER MODE Specifications Apply ...

Page 3

NOTES 1 Typicals represent average readings at +25 C and V 2 Resistor position nonlinearity error R-INL is the deviation from an ideal value measured between the maximum resistance and the minimum resistance wiper posi- tions. R-DNL measures the relative ...

Page 4

... AGND4 5 20 AD5203 (Not to Scale DGND 9 16 SHDN SDI 12 13 Model k Temperature Range AD5203AN10 10 – +85 C AD5203AR10 10 – +85 C AD5203ARU10 10 – +85 C AD5203AN100 100 – +85 C AD5203AR100 100 – +85 C AD5203ARU100 100 – +85 C Pin No. Name AGND2 AGND1 AGND4 AGND3 CLK ...

Page 5

V = +3V 10k CODE – Decimal Figure 2. Wiper to ...

Page 6

Performance Characteristics AD5203 R W (20mV/DIV) CS (5V/DIV) TIME 500ns/DIV Figure 11. One Position Step Change at Half-Scale (Code OUTPUT CS TIME 5 s/DIV Figure 14. Large Signal Settling Time 0 CODE = ...

Page 7

CODE = 10pF 4V 10k 100k 1M FREQUENCY – ...

Page 8

Test Circuits AD5203 DUT 1LSB = V+/ Figure 26. Potentiometer Divider Nonlinearity Error Test Circuit (INL, DNL) NO CONNECT DUT Figure 27. Resistor Position Nonlinearity Error (Rheostat ...

Page 9

OPERATION The AD5203 provides a quad channel, 64-position digitally- controlled variable resistor (VR) device. Changing the pro- grammed VR settings is accomplished by clocking in an 8-bit serial data word into the SDI (Serial Data Input) pin. The for- mat ...

Page 10

AD5203 PROGRAMMING THE POTENTIOMETER DIVIDER Voltage Output Operation The digital potentiometer easily generates an output voltage proportional to the input voltage applied to a given terminal. For example connecting A–terminal and B–terminal to ground produces an output ...

Page 11

The data setup and data hold times in the specification table determine the data valid time requirements. The last eight bits of the data word entered into the serial register are held when CS returns high. At the same time ...

Page 12

AD5203 0.210 (5.33) MAX 0.200 (5.05) 0.125 (3.18) 0.0118 (0.30) 0.0040 (0.10) 0.006 (0.15) 0.002 (0.05) SEATING PLANE OUTLINE DIMENSIONS Dimensions shown in inches and (mm). 24-Lead Narrow Body Plastic DIP (N-24) 1.275 (32.30) 1.125 (28.60 0.280 (7.11) ...

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