AD5112 AD [Analog Devices], AD5112 Datasheet

AD5112

Manufacturer Part Number

AD5112

Description

Manufacturer

AD [Analog Devices]

Datasheet

1.AD5112.pdf (24 pages)

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Company:

Meier Automation Equipment Co., Limited

Part Number:

AD5112BCPZ10-RL7

Manufacturer:

ADI/亚德诺

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20 000

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Data Sheet

FEATURES

Single-channel, 128-/64-/32-position resolution

5 kΩ, 10 kΩ, 80 kΩ nominal resistance

Maximum ±8% nominal resistor tolerance error

Low wiper resistance

±6 mA maximum wiper current density

Rheostat mode temperature coefficient: 35 ppm/°C

Potentiometer mode temperature coefficient: 5 ppm/°C

2.3 V to 5.5 V single-supply operation

Power-on EEPROM refresh time < 50 μs

Simple up/down manual or digital configurable control

Chip select enable multiple device operation

50-year typical data retention at 125°C

1 million write cycles

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

Thin, 2 mm × 2 mm × 0.55 mm 8-lead LFCSP package

APPLICATIONS

Mechanical potentiometer replacement

Portable electronics level adjustment

Audio volume control

Low resolution DAC

LCD panel brightness and contrast control

Programmable voltage to current conversion

Programmable filters, delays, time constants

Feedback resistor programmable power supply

Sensor calibration

GENERAL DESCRIPTION

The

for 128-/64-/32-position adjustment applications, offering

guaranteed low resistor tolerance errors of ±8% and up to

±6 mA current density in the A, B, and W pins. The low resistor

tolerance, low nominal temperature coefficient, and high

bandwidth simplify open-loop applications, as well as tolerance

matching applications.

The new low wiper resistance feature minimizes the wiper

resistance in the extremes of the resistor array to only 45 Ω,

typical.

A simple 3-wire up/down interface allows manual switching

or high speed digital control with clock rates up to 50 MHz.

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 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.

AD5111/AD5113/AD5115

provide a nonvolatile solution

Resistor Tolerance, Nonvolatile Digital Potentiometer

Single-Channel, 128-/64-/32-Position, Up/Down,

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

Tel: 781.329.4700

Fax: 781.461.3113

The

LFCSP package. The parts are guaranteed to operate over the

extended industrial temperature range of −40°C to +125°C.

Table 1. ±8% Resistance Tolerance Family

Model

AD5110

AD5111

AD5112

AD5113

AD5116

AD5114

AD5115

CLK

U/D

AD5111/AD5113/AD5115

FUNCTIONAL BLOCK DIAGRAM

Resistance (kΩ)

10, 80

5, 10, 80

10, 80

POWER-ON

CONTROL

UP/DOWN

RESET

LOGIC

Figure 1.

DATA

GND

are available in a 2 mm × 2 mm

AD5111/

AD5113/

AD5115

Position

128

EEPROM

RDAC

www.analog.com

Interface

Up/down

Push-button

Up/down

Related parts for AD5112

AD5112 Summary of contents

Page 1

... AD5111/AD5113/AD5115 LFCSP package. The parts are guaranteed to operate over the extended industrial temperature range of −40°C to +125°C. Table 1. ±8% Resistance Tolerance Family Model AD5110 AD5111 AD5112 AD5113 AD5116 AD5114 AD5115 One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781.329.4700 Fax: 781.461.3113 ...

Page 2

AD5111/AD5113/AD5115 TABLE OF CONTENTS Features .............................................................................................. 1 Applications ....................................................................................... 1 Functional Block Diagram .............................................................. 1 General Description ......................................................................... 1 Revision History ............................................................................... 2 Specifications ..................................................................................... 3 Electrical Characteristics—AD5111 .......................................... 3 Electrical Characteristics—AD5113 .......................................... 5 Electrical Characteristics—AD5115 .......................................... 7 Interface Timing ...

Page 3

Data Sheet SPECIFICATIONS ELECTRICAL CHARACTERISTICS—AD5111 10 kΩ and 80 kΩ versions 2 5 Table 2. Parameter DC CHARACTERISTICS—RHEOSTAT MODE Resolution Resistor Integral Nonlinearity 2 2 Resistor Differential Nonlinearity Nominal Resistor Tolerance 3 Resistance ...

Page 4

AD5111/AD5113/AD5115 Parameter DYNAMIC CHARACTERISTICS Bandwidth Total Harmonic Distortion V Settling Time W Resistor Noise Density 3 FLASH/EE MEMORY RELIABILITY 11 Endurance 12 Data Retention 1 Typical values represent average readings at 25° R-INL is the ...

Page 5

Data Sheet ELECTRICAL CHARACTERISTICS—AD5113 5 kΩ, 10 kΩ, and 80 kΩ versions 2 5 Table 3. Parameter DC CHARACTERISTICS—RHEOSTAT MODE Resolution 2 Resistor Integral Nonlinearity 2 Resistor Differential Nonlinearity Nominal Resistor Tolerance Resistance ...

Page 6

AD5111/AD5113/AD5115 Parameter DYNAMIC CHARACTERISTICS Bandwidth Total Harmonic Distortion V Settling Time W Resistor Noise Density 3 FLASH/EE MEMORY RELIABILITY Endurance 11 Data Retention 12 1 Typical values represent average readings at 25° R-INL is the ...

Page 7

Data Sheet ELECTRICAL CHARACTERISTICS—AD5115 10 kΩ and 80 kΩ versions 2 5 Table 4. Parameter DC CHARACTERISTICS—RHEOSTAT MODE Resolution 2 Resistor Integral Nonlinearity 2 Resistor Differential Nonlinearity Nominal Resistor Tolerance 3 Resistance Temperature ...

Page 8

Page 9

Data Sheet INTERFACE TIMING SPECIFICATIONS 5.5 V; all specifications T DD Table 5. Parameter Test Conditions/Comments f V ≥ 2.7 V CLK DD V < 2 ≥ 2.7 V ...

Page 10

AD5111/AD5113/AD5115 ABSOLUTE MAXIMUM RATINGS T = 25°C, unless otherwise noted. A Table 6. Parameter V to GND GND LOGIC GND ...

Page 11

Data Sheet PIN CONFIGURATION AND FUNCTION DESCRIPTIONS Table 8. Pin Function Descriptions Pin No. Mnemonic Description 1 V Positive Power Supply. Decouple this pin with 0.1 µF ceramic capacitors and 10 µF capacitors Terminal A of RDAC. ...

Page 12

AD5111/AD5113/AD5115 TYPICAL PERFORMANCE CHARACTERISTICS 0.10 0.08 0.06 0.04 0.02 0 –0.02 –0.04 –0.06 CODE (Decimal) Figure 6. R-INL vs. Code (AD5111) 0.08 0.06 0.04 0.02 0 5kΩ, –40°C 5kΩ, +25°C 5kΩ, +125°C –0.02 10kΩ, –40°C 10kΩ, +25°C 10kΩ, +125°C –0.04 ...

Page 13

Data Sheet 0.08 0.06 0.04 0.02 0 –0.02 –0.04 –0.06 –0.08 CODE (Decimal) Figure 12. INL vs. Code (AD5111) 0.08 0.06 0.04 0.02 0 –0.02 –0.04 –0.06 –0. ...

Page 14

AD5111/AD5113/AD5115 800 3.3V DD 700 600 500 400 300 200 100 0 –100 –40 –25 – TEMPERATURE (°C) Figure 18. Supply Current vs. Temperature 200 ...

Page 15

Data Sheet 0 (0x20) [0x10] 0x40 –10 (0x10) [0x08] 0x20 (0x08) [0x04] 0x10 –20 (0x04) [0x02] 0x08 (0x02) [0x01] 0x04 –30 (0x01) [0x00] 0x02 (0x00) 0x01 –40 –50 0x00 –60 –70 AD5111 (AD5113) [AD5115] –80 10k 100k FREQUENCY (Hz) Figure ...

Page 16

AD5111/AD5113/AD5115 0.35 0.30 0.25 0.20 0.15 0.10 0.05 0 –0.05 –0.10 – TIME (µs) Figure 30. Maximum Transition Glitch 0.0025 0.0020 0.0015 0.0010 0.0005 0 –600 –500 –400 –300 –200 –100 0 100 RESISTOR DRIFT (ppm) Figure ...

Page 17

Data Sheet TEST CIRCUITS Figure 36 to Figure 41 define the test conditions used in the Specifications section. NC DUT CONNECT Figure 36. Resistor Position Nonlinearity Error (Rheostat Operation: R-INL, ...

Page 18

AD5111/AD5113/AD5115 THEORY OF OPERATION The AD5111/AD5113/AD5115 digital programmable resistors are designed to operate as true variable resistors for analog signals within the terminal voltage range of GND < The resistor wiper position is determined by the RDAC ...

Page 19

Data Sheet RDAC ARCHITECTURE To achieve optimum performance, Analog Devices, Inc., has patented the RDAC segmentation architecture for all the digital potentiometers. In particular, the AD5111/AD5113/AD5115 employ a two-stage segmentation approach as shown in Figure 42. The AD5111/AD5113/AD5115 designed with ...

Page 20

AD5111/AD5113/AD5115 Similar to the mechanical potentiometer, the resistance of the RDAC between the W terminal and the A terminal also produces a digitally controlled complementary resistance starts at the maximum resistance value and decreases as the WA data ...

Page 21

Data Sheet POWER-UP SEQUENCE Because of the ESD protection diodes that limit the voltage compliance at the A, B, and W terminals (see Figure 45 important to power on V before applying any voltage to the DD A, ...

Page 22

AD5111/AD5113/AD5115 OUTLINE DIMENSIONS PIN 1 INDEX AREA 0.60 0.55 0.50 SEATING PLANE ORDERING GUIDE Model 1 R (kΩ) Resolution AB AD5111BCPZ10-RL7 10 128 AD5111BCPZ10-500R7 10 128 AD5111BCPZ80-RL7 80 128 AD5111BCPZ80-500R7 80 128 AD5113BCPZ5-RL7 5 64 AD5113BCPZ5-500R7 5 64 AD5113BCPZ10-RL7 10 ...

Page 23

Data Sheet NOTES AD5111/AD5113/AD5115 Rev Page ...

Page 24

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