EVAL-AD5110SDZ Analog Devices, EVAL-AD5110SDZ Datasheet

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EVAL-AD5110SDZ

Manufacturer Part Number
EVAL-AD5110SDZ
Description
Digital Potentiometer Development Tools Evaluation board
Manufacturer
Analog Devices
Series
AD5110r
Datasheet

Specifications of EVAL-AD5110SDZ

Rohs
yes
Product
Evaluation Boards
Tool Is For Evaluation Of
AD5110
Resistance
10 kOhms
Operating Supply Voltage
5.5 V
Interface Type
I2C
Maximum Operating Temperature
+ 125 C
Factory Pack Quantity
1
Data Sheet
FEATURES
Nominal resistor tolerance error: ±8% maximum
Wiper current: ±6 mA
Rheostat mode temperature coefficient: 35 ppm/°C
Low power consumption: 2.5 µA max @ 2.7 V and 125°C
Wide bandwidth: 4 MHz (5 kΩ option)
Power-on EEPROM refresh time < 50 μs
50-year typical data retention at 125°C
1 million write cycles
2.3 V to 5.5 V analog supply operation
1.8 V to 5.5 V logic supply operation
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.
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.
AD5110/AD5112/AD5114
provide a nonvolatile solution
Resistor Tolerance, Nonvolatile Digital Potentiometer
Document Feedback
Single-Channel, 128-/64-/32-Position, I
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Technical Support
Table 1. ±8% Resistance Tolerance Family
Model
AD5110
AD5111
AD5112
AD5113
AD5116
AD5114
AD5115
The wiper settings are controllable through an I
digital interface that is also used to readback the wiper register
and EEPROM content. Resistor tolerance is stored within
EEPROM, providing an end-to-end tolerance accuracy of 0.1%.
The
LFCSP package. The parts are guaranteed to operate over the
extended industrial temperature range of −40°C to +125°C.
SDA
SCL
AD5110/AD5112/AD5114
AD5110/AD5112/AD5114
FUNCTIONAL BLOCK DIAGRAM
Resistance (kΩ)
10, 80
10, 80
5, 10, 80
5, 10, 80
5, 10, 80
10, 80
10, 80
INTERFACE
POWER-ON
SERIAL
V
RESET
LOGIC
I
©2011–2012 Analog Devices, Inc. All rights reserved.
2
C
DATA
DATA
Figure 1.
GND
AD5110/AD5112/AD5114
are available in a 2 mm × 2 mm
V
REGISTER
DD
EEPROM
Position
128
128
64
64
64
32
32
RDAC
2
C-compatible
www.analog.com
2
Interface
I
Up/down
I
Up/down
Push-button
I
Up/down
2
2
2
C,
C
C
C
±
8%
A
W
B

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EVAL-AD5110SDZ Summary of contents

Page 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. ...

Page 2

AD5110/AD5112/AD5114 TABLE OF CONTENTS Features .............................................................................................. 1 Applications ....................................................................................... 1 Functional Block Diagram .............................................................. 1 General Description ......................................................................... 1 Revision History ............................................................................... 2 Specifications ..................................................................................... 3 Electrical Characteristics—AD5110 .......................................... 3 Electrical Characteristics—AD5112 .......................................... 5 Electrical Characteristics—AD5114 .......................................... 7 Interface Timing ...

Page 3

Data Sheet SPECIFICATIONS ELECTRICAL CHARACTERISTICS—AD5110 10 kΩ and 80 kΩ versions 2 5 Table 2. Parameter DC CHARACTERISTICS—RHEOSTAT MODE Resolution 2 Resistor Integral Nonlinearity 2 Resistor Differential Nonlinearity Nominal Resistor Tolerance 3 Resistance ...

Page 4

AD5110/AD5112/AD5114 Parameter POWER SUPPLIES Single-Supply Power Range Logic Supply Range Positive Supply Current EEMEM Store Current EEMEM Read Current Logic Supply Current 8 Power Dissipation 3 Power Supply Rejection DYNAMIC CHARACTERISTICS ...

Page 5

Data Sheet ELECTRICAL CHARACTERISTICS—AD5112 5 kΩ, 10 kΩ, and 80 kΩ versions 2 5 Table 3. Parameter DC CHARACTERISTICS—RHEOSTAT MODE Resolution Resistor Integral Nonlinearity 2 2 Resistor Differential Nonlinearity Nominal Resistor Tolerance 3 ...

Page 6

AD5110/AD5112/AD5114 Parameter POWER SUPPLIES Single-Supply Power Range Logic Supply Range Positive Supply Current EEMEM Store Current EEMEM Read Current Logic Supply Current 8 Power Dissipation 3 Power Supply Rejection DYNAMIC CHARACTERISTICS ...

Page 7

Data Sheet ELECTRICAL CHARACTERISTICS—AD5114 10 kΩ and 80 kΩ versions 2 5 Table 4. Parameter DC CHARACTERISTICS—RHEOSTAT MODE Resolution Resistor Integral Nonlinearity 2 2 Resistor Differential Nonlinearity Nominal Resistor Tolerance 3 Resistance Temperature ...

Page 8

AD5110/AD5112/AD5114 Parameter POWER SUPPLIES Single-Supply Power Range Logic Supply Range Positive Supply Current EEMEM Store Current EEMEM Read Current Logic Supply Current 8 Power Dissipation 3 Power Supply Rejection DYNAMIC CHARACTERISTICS ...

Page 9

Data Sheet INTERFACE TIMING SPECIFICATIONS 5.5 V; all specifications T LOGIC Table 5. Test Conditions/ 1 Parameter Comments Min 2 f Standard mode SCL Fast mode t Standard mode 4.0 1 Fast mode 0.6 t ...

Page 10

AD5110/AD5112/AD5114 SHIFT REGISTER AND TIMING DIAGRAM SCL t 6 SDA DB7 (MSB CONTROL BITS Figure 2. Input Register Content ...

Page 11

Data Sheet ABSOLUTE MAXIMUM RATINGS T = 25°C, unless otherwise noted. A Table 6. Parameter V to GND DD VLOGIC to GND GND ...

Page 12

AD5110/AD5112/AD5114 PIN CONFIGURATION AND FUNCTION DESCRIPTIONS Table 8. Pin Function Descriptions Pin No. Mnemonic Description 1 V Positive Power Supply; 2 5.5 V. This pin should be decoupled with 0.1 µF ceramic capacitors and 10 µF DD capacitors. ...

Page 13

Data Sheet TYPICAL PERFORMANCE CHARACTERISTICS 0.10 0.08 0.06 0.04 0.02 0 –0.02 –0.04 –0.06 CODE (Decimal) Figure 5. R-INL vs. Code (AD5110) 0.08 5kΩ, –40°C 5kΩ, +25°C 5kΩ, +125°C 0.06 10kΩ, –40°C 10kΩ, +25°C 10kΩ, +125°C 0.04 80kΩ, –40°C 80kΩ, ...

Page 14

AD5110/AD5112/AD5114 0.08 0.06 0.04 0.02 0 –0.02 –0.04 –0.06 –0.08 CODE (Decimal) Figure 11. INL vs. Code (AD5110) 0.08 0.06 0.04 0.02 0 –0.02 –0.04 –0.06 –0. ...

Page 15

Data Sheet 800 700 600 500 400 300 200 2.3V AVERAGE OF I 3.3V AVERAGE 2.3V AVERAGE OF I 5.0V AVERAGE OF I LOGIC 100 3.3V AVERAGE OF I 5.0V AVERAGE –100 –40 ...

Page 16

AD5110/AD5112/AD5114 0 (0x20) [0x10] 0x40 (0x10) [0x08] –10 0x20 (0x08) [0x04] 0x10 –20 (0x04) [0x02] 0x08 (0x02) [0x01] 0x04 –30 (0x01) [0x00] 0x02 (0x00) 0x01 –40 –50 0x00 –60 –70 AD5110 (AD5112) [AD5114] –80 10k 100k FREQUENCY (Hz) Figure 23. ...

Page 17

Data Sheet 0.35 0.30 0.25 0.20 0.15 0.10 0.05 0 –0.05 –0.10 – TIME (µs) Figure 29. 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) ...

Page 18

AD5110/AD5112/AD5114 TEST CIRCUITS Figure 35 to Figure 40 define the test conditions used in the Specifications section. NC DUT CONNECT Figure 35. Resistor Position Nonlinearity Error (Rheostat Operation: R-INL, R-DNL) ...

Page 19

Data Sheet THEORY OF OPERATION The AD5110/AD5112/AD5114 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 ...

Page 20

AD5110/AD5112/AD5114 INPUT SHIFT REGISTER For the AD5110/AD5112/AD5114, the input shift register is 16 bits wide (see Figure 2). The 16-bit word consists of five unused bits (should be set to zero), followed by three control bits, and eight RDAC data ...

Page 21

Data Sheet WRITE OPERATION When writing to the AD5110/AD5112/AD5114, the user must begin with a start command followed by an address byte ( 0), after which the AD5110/AD5112/AD5114 acknowledge that it is prepared to receive data by pulling ...

Page 22

AD5110/AD5112/AD5114 1 SCL SDA START BY MASTER SERIAL BUS ADDRESS BYTE 1 SCL 1 SDA 0 0 START BY MASTER SERIAL BUS ADDRESS BYTE SCL (CONTINUED) SDA (CONTINUED) SCL (CONTINUED) SDA (CONTINUED) SCL (CONTINUED) SDA (CONTINUED) 9 ...

Page 23

Data Sheet EEPROM WRITE ACKNOWLEGDE POLLING After each write operation to the EEPROM, an internal write cycle begins. The interface of the device is disabled. To determine if the internal write cycle is complete and the I ...

Page 24

... AD5110/AD5112/AD5114 RDAC ARCHITECTURE To achieve optimum performance, Analog Devices, Inc., has patented the RDAC segmentation architecture for all the digital potentiometers. In particular, the AD5110/AD5112/AD5114 employ a two-stage segmentation approach as shown in Figure 46. The AD5110/AD5112/AD5114 designed with the transmission gate CMOS topology and with the gate voltage derived from V ...

Page 25

Data Sheet 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 also gives a maximum of 8% absolute resistance error ...

Page 26

AD5110/AD5112/AD5114 TERMINAL VOLTAGE OPERATING RANGE The AD5110/AD5112/AD5114 are designed with internal ESD diodes for protection. These diodes also set the voltage boundary of the terminal operating voltages. Positive signals present on Terminal A, Terminal B, or Terminal W that exceed ...

Page 27

... AD5114BCPZ10-500R7 10 32 AD5114BCPZ10-1-RL7 10 32 AD5114BCPZ80-RL7 80 32 AD5114BCPZ80-500R7 80 32 AD5114BCPZ80-1-RL7 80 32 EVAL-AD5110SDZ RoHS Compliant Part. 2 The EVAL-AD5110SDZ has kΩ. AB 1.70 1.60 1.50 2.00 BSC SQ 5 EXPOSED PAD 0.425 0.350 0.275 4 TOP VIEW BOTTOM VIEW FOR PROPER CONNECTION OF THE EXPOSED PAD, REFER TO ...

Page 28

... AD5110/AD5112/AD5114 NOTES refers to a communications protocol originally developed by Philips Semiconductors (now NXP Semiconductors). ©2011–2012 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D09582-0-11/12(B) Rev Page Data Sheet ...

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