EVAL-AD5142ADBZ Analog Devices, EVAL-AD5142ADBZ Datasheet
EVAL-AD5142ADBZ
Specifications of EVAL-AD5142ADBZ
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EVAL-AD5142ADBZ Summary of contents
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... 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. ...
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AD5122A/AD5142A TABLE OF CONTENTS Features .............................................................................................. 1 Applications ....................................................................................... 1 Functional Block Diagram .............................................................. 1 General Description ......................................................................... 1 Revision History ............................................................................... 2 Specifications ..................................................................................... 3 Electrical Characteristics—AD5122A ....................................... 3 Electrical Characteristics—AD5142A ....................................... 6 Interface Timing Specifications .................................................. 9 Shift ...
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Data Sheet SPECIFICATIONS ELECTRICAL CHARACTERISTICS—AD5122A otherwise noted. Table 2. Parameter DC CHARACTERISTICS—RHEOSTAT MODE (ALL RDACs) Resolution Resistor Integral ...
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AD5122A/AD5142A Parameter RESISTOR TERMINALS Maximum Continuous Current Terminal Voltage Range 5 Capacitance A, Capacitance B 3 Capacitance W 3 Common-Mode Leakage Current 3 DIGITAL INPUTS Input Logic 3 High Low Input Hysteresis 3 Input Current 3 Input Capacitance 3 DIGITAL ...
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Data Sheet Parameter DYNAMIC CHARACTERISTICS 9 Bandwidth Total Harmonic Distortion Resistor Noise Density V Settling Time W Crosstalk ( Analog Crosstalk Endurance 10 Data Retention 11 1 Typical values represent average readings at 25°C, V Resistor ...
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AD5122A/AD5142A ELECTRICAL CHARACTERISTICS—AD5142A otherwise noted. Table 3. Parameter DC CHARACTERISTICS—RHEOSTAT MODE (ALL RDACs) Resolution Resistor Integral Nonlinearity 2 ...
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Data Sheet Parameter RESISTOR TERMINALS Maximum Continuous Current Terminal Voltage Range 5 Capacitance A, Capacitance B 3 Capacitance W 3 Common-Mode Leakage Current 3 DIGITAL INPUTS Input Logic 3 High Low Input Hysteresis 3 Input Current 3 Input Capacitance 3 ...
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AD5122A/AD5142A Parameter DYNAMIC CHARACTERISTICS 9 Bandwidth Total Harmonic Distortion Resistor Noise Density V Settling Time W Crosstalk ( Analog Crosstalk Endurance 10 Data Retention 11 1 Typical values represent average readings at 25°C, V Resistor integral ...
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Data Sheet INTERFACE TIMING SPECIFICATIONS 5.5 V; all specifications T LOGIC Table 4. Parameter 1 Test Conditions/Comments f 2 Standard mode SCL Fast mode t Standard mode 1 Fast mode t Standard mode 2 Fast ...
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AD5122A/AD5142A SHIFT REGISTER AND TIMING DIAGRAMS DB15 (MSB CONTROL BITS t 2 SCL t 6 SDA DB8 DB7 ADDRESS BITS Figure 2. Input Shift Register Contents ...
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Data Sheet ABSOLUTE MAXIMUM RATINGS T = 25°C, unless otherwise noted. A Table 5. Parameter V to GND GND GND LOGIC GND A ...
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AD5122A/AD5142A PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS Table 7. 16-Lead LFCSP Pin Function Descriptions Pin No. Mnemonic Description 1 GND Ground Pin, Logic Ground Reference Terminal A of RDAC1 Wiper Terminal of RDAC1 ...
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Data Sheet Table 8. 16-Lead TSSOP Pin Function Descriptions Pin No. Mnemonic Description 1 INDEP Linear Gain Setting Mode at Power-Up. Each string resistor is loaded from its associated memory location. If INDEP is enabled, it cannot be disabled by ...
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AD5122A/AD5142A TYPICAL PERFORMANCE CHARACTERISTICS 0.5 0.4 0.3 0.2 0.1 0 –0.1 –0.2 –0.3 –0.4 –0.5 0 100 CODE (Decimal) Figure 6. R-INL vs. Code (AD5142A) 0.20 0.15 0.10 0.05 0 –0.05 –0.10 10kΩ, +125°C –0.15 10kΩ, +25°C 10kΩ, –40°C 100kΩ, ...
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Data Sheet 0.15 0.10 0.05 0 –0.05 –0.10 –0. CODE (Decimal) Figure 12. INL vs. Code (AD5122A) 450 400 350 300 250 200 150 100 50 0 – 100 150 CODE (Decimal) ...
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AD5122A/AD5142A 0 0x80, (0x40) 0x40, (0x20) –10 0x20, (0x10) –20 0x10, (0x08) 0x8, (0x04) –30 0x4, (0x02) 0x2, (0x01) 0x1, (0x00) –40 0x00 –50 AD5142A (AD5122A) –60 10 100 1k 10k 100k FREQUENCY (Hz) Figure 18. 10 kΩ Gain vs. ...
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Data Sheet 600 500 400 300 200 100 VOLTAGE (V) Figure 24. Incremental Wiper On Resistance vs ...
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AD5122A/AD5142A 0 10kΩ SHUTDOWN MODE ENABLED 100kΩ –20 –40 –60 –80 –100 –120 10 100 1k 10k FREQUECNY (Hz) Figure 30. Shutdown Isolation vs. Frequency 100k 1M 10M Rev Page ...
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Data Sheet TEST CIRCUITS Figure 32 to Figure 36 define the test conditions used in the Specifications section. NC DUT CONNECT Figure 32. Resistor Integral Nonlinearity Error (Rheostat Operation; R-INL, ...
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AD5122A/AD5142A THEORY OF OPERATION The AD5122A/AD5142A digital programmable potentiometers are designed to operate as true variable resistors for analog signals within the terminal voltage range of V < wiper position is determined by the RDAC register contents. The ...
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Data Sheet Table 10. Reduced Commands Operation Truth Table Control Bits[DB15:DB12] Bits[DB11:DB8] Command Number ...
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AD5122A/AD5142A ADVANCED CONTROL MODES The AD5122A/AD5142A digital potentiometers include a set of user programming features to address the wide number of applications for these universal adjustment devices (see Table 16 and Table 18). Key programming features include the following: • ...
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Data Sheet ±6 dB Increment and Decrement Instructions Two programming instructions produce logarithmic taper increment or decrement of the wiper position control by an individual potentiometer ganged potentiometer arrangement where all RDAC register positions are changed simultaneously. ...
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AD5122A/AD5142A Table 16. Advanced Command Operation Truth Table Command Bits[DB15:DB12] Command Number ...
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Data Sheet Table 18. Control Register Bit Descriptions Bit Name Description D0 RDAC register write protect 0 = wiper position frozen to value in EEPROM memory 1 = allows update of wiper position through digital interface (default) D1 EEPROM program ...
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... AD5122A/AD5142A RDAC ARCHITECTURE To achieve optimum performance, Analog Devices, Inc., has patented the RDAC segmentation architecture for all the digital potentiometers. In particular, the AD5122A/AD5142A a three-stage segmentation approach, as shown in Figure 37. The AD5122A/AD5142A wiper switch is designed with the transmission gate CMOS topology and with the gate voltage ...
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Data Sheet If the part is configured in linear gain setting mode, the resistance between Terminal W and Terminal A is directly proportional to the code loaded in the associate RDAC register. The general equations for this operation are AD5122A: ...
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AD5122A/AD5142A OUTLINE DIMENSIONS PIN 1 INDICATOR 0.80 0.75 0.70 SEATING PLANE 0.15 0.05 3.10 0.30 3.00 SQ 0.23 2.90 0.18 13 0.50 12 BSC EXPOSED 9 8 0.50 TOP VIEW BOTTOM VIEW 0.40 0.30 0.05 MAX 0.02 NOM COPLANARITY 0.08 ...
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... AD5142ABCPZ100-RL7 100 256 AD5142ABRUZ10 10 256 AD5142ABRUZ100 100 256 AD5142ABRUZ10-RL7 10 256 AD5142ABRUZ100-RL7 100 256 EVAL-AD5142ADBZ RoHS Compliant Part. 2 The evaluation board is shipped with the 10 kΩ R Interface Temperature Range I C −40°C to +125° −40°C to +125°C I ...
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AD5122A/AD5142A NOTES Rev Page Data Sheet ...
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Data Sheet NOTES Rev Page AD5122A/AD5142A ...
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... AD5122A/AD5142A NOTES I C refers to a communications protocol originally developed by Philips Semiconductors (now NXP Semiconductors). 2 ©2012 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D10939-0-12/12(A) Rev Page Data Sheet ...