AD8403ARUZ1 Analog Devices Inc, AD8403ARUZ1 Datasheet
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AD8403ARUZ1
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AD8403ARUZ1 Summary of contents
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FEATURES 256-position variable resistance device Replaces potentiometers 1 kΩ, 10 kΩ, 50 kΩ, 100 kΩ Power shutdown—less than 5 µA 3-wire,SPI-compatible serial data input 10 MHz update data loading rate 2 5.5 V single-supply ...
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AD8400/AD8402/AD8403 TABLE OF CONTENTS Features .............................................................................................. 1 Applications....................................................................................... 1 General Description ......................................................................... 1 Functional Block Diagram .............................................................. 1 Revision History ............................................................................... 2 Specifications..................................................................................... 4 Electrical Characteristics—10 kΩ Version................................ 4 Electrical Characteristics—50 kΩ and 100 kΩ Versions......... 6 Electrical Characteristics—1 kΩ ...
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GENERAL DESCRIPTION (continued from Page 1) Each VR has its own VR latch that holds its programmed resistance value. These VR latches are updated from an SPI- compatible, serial-to-parallel shift register that is loaded from a standard 3-wire, serial-input digital ...
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AD8400/AD8402/AD8403 SPECIFICATIONS ELECTRICAL CHARACTERISTICS—10 KΩ VERSION ± 10 ± 10 Table 1. Parameter Symbol DC CHARACTERISTICS RHEOSTAT MODE (Specifications Apply to All VRs) 2 Resistor Differential NL ...
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Parameter Symbol 6, 10 DYNAMIC CHARACTERISTICS Bandwidth −3 dB BW_10 K Total Harmonic Distortion THD V Settling Time Resistor Noise Voltage e NWB 11 Crosstalk Typical represents average readings at 25°C and V 2 ...
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AD8400/AD8402/AD8403 ELECTRICAL CHARACTERISTICS—50 KΩ AND 100 KΩ VERSIONS ± 10 ± 10 Table 2. Parameter Symbol DC CHARACTERISTICS RHEOSTAT MODE (Specifications Apply to All VRs) 2 Resistor ...
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Parameter Symbol 6, 10 DYNAMIC CHARACTERISTICS Bandwidth −3 dB BW_50 K BW_100 K Total Harmonic Distortion THD V Settling Time t _50 _100 K S Resistor Noise Voltage e NWB e NWB 11 Crosstalk C T ...
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AD8400/AD8402/AD8403 ELECTRICAL CHARACTERISTICS—1 KΩ VERSION ± 10 ± 10 Table 3. Parameter DC CHARACTERISTICS RHEOSTAT MODE (Specifications Apply to All VRs) 2 Resistor Differential NL 2 Resistor ...
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Parameter 6, 10 DYNAMIC CHARACTERISTICS Bandwidth −3 dB Total Harmonic Distortion V Settling Time W Resistor Noise Voltage 11 Crosstalk 1 Typicals represent average readings at 25°C and V 2 Resistor position nonlinearity error R-INL is the deviation from an ...
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AD8400/AD8402/AD8403 ELECTRICAL CHARACTERISTICS—ALL VERSIONS ± 10 ± 10 Table 4. Parameter SWITCHING CHARACTERISTICS 2, 3 Input Clock Pulse Width Data Setup Time Data Hold Time 4 CLK ...
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ABSOLUTE MAXIMUM RATINGS T = 25°C, unless otherwise noted. A Table 5. Parameter V to GND GND Maximum Current Pulsed Continuous (R ≤ ...
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AD8400/AD8402/AD8403 PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS AD8400 GND TOP VIEW (Not to Scale) SDI CLK 4 5 Figure 6. AD8400 Pin Configuration Table 7. AD8400 Pin Function Descriptions ...
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Table 9. AD8403 Pin Function Descriptions Pin No. Mnemonic Description 1 AGND2 Analog Ground Terminal B RDAC Terminal A RDAC Wiper RDAC 2, Addr = 01 5 AGND4 Analog Ground 4. ...
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AD8400/AD8402/AD8403 TYPICAL PERFORMANCE CHARACTERISTICS 10kΩ 128 CODE (Decimal) Figure 9. Wiper to End Terminal Resistance vs. Code 5 80 ...
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SS = 184 UNITS 25° 40.0 42.5 45.0 47.5 50.0 52.5 55.0 57.5 60.0 62.5 WIPER RESISTANCE (Ω) Figure 15. 100 kΩ Wiper-Contact-Resistance Histogram 10 R (END-TO-END) ...
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AD8400/AD8402/AD8403 0.75 CODE = 158 UNITS 0.50 AVERAGE + 2 SIGMA 0.25 0 –0.25 AVERAGE – 2 SIGMA –0.50 –0.75 0 100 200 300 HOURS OF OPERATION AT 150°C Figure 21. Long-Term ...
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CODE = 25° 50kΩ 100kΩ 10 100 1k 10k FREQUENCY (Hz) Figure 27. Normalized Gain Flatness vs. Frequency (See Figure 43 25° ...
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AD8400/AD8402/AD8403 0 –10 –20 0 –45 – 25°C A WIPER SET AT HALF-SCALE 80 H 100k 200k 400k 1M FREQUENCY (Hz) Figure 33. 1 kΩ Gain and Phase vs. Frequency 100 V = ...
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TEST CIRCUITS DUT 1LSB = V+/256 Figure 37. Potentiometer Divider Nonlinearity Error (INL, DNL) NO CONNECT DUT Figure 38. Resistor Position Nonlinearity Error (Rheostat ...
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AD8400/AD8402/AD8403 THEORY OF OPERATION The AD8400/AD8402/AD8403 provide a single, dual, and quad channel, 256-position, digitally controlled variable resistor (VR) device. Changing the programmed VR setting is accomplished by clocking in a 10-bit serial data-word into the SDI (Serial Data Input) ...
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Like a mechanical potentiometer, RDAC is symmetrical. The resistance between the Wiper W and Terminal A also produces a digitally controlled complementary resistance, R these terminals are used, the B terminal can be tied to the wiper or left floating. ...
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AD8400/AD8402/AD8403 CS CLK D7 EN RDAC LATCH NO. 1 ADDR R A1 DEC D0 DO SDO A0 D7 SER AD8403 REG D7 SDI DI D0 RDAC LATCH NO SHDN DGND RS Figure 48. AD8403 Block Diagram ...
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DIGITAL PINS Figure 51. Equivalent ESD Protection Circuits 20 Ω Figure 52. Equivalent ESD Protection Circuit (Analog Pins) RDAC 10kΩ 120pF 90.4pF (DW/256) + 30pF C = ...
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AD8400/AD8402/AD8403 APPLICATIONS The digital potentiometer (RDAC) allows many of the applica- tions of a mechanical potentiometer to be replaced by a solid- state solution offering compact size and freedom from vibration, shock, and open contact problems encountered in hostile environments. ...
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FREQUENCY (Hz) Figure 56. Programmed Center Frequency Band-Pass Response –20 –40 –60 –80 100k 200k 20 Figure 57. Programmed Amplitude Band-Pass Response Rev. ...
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AD8400/AD8402/AD8403 OUTLINE DIMENSIONS 5.00 (0.1968) 4.80 (0.1890 6.20 (0.2440) 4.00 (0.1574) 5.80 (0.2284) 3.80 (0.1497 1.27 (0.0500) BSC 1.75 (0.0688) 1.35 (0.0532) 0.25 (0.0098) 0.10 (0.0040) 0.51 (0.0201) COPLANARITY 0.25 (0.0098) 0.31 (0.0122) SEATING 0.10 0.17 ...
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PIN 1 0.100 (2.54) BSC 0.060 (1.52) 0.210 (5.33) MAX 0.015 0.150 (3.81) (0.38) 0.015 (0.38) MIN 0.130 (3.30) 0.115 (2.92) SEATING PLANE 0.022 ...
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AD8400/AD8402/AD8403 ORDERING GUIDE Number of 1 Model Channels AD8400AR10 1 AD8400AR10-REEL 1 2 AD8400ARZ10 1 2 AD8400ARZ10-REEL 1 AD8400AR50 1 AD8400AR50-REEL 1 2 AD8400ARZ50 1 2 AD8400ARZ50-REEL 1 AD8400AR100 1 AD8400AR100-REEL 1 AD8400ARZ100 AD8400ARZ100-REEL 1 AD8400AR1 1 ...
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... AD8403ARZ100 4 2 AD8403ARZ100-REEL 4 AD8403AR1 4 AD8403AR1-REEL 4 AD8403ARU1 4 AD8403ARU1-REEL 4 2 AD8403ARUZ1 4 2 AD8403ARUZ1-REEL 4 2 AD8403ARZ1 4 2 AD8403ARZ1-REEL 4 AD8403EVAL 1 Non-lead-free parts have date codes in the format of either YWW or YYWW, and lead-free parts have date codes in the format of #YWW, where Y/YY is the year of production and WW is the work week. For example, a non-lead-free part manufactured in the 30 lead-free part has the date code of #530 ...
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AD8400/AD8402/AD8403 NOTES Rev Page ...
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NOTES AD8400/AD8402/AD8403 Rev Page ...
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AD8400/AD8402/AD8403 NOTES © 2005 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. C01092-0-10/05(D) Rev Page ...