AD5174BRMZ-10 Analog Devices Inc, AD5174BRMZ-10 Datasheet
AD5174BRMZ-10
Specifications of AD5174BRMZ-10
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AD5174BRMZ-10 Summary of contents
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FEATURES Single-channel, 1024-position resolution 10 kΩ nominal resistance 50-times programmable (50-TP) wiper memory Rheostat mode temperature coefficient: 35 ppm/°C 2 5.5 V single-supply operation ±2 ±2.75 V dual-supply operation for ac or bipolar operations SPI-compatible interface ...
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AD5174 TABLE OF CONTENTS Features .............................................................................................. 1 Applications....................................................................................... 1 Functional Block Diagram .............................................................. 1 General Description ......................................................................... 1 Revision History ............................................................................... 2 Specifications..................................................................................... 3 Electrical Characteristics............................................................. 3 Interface Timing Specifications.................................................. 4 Absolute Maximum Ratings............................................................ 6 Thermal Resistance ...................................................................... 6 ESD ...
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SPECIFICATIONS ELECTRICAL CHARACTERISTICS Table 1. Parameter DC CHARACTERISTICS—RHEOSTAT MODE Resolution 2, 3 Resistor Integral Nonlinearity 2 Resistor Differential ...
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AD5174 Parameter 4, 10 DYNAMIC CHARACTERISTICS Bandwidth Total Harmonic Distortion Resistor Noise Density 1 Typical specifications represent average readings at 25° Resistor position nonlinearity error (R-INL) is the deviation from an ideal value measured between the maximum resistance ...
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Shift Register and Timing Diagrams CONTROL BITS SCLK SYNC DIN SDO SCLK SYNC DIN SDO DB9 (MSB ...
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AD5174 ABSOLUTE MAXIMUM RATINGS T = 25°C, unless otherwise noted. A Table 3. Parameter V to GND GND GND A W Digital Input and Output Voltage to ...
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PIN CONFIGURATION AND FUNCTION DESCRIPTIONS SYNC 10 DD AD5174 SCLK DIN TOP VIEW SDO SS (Not to Scale) EXT_CAP 5 GND 6 Figure 5. MSOP ...
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AD5174 TYPICAL PERFORMANCE CHARACTERISTICS 0.8 +25°C –40°C 0.6 +125°C 0.4 0.2 0 –0.2 –0.4 –0.6 0 128 256 384 512 640 CODE (Decimal) Figure 7. R-INL vs. Code vs. Temperature 0.4 +25°C –40°C 0.3 +125°C 0.2 0.1 0 –0.1 –0.2 ...
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V – 100 1k 10k 100k FREQUENCY (Hz) Figure 13. Bandwidth vs. Frequency vs. Code ...
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AD5174 1.0 0.5 0 –0.5 –1.0 –1.5 – TIME (µs) Figure 19. Digital Feedthrough 0.006 0.005 0.004 0.003 0.002 0.001 0 –0.001 ±2. 200µA AW –0.002 ...
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TEST CIRCUITS Figure 21 to Figure 25 define the test conditions used in the Specifications section. DUT Figure 21. Resistor Position Nonlinearity Error (Rheostat Operation; R-INL, R-DNL CODE = 0x00 DUT I ...
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AD5174 THEORY OF OPERATION The AD5174 is designed to operate as a true variable resistor for analog signals within the terminal voltage range of V < The RDAC register contents determine the resistor wiper DD position. The RDAC ...
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RDAC AND 50-TP READ OPERATION A serial data output SDO pin is available for readback of the internal RDAC register or 50-TP memory contents. The contents of the RDAC register can be read back through SDO by using Command 2 ...
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AD5174 SHUTDOWN MODE The AD5174 can be shut down by executing the software shutdown command, Command 9 (see Table 6), and setting the LSB to 1. This feature places the RDAC in a zero-power- consumption state where Terminal A is ...
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Table 10. Memory Map Command Number … … … … … … … … … … … ...
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AD5174 RDAC ARCHITECTURE To achieve optimum performance, Analog Devices, Inc., has patented the RDAC segmentation architecture for all the digital potentiometers. In particular, the AD5174 employs a three-stage segmentation approach as shown in Figure 27. The AD5174 wiper switch is ...
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EXT_CAP CAPACITOR A 1 μF capacitor to V must be connected to the EXT_CAP SS pin, as shown in Figure 28, on power-up and throughout the operation of the AD5174. AD5174 50-TP MEMORY EXT_CAP BLOCK C1 1µ ...
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... AD5174 OUTLINE DIMENSIONS PIN 1 INDEX AREA 0.80 0.75 0.70 SEATING PLANE IDENTIFIER ORDERING GUIDE Model 1 R (kΩ) Resolution AB AD5174BRMZ-10 10 1,024 AD5174BRMZ-10-RL7 10 1,024 AD5174BCPZ-10-RL7 10 1,024 RoHS Compliant Part. 3.10 3.00 SQ 2.90 6 0.50 0.40 0.30 5 TOP VIEW BOTTOM VIEW 0.05 MAX 0.02 NOM ...
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NOTES Rev Page AD5174 ...
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AD5174 NOTES ©2010 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D08718-0-12/10(B) Rev Page ...