AD2S44-TM12B Analog Devices Inc, AD2S44-TM12B Datasheet
AD2S44-TM12B
Specifications of AD2S44-TM12B
AD2S44TM12B
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AD2S44-TM12B Summary of contents
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... Antenna monitoring CNC machine tooling GENERAL DESCRIPTION The AD2S44 is a 14-bit dual channel, continuous tracking synchro/ resolver-to-digital converter. It has been designed specifically for applications where space, weight, and cost are at a premium. Each 32-lead hybrid device contains two independent Type II servo loop tracking converters ...
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... AD2S44 TABLE OF CONTENTS Features .............................................................................................. 1 Applications ....................................................................................... 1 General Description ......................................................................... 1 Functional Block Diagram .............................................................. 1 Table of Contents .............................................................................. 2 Revision History ............................................................................... 2 Specifications ..................................................................................... 3 Absolute Maximum Ratings ............................................................ 5 ESD Caution .................................................................................. 5 Pin Configuration and Function Descriptions ............................. 6 Theory of Operation ........................................................................ 7 Connecting the Converter ........................................................... 7 Channel Select ( ................................................................... 7 REVISION HISTORY 08/08—Rev Rev. A Updated Format .................................................................. Universal Changes to Specifications Section .................................................. 3 Changes to Absolute Maximum Ratings Section ...
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... ±40 μA 3 LSTTL loads Rev Page AD2S44 Test Conditions/Comments −55°C to +125°C −25°C to +85°C −55°C to +125°C Output coding parallel natural binary See the Ordering Information section Resistive tolerance ±2% See the Ordering Information section Resistive tolerance ±5% 179° ...
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... AD2S44 Parameter DATA TRANSFER Time to Data Stable (After Negative Edge Change of Level of A/B) Time to Data in High Impedance State (After Positive Edge of OE) Time for Repetitive Strobing of Selected Channel BUILT-IN TEST OUTPUT (BIT) Sense Drive Capability Error Condition Set Error Condition Cleared 1 Specified overtemperature range, − ...
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... Exposure to absolute −0 (minimum) maximum rating conditions for extended periods may affect 150°C device reliability. ESD CAUTION ±600 V dc ± ±600 V dc ± ±600 V dc ±600 V dc −65°C to +150°C −55°C to +125°C Rev Page AD2S44 ...
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... GND 24 – DB1 (MSB) to DB7 DB8 DB7 1 32 DB9 2 DB6 31 DB10 3 30 DB5 DB11 DB4 4 29 DB12 DB3 5 28 DB13 DB2 6 27 DB14 (LSB) DB1 (MSB AD2S44 TOP VIEW A/B – (Not to Scale) S BIT GND ( ( ( ( (B) S2 ( ( Figure 2 ...
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... THEORY OF OPERATION The AD2S44 operates on a tracking principle. The output digital word continually tracks the position of the synchro/resolver shaft without the need for external convert commands and status wait loops. As the transducer moves through a position equivalent to the least significant bit weighting, the output digital word is updated ...
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... The BIT may be driven to a logic low state if all signal voltages to the selected channel are lost. Any failure that causes the AD2S44 to fail to track the input synchro/resolver angles drives the BIT to a logic low. This may include, but is not limited to, acceleration conditions, poor supply voltage regulation, or excessive noise on the signal connections ...
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... S4 pins (no resistor is required on the S4 pins for synchro options) and add 3 kΩ extra per volt of reference in series with the R pins and the R pins. HI DYNAMIC PERFORMANCE θ Figure 6. Transfer Function of AD2S44 The transfer function of the converter is as follows: Open-loop transfer function + θ × 1 OUT a θ ...
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... AD2S44 K does not define maximum acceleration; it defines only the a error due to acceleration. The maximum acceleration of which the AD2S44 keeps track is approximate to 5 × about 800 revolutions/sec . K can be used to predict the output position error due to input a acceleration. For example, an acceleration of 50 revolutions/sec ...
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... All the standard options, and their option codes, are shown in Figure 11. For nonstandard configurations, contact Analog Devices. For example, the AD2S44–TM12B is the correct part number for a component that operates with 90 V signal, 115 V reference synchro format inputs and yields a ±4.0 arc minutes accuracy over the − ...
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... AD2S44 NOTES ©1989–2008 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D02947-0-8/08(A) Rev Page ...