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Analog Devices Semiconductor Electronic Components Datasheet

AD2S1210-EP Datasheet

10-Bit to 16-Bit R/D Converter

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Data Sheet
Variable Resolution, 10-Bit to 16-Bit R/D
Converter with Reference Oscillator
AD2S1210-EP
FEATURES
Complete monolithic resolver-to-digital converter
3125 rps maximum tracking rate (10-bit resolution)
±2.5 arc minutes of accuracy
10-/12-/14-/16-bit resolution, set by user
Parallel and serial 10-bit to 16-bit data ports
Absolute position and velocity outputs
System fault detection
Programmable fault detection thresholds
Differential inputs
Incremental encoder emulation
Programmable sinusoidal oscillator on board
Compatible with DSP and SPI interface standards
5 V supply with 2.3 V to 5 V logic interface
ENHANCED PRODUCT FEATURES
Supports defense and aerospace applications (AQEC standard)
Military temperature range: −55°C to +125°C
Controlled manufacturing baseline
1 assembly/test site
1 fabrication site
Product change notification
Qualification data available on request
APPLICATIONS
DC and ac servo motor control
Encoder emulation
Electric power steering
Electric vehicles
Integrated starter generators/alternators
Automotive motion sensing and control
GENERAL DESCRIPTION
The AD2S1210-EP is a complete 10-bit to 16-bit resolution
tracking resolver-to-digital converter, integrating an on-board
programmable sinusoidal oscillator that provides sine wave
excitation for resolvers.
The converter accepts 3.15 V p-p ± 27% input signals, in the range
of 2 kHz to 20 kHz on the sine and cosine inputs. A Type II
servo loop is employed to track the inputs and convert the input
sine and cosine information into a digital representation of the
input angle and velocity. The maximum tracking rate is 3125 rps.
Full details about this enhanced product, including theory of
operation, registers details, and applications information, are
available in the AD2S1210 data sheet, which should be
concluded in conjunction with this data sheet.
FUNCTIONAL BLOCK DIAGRAM
REFERENCE
PINS
CRYSTAL
EXCITATION
OUTPUTS
REFERENCE
OSCILLATOR
(DAC)
VOLTAGE
REFERENCE
INTERNAL
CLOCK
GENERATOR
SYNTHETIC
REFERENCE
AD2S1210-EP
INPUTS
FROM
RESOLVER
ADC
ADC
TYPE II
TRACKING LOOP
FAULT
DETECTION
FAULT
DETECTION
OUTPUTS
ENCODER
EMULATION
OUTPUTS
POSITION VELOCITY CONFIGURATION
REGISTER REGISTER
REGISTER
DATA I/O
MULTIPLEXER
DATA BUS OUTPUT
RESET
DATA I/O
Figure 1.
PRODUCT HIGHLIGHTS
1. Ratiometric tracking conversion. The Type II tracking loop
provides continuous output position data without
conversion delay. It also provides noise immunity and
tolerance of harmonic distortion on the reference and
input signals.
2. System fault detection. A fault detection circuit can sense
loss of resolver signals, out-of-range input signals, input
signal mismatch, or loss of position tracking. The fault
detection threshold levels can be individually programmed
by the user for optimization within a particular application.
3. signal range. The sine and cosine inputs can accept
differential input voltages of 3.15 V p-p ± 27%.
4. Programmable excitation frequency. Excitation frequency
is easily programmable to a number of standard frequencies
between 2 kHz and 20 kHz.
5. Triple format position data. Absolute 10-bit to 16-bit angular
position data is accessed via either a 16-bit parallel port or a
4-wire serial interface. Incremental encoder emulation is in
standard A-quad-B format with direction output available.
6. Digital velocity output. 10-bit to 16-bit signed digital
velocity accessed via either a 16-bit parallel port or a 4-wire
serial interface.
Rev. A
Document Feedback
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.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700 ©2010–2018 Analog Devices, Inc. All rights reserved.
Technical Support
www.analog.com


Analog Devices Semiconductor Electronic Components Datasheet

AD2S1210-EP Datasheet

10-Bit to 16-Bit R/D Converter

No Preview Available !

AD2S1210-EP
TABLE OF CONTENTS
Features .............................................................................................. 1
Enhanced Product Features ............................................................ 1
Applications....................................................................................... 1
General Description ......................................................................... 1
Functional Block Diagram .............................................................. 1
Product Highlights ........................................................................... 1
Revision History ............................................................................... 2
Specifications..................................................................................... 3
REVISION HISTORY
5/2018—Rev. 0 to Rev. A
Changes to Features Section............................................................ 1
Added Enhanced Product Features Section.................................. 1
Updated Outline Dimensions ....................................................... 14
Changes to Ordering Guide .......................................................... 14
6/2010—Revision 0: Initial Version
Data Sheet
Timing Specifications ...................................................................5
Absolute Maximum Ratings ............................................................7
ESD Caution...................................................................................7
Pin Configuration and Function Descriptions..............................8
Typical Performance Characteristics ........................................... 10
Outline Dimensions ....................................................................... 14
Ordering Guide .......................................................................... 14
Rev. A | Page 2 of 16


Part Number AD2S1210-EP
Description 10-Bit to 16-Bit R/D Converter
Maker Analog Devices
Total Page 16 Pages
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