AD2S80A. 2S80TD Datasheet

2S80TD AD2S80A. Datasheet pdf. Equivalent

2S80TD Datasheet
Recommendation 2S80TD Datasheet
Part 2S80TD
Description AD2S80A
Feature 2S80TD; a Variable Resolution, Monolithic Resolver-to-Digital Converter AD2S80A FEATURES Monolithic (BiMO.
Manufacture Analog Devices
Datasheet
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Analog Devices 2S80TD
a
Variable Resolution, Monolithic
Resolver-to-Digital Converter
AD2S80A
FEATURES
Monolithic (BiMOS ll) Tracking R/D Converter
40-Lead DIP Package
44-Terminal LCC Package
10-,12-,14-, and 16-Bit Resolution Set by User
Ratiometric Conversion
Low Power Consumption: 300 mW Typ
Dynamic Performance Set by User
High Max Tracking Rate 1040 RPS (10 Bits)
Velocity Output
Industrial Temperature Range Versions
Military Temperature Range Versions
ESD Class 2 Protection (2,000 V Min)
/883 B Parts Available
APPLICATIONS
DC Brushless and AC Motor Control
Process Control
Numerical Control of Machine Tools
Robotics
Axis Control
Military Servo Control
GENERAL DESCRIPTION
The AD2S80A is a monolithic 10-, 12-, 14-, or 16-bit tracking
resolver-to-digital converter contained in a 40-lead DIP or 44-
terminal LCC ceramic package. It is manufactured on a BiMOS
II process that combines the advantages of CMOS logic and
bipolar high accuracy linear circuits on the same chip.
The converter allows users to select their own resolution and dynamic
performance with external components. This allows the users great
flexibility in defining the converter that best suits their system
requirements. The converter allows users to select the resolution
to be 10, 12, 14, or 16 bits and to track resolver signals rotating
at up to 1040 revs per second (62,400 rpm) when set to 10-bit
resolution.
The AD2S80A converts resolver format input signals into a
parallel natural binary digital word using a ratiometric tracking
conversion method. This ensures high-noise immunity and toler-
ance of lead length when the converter is remote from the resolver.
The 10-, 12-, 14- or 16-bit output word is in a three-state digital
logic available in 2 bytes on the 16 output data lines. BYTE
SELECT, ENABLE and INHIBIT pins ensure easy data trans-
fer to 8- and 16-bit data buses, and outputs are provided to
allow for cycle or pitch counting in external counters.
An analog signal proportional to velocity is also available and
can be used to replace a tachogenerator.
The AD2S80A operates over 50 Hz to 20,000 Hz reference
frequency.
REV. D
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
which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Analog Devices.
FUNCTIONAL BLOCK DIAGRAM
SIN I/P
SIG GND
COS I/P
ANALOG
GND
RIPPLE
CLK
DATA
LOAD
+12V
–12V
AD2S80A
A1 A3
SEGMENT
SWITCHING
A2
R-2R
DAC
PHASE
SENSITIVE
DETECTOR
16-BIT UP/DOWN COUNTER
VCO DATA
TRANSFER
LOGIC
OUTPUT DATA LATCH
INTEGRATOR
O/P
VCO I/P
16 DATA BITS
PRODUCT HIGHLIGHTS
Monolithic. A one chip solution reduces the package size
required and increases the reliability.
Resolution Set by User. Two control pins are used to select
the resolution of the AD2S80A to be 10, 12, 14, or 16 bits allowing
the user to use the AD2S80A with the optimum resolution for
each application.
Ratiometric Tracking Conversion. Conversion technique
provides continuous output position data without conversion
delay and is insensitive to absolute signal levels. It also provides
good noise immunity and tolerance to harmonic distortion on
the reference and input signals.
Dynamic Performance Set by the User. By selecting exter-
nal resistor and capacitor values the user can determine bandwidth,
maximum tracking rate and velocity scaling of the converter to
match the system requirements. The external components
required are all low cost preferred value resistors and capacitors,
and the component values are easy to select using the simple
instructions given.
Velocity Output. An analog signal proportional to velocity is
available and is linear to typically one percent. This can be used
in place of a velocity transducer in many applications to provide
loop stabilization in servo controls and velocity feedback data.
Low Power Consumption. Typically only 300 mW.
Military Product. The AD2S80A is available processed in
accordance with MIL-STD-883B, Class B.
MODELS AVAILABLE
Information on the models available is given in the section
“Ordering Information.”
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
www.analog.com
©Analog Devices, Inc., 1986–2015



Analog Devices 2S80TD
AD2S80A* Product Page Quick Links
Last Content Update: 11/01/2016
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Documentation
Application Notes
• AN-203: Using the AD2S80 Series Resolver-to-Digital
Converters as Control Transformers
• AN-234: Digital Resolver Integration
• AN-252: Using the AD2S80 Series Resolver to Digital
Converters with Synchro's; Solid State Scott-T Circuit.
• AN-263: Resolver to Digital Conversion; Simple
Alternative to Optical Shaft Encoders
• AN-264: Dynamic Characteristics of Tracking Converter
• AN-265: Circuit Applications of the AD2S80 and AD2S81
Resolver to Digital
• AN-266: Passive Component Selection and Dynamic
Modeling for the AD2S80 Series Resolver to Digital
Converter
Data Sheet
• AD2S80A: Errata Sheet
• AD2S80A: Variable Resolution, Monolithic Resolver-to-
Digital Converter Data Sheet
• AD2S81A/AD2S82A: Variable Resolution, Monolithic
Resolver-to-Digital Converters Data Sheet
Reference Materials
Technical Articles
• DSP Motor Control in Domestic Appliance Applications
• Single Chip DSP Motor Control Systems Catching on in
Home Appliances
Design Resources
• AD2S80A Material Declaration
• PCN-PDN Information
• Quality And Reliability
• Symbols and Footprints
Discussions
View all AD2S80A EngineerZone Discussions
Sample and Buy
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Technical Support
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number
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Analog Devices 2S80TD
AD2S80A–SPECIFICATIONS (typical at 25؇C unless otherwise noted)
Parameter
SIGNAL INPUTS
Frequency
Voltage Level
Input Bias Current
Input Impedance
Maximum Voltage
REFERENCE INPUT
Frequency
Voltage Level
Input Bias Current
Input Impedance
CONTROL DYNAMICS
Repeatability
Allowable Phase Shift
Tracking Rate
Bandwidth1
ACCURACY
Angular Accuracy
Monotonicity
Missing Codes (16-Bit Resolution)
VELOCITY SIGNAL
Linearity
Reversion Error
DC Zero Offset2
DC Zero Offset Tempco
Gain Scaling Accuracy
Output Voltage
Dynamic Ripple
Output Load
INPUT/OUTPUT PROTECTION
Analog Inputs
Analog Outputs
DIGITAL POSITION
Resolution
Output Format
Load
INHIBIT3
Sense
Time to Stable Data
ENABLE3
ENABLE Time
BYTE SELECT3
Sense
LOGIC LO
Time to Data Available
SHORT CYCLE INPUTS
SC1 SC2
00
01
10
11
Conditions
(Signals to Reference)
10 Bits
12 Bits
14 Bits
16 Bits
User Selectable
A, J, S
B, K, T
L, U
Guaranteed Monotonic
A, B, J, K, S, T
L, U
Over Full Range
Min
50
1.8
1.0
50
1.0
1.0
–10
1 mA Load
Mean Value
±8
Overvoltage Protection
Short Circuit O/P Protection
10, 12, 14, and 16
Bidirectional Natural Binary
± 5.6
Logic LO to Inhibit
Logic LO Enables Position
Output. Logic HI Outputs in
High Impedance State
MS Byte DB1–DB8,
LS Byte DB9–DB16
LS Byte DB1–DB8,
LS Byte DB9–DB16
Internally Pulled High
(100 k) to +VS
10 Bit
12 Bit
14 Bit
16 Bit
35
60
Typ
2.0
60
60
±1
±1
–22
±9
±8
±8
Max
20,000
2.2
150
8
20,000
8.0
150
1
+10
1040
260
65
16.25
Unit
Hz
V rms
nA
M
V pk
Hz
V pk
nA
M
LSB
Degrees
rps
rps
rps
rps
؎8 +1 LSB
؎4 +1 LSB
؎2 +1 LSB
4
1
؎3
±2
6
± 10
± 10.5
1.5
1.0
± 10.4
arc min
arc min
arc min
Codes
Code
% FSD
% FSD
mV
µV/°C
% FSD
V
% rms O/P
k
V
mA
3 LSTTL
600 ns
110 ns
140 ns
–2– REV. D





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