AD2S83
PIN FUNCTION DESCRIPTIONS
ABSOLUTE MAXIMUM RATINGS1 (with respect to GND)
2
+VS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +13 V dc
2
P
in
–VS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –13 V dc
Nos. Mnemonic
Description
+VL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +VS
Reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +13 V to –VS
SIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +13 V to –VS
COS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +13 V to –VS
Any Logical Input . . . . . . . . . . . . . . . . . . –0.4 V dc to +VL dc
Demodulator Input . . . . . . . . . . . . . . . . . . . . . . . +13 V to –VS
Integrator Input . . . . . . . . . . . . . . . . . . . . . . . . . . +13 V to –VS
VCO Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +13 V to –VS
Power Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . 800 mW
Operating Temperature
1
2
3
4
5
6
7
8
DEMOD O/P
REFERENCE I/P
AC ERROR O/P
COS
Demodulator Output
Reference Signal Input
Ratio Multiplier Output
Cosine Input
ANALOG GND
SIGNAL GND
SIN
Power Ground
Resolver Signal Ground
Sine Input
+VS
Positive Power Supply
Parallel Output Data
Logic Power Supply
Industrial (AP, IP) . . . . . . . . . . . . . . . . . . . –40°C to +85°C
Storage Temperature . . . . . . . . . . . . . . . . . . –65°C to +150°C
Lead Temperature (Soldering, 10 sec) . . . . . . . . . . . . . 300°C
10–25 DB1–DB16
26
27
+VL
ENABLE
Logic HI—Output Data Pins in
High Impedance State
Logic LO—Presents Active Data
to the Output Pins
CAUTION
1Absolute Maximum Ratings are those values beyond which damage to the device
may occur.
2Correct polarity voltages must be maintained on the +VS and –VS pins.
28
BYTE SELECT
Logic HI—Most Significant Byte to
DB1–DB8
Logic LO—Least Significant Byte
RECOMMENDED OPERATING CONDITIONS
Power Supply Voltage (+VS, –VS) . . . . . . . . . . 12 V dc 5%
Power Supply Voltage VL . . . . . . . . . . . . . . . . . +5 V dc 10%
Analog Input Voltage (SIN and COS) . . . . . . . 2 V rms 10%
Analog Input Voltage (REF) . . . . . . . . . . . . . . 1 V to 8 V peak
Signal and Reference Harmonic Distortion . . . . . . 10% (max)
Phase Shift Between Signal and Reference . . . 10 Degrees (max)
Ambient Operating Temperature Range
to DB1–DB8
30
31
INHIBIT
Logic LO Inhibits Data Transfer
to Output Latches
DIGITAL GND
Digital Ground
32, 33 SC2–SC1
Select Converter Resolution
Industrial (AP, IP) . . . . . . . . . . . . . . . . . . . –40°C to +85°C
34
DATA LOAD
Logic LO DB1–DB16 Inputs
Logic HI DB1–DB16 Outputs
PIN CONFIGURATION
35
36
COMPLEMENT
Active Logic LO
BUSY
Converter Busy, Data not Valid
While Busy HI
37
38
DIRECTION
Logic State Defines Direction of
Input Signal Rotation
RIPPLE CLOCK
Positive Pulse When Converter Output
Changes from 1s to All 0s or Vice Versa
4
6
5
3
2
1
44 43 42 41 40
39
40
41
42
43
44
–VS
Negative Power Supply
VCO Input
PIN 1
39
38
37
36
35
34
7
8
9
–V
S
SIN I/P
+V
IDENTIFIER
VCO I/P
VCO O/P
RIPPLE CLOCK
DIRECTION
BUSY
S
VCO Output
NC
INTEGRATOR O/P Integrator Output
(MSB) DB1 10
DB2 11
COMP
INTEGRATOR I/P
DEMOD I/P
Integrator Input
AD2S83
TOP VIEW
(Not to Scale)
DB3
12
DB4 13
DATA LOAD
Demodulator Input
33 SC1
32 SC2
14
15
16
17
DB5
DB6
DB7
DB8
31 DIGITAL GND
30
INHIBIT
29 NC
19
26
27 28
18
20 21 22 23 24 25
NC = NO CONNECT
CAUTION
ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily
accumulate on the human body and test equipment and can discharge without detection. Although
the AD2S83 feature proprietary ESD protection circuitry, permanent damage may occur on devices
subjected to high-energy electrostatic discharges. Therefore, proper ESD precautions are
recommended to avoid performance degradation or loss of functionality.
WARNING!
ESD SENSITIVE DEVICE
REV. E
–5–
ADI [ ADI ]
