AD2S83

–5–

REV. E

PIN FUNCTION DESCRIPTIONS

Nos.

Mnemonic

Description

1

DEMOD O/P

Demodulator Output

2

REFERENCE I/P

Reference Signal Input

3

AC ERROR O/P

Ratio Multiplier Output

4

COS

Cosine Input

5

ANALOG GND

Power Ground

6

SIGNAL GND

Resolver Signal Ground

7

SIN

Sine Input

Positive Power Supply

10–25 DB1–DB16

Parallel Output Data

26

Logic Power Supply

27

ENABLE

Logic HI—Output Data Pins in

High Impedance State

Logic LO—Presents Active Data

to the Output Pins

28

BYTE SELECT

Logic HI—Most Significant Byte to

DB1–DB8

Logic LO—Least Significant Byte

to DB1–DB8

30

INHIBIT

Logic LO Inhibits Data Transfer

to Output Latches

31

DIGITAL GND

Digital Ground

32, 33 SC2–SC1

Select Converter Resolution

34

DATA LOAD

Logic LO DB1–DB16 Inputs

Logic HI DB1–DB16 Outputs

35

COMPLEMENT

Active Logic LO

36

BUSY

Converter Busy, Data not Valid

While Busy HI

37

DIRECTION

Logic State Defines Direction of

Input Signal Rotation

38

RIPPLE CLOCK

Positive Pulse When Converter Output

Changes from 1s to All 0s or Vice Versa

39

Negative Power Supply

40

VCO I/P

VCO Input

41

VCO O/P

VCO Output

42

INTEGRATOR O/P

Integrator Output

43

INTEGRATOR I/P

Integrator Input

44

DEMOD I/P

Demodulator Input

ABSOLUTE MAXIMUM RATINGS

2

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +13 V dc

2

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –13 V dc

Power Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . 800 mW

Operating Temperature

Industrial (AP, IP) . . . . . . . . . . . . . . . . . . . –40

°C to +85°C

Storage Temperature . . . . . . . . . . . . . . . . . . –65

°C to +150°C

Lead Temperature (Soldering, 10 sec) . . . . . . . . . . . . . 300

°C

CAUTION

may occur.

RECOMMENDED OPERATING CONDITIONS

±12 V dc ± 5%

± 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

Industrial (AP, IP) . . . . . . . . . . . . . . . . . . . –40

°C to +85°C

PIN CONFIGURATION

9

10

11

12

13

7

8

16

17

14

15

21

44

3

4

5

642 41 40

43

35

36

37

38

39

33

34

31

32

29

30

RIPPLE CLOCK

DIRECTION

BUSY

COMP

DATA LOAD

SC1

SIN I/P

NC

(MSB) DB1

DB2

DB3

DB4

NC = NO CONNECT

DB5

DB6

DB7

DB8

SC2

DIGITAL GND

INHIBIT

NC

18 19 20 21 22 23 24 25 26 27 28

PIN 1

IDENTIFIER

TOP VIEW

(Not to Scale)

AD2S83

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