AD7002

–4–

REV. B

TERMINOLOGY

Absolute Group Delay

Absolute group delay is the rate of change of phase versus fre-

quency, d

θ/df. It is expressed in microseconds.

Bias Offset Error

This is the offset error (in LSBs) in the ADC section.

Differential Nonlinearity

This is the difference between the measured and the ideal

1 LSB change between any two adjacent codes in the DAC

or ADC.

Dynamic Range

Dynamic Range is the ratio of the maximum output signal to the

smallest output signal the converter can produce (1 LSB), ex-

an N-bit converter, the ratio is theoretically very nearly equal to

2

value is degraded by converter noise and inaccuracies in the

LSB weight.

Full-Scale Accuracy

This is the measure of the ADC full-scale error after the offset

has been adjusted out.

Gain Error

This is a measure of the output error between an ideal DAC and

the actual device output with all ls loaded after offset error has

been adjusted out and is expressed in LSBs. In the AD7002,

gain error is specified for the auxiliary section.

Gain Matching Between Channels

This is the gain matching between the ITx and QTx channel

and is expressed in dBs.

GMSK Spectrum Mask

This is the combined output spectrum of the I and Q analog

outputs when transmitting a random sequence of data bits on

the AD7002 transmit channel.

100

200

250

400

600

1800

4300

–3

–32

–35

–63

–71

–71

–63

FREQUENCY – kHz

–63

6500

AD7002 Transmit GMSK Spectrum Mask

ABSOLUTE MAXIMUM RATINGS

1

AGND to DGND . . . . . . . . . . . . . . . . . . . . –0.3 V to +0.3 V

Input Current to Any Pin Except Supplies

±10 mA

Operating Temperature Range

Industrial Plastic (A Version) . . . . . . . . . . . –40

°C to +85°C

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

°C to +150°C

Lead Temperature (Soldering, 10 secs) . . . . . . . . . +300

°C

Power Dissipation (Any Package) to +75

°C . . . . . . . 450 mW

Derates Above +75

°C by . . . . . . . . . . . . . . . . . . . . 10 mW/°C

NOTES

nent damage to the device. This is a stress rating only; functional operation of the

device at those or any other conditions above those listed in the operational sections

of this specifications is not implied. Exposure to absolute maximum rating

conditions for extended periods may affect device reliability.

PIN DESCRIPTION

AUX FLAG

AUX LATCH

AUX CLK

AUX DATA

MZERO

NC

Rx SLEEP1

TEST2

NC

Rx SLEEP2

CAL

Tx SLEEP

Tx DATA

CLK2

Tx CLK

DV

DGND

NC

CLK1

TEST1

NC

NC

33

32

31

30

29

28

27

26

25

24

23

1

2

3

4

5

6

7

8

9

10

11

PIN 1 IDENTIFIER

AD7002 PQFP

TOP VIEW

(Not to Scale)

NC = NO CONNECT

DD

ORDERING GUIDE

Temperature

Package

Package

Model

Range

Description

Option

AD7002AS –40

°C to +85°C Plastic Quad Flatpack S-44

WARNING!

ESD SENSITIVE DEVICE

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 AD7002 features 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.