AD73460 Просмотр технического описания (PDF) - Analog Devices

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AD73460

Six-Input Channel Analog Front End

Analog Devices 

AD73460

Figure 24 details the dc-coupled input circuits for single-ended

operation respectively.

100⍀

VIN

0.047␮F

VINPx

VINNx

REFOUT

0.1␮F

REFCAP

VOLTAGE

REFERENCE

Figure 24. Example Circuit for Single-Ended Input

(DC Coupling)

Digital Interface

As there are a number of variations of sample rate and clock speeds

that can be used with the AD73460 in a particular application,

it is important to select the best combination to achieve the

desired performance. High speed serial clocks will read the data

from the AD73460 in a shorter time, giving more time for

processing at the expense of injecting some digital noise into the

circuit. Digital noise can also be reduced by connecting resistors

(typ <50 Ω) in series with the digital input and output lines.

The noise can be minimized by good grounding and layout.

Typically the best performance is achieved by selecting the slowest

sample rate and SCLK frequency for the required application, as

this will produce the least amount of digital noise.

OUTLINE DIMENSIONS

119-Lead Chip Scale Ball Grid Array (PBGA)

(B-119)

Dimensions shown in millimeters

14.00 BSC

A1

TOP VIEW

22.00

BSC

BOTTOM

VIEW

7.62 BSC

7654 321

1.27

BSC

0.84

REF

A

B

C

D

E

F

G

H 20.32

J BSC

K

L

M

N

P

R

T

U

3.50 MAX

2.15 NOM

DETAIL A

COPLANARITY

0.20

3.19

REF

0.70

0.60

0.50

SEATING

PLANE

DETAIL A

1.27

BSC

2.50 MAX

2.50

0.90

0.10

0.75

0.60

BALL DIAMETER

COMPLIANT TO JEDEC STANDARDS MS-028AA

Revision History

Location

Page

10/02—Data Sheet changed from REV. 0 to REV. A.

Edits to Note 1 of SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Edits to TIMING CHARACTERISTICS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Edits to ABSOLUTE MAXIMUM RATINGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Edits to ORDERING GUIDE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Updated OUTLINE DIMENSIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

–32–

REV. A

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