AD9265 Ver la hoja de datos (PDF) - Analog Devices

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componentes Descripción

Fabricante

AD9265

16-Bit, 125 MSPS/105 MSPS/80 MSPS, 1.8 V Analog-to-Digital Converter

Analog Devices 

Data Sheet

PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS

AD9265

SYNC 1

CLK+ 2

CLK– 3

AVDD 4

AVDD 5

OEB 6

DNC 7

DCO 8

D0 (LSB) 9

D1 10

D2 11

D3 12

PIN 1

INDICATOR

AD9265

PARALLEL

CMOS

TOP VIEW

(Not to Scale)

36 AVDD

35 DITHER

34 AVDD

33 SVDD

32 CSB

31 SCLK/DFS

30 SDIO/DCS

29 DRVDD

28 DNC

27 OR

26 D15 (MSB)

25 D14

NOTES

1. DNC = DO NOT CONNECT.

2. THE EXPOSED THERMAL PAD ON THE BOTTOM OF THE PACKAGE

PROVIDES THE ANALOG GROUND FOR THE INPUT. THIS EXPOSED

PAD MUST BE CONNECTED TO GROUND FOR PROPER OPERATION.

Figure 4. LFCSP Parallel CMOS Pin Configuration (Top View)

Table 8. Pin Function Descriptions (Parallel CMOS Mode)

Pin No.

Mnemonic

Type

Description

ADC Power Supplies

13, 20, 29

DRVDD

Supply

Digital Output Driver Supply (1.8 V Nominal).

4, 5, 34, 36, 45 AVDD

Supply

Analog Power Supply (1.8 V Nominal).

33

SVDD

Supply

SPI Input/Output Voltage.

7, 28, 39, 40

DNC

Do Not Connect.

0

AGND

Ground

Analog Ground. The exposed thermal pad on the bottom of the package provides

the analog ground for the input. This exposed pad must be connected to ground for

proper operation.

ADC Analog

42

VIN+

Input

Differential Analog Input Pin (+).

43

VIN−

Input

Differential Analog Input Pin (−).

38

VREF

Input/output Voltage Reference Input/Output.

37

SENSE

Input

Voltage Reference Mode Select. See Table 11 for details.

47

RBIAS

Input/output External Reference Bias Resistor.

46

VCM

Output

Common-Mode Level Bias Output for Analog Inputs.

2

CLK+

Input

ADC Clock Input—True.

3

CLK−

Input

ADC Clock Input—Complement.

Digital Input

1

SYNC

Input

Digital Synchronization Pin. Slave mode only.

Digital Outputs

9

D0 (LSB)

Output

CMOS Output Data.

10

D1

Output

CMOS Output Data.

11

D2

Output

CMOS Output Data.

12

D3

Output

CMOS Output Data.

14

D4

Output

CMOS Output Data.

15

D5

Output

CMOS Output Data.

16

D6

Output

CMOS Output Data.

17

D7

Output

CMOS Output Data.

18

D8

Output

CMOS Output Data.

Rev. C | Page 11 of 44

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