AD9694 View Datasheet(PDF) - Analog Devices

Part Name

Description

View to exact match

AD9694

14-Bit, 500 MSPS JESD204B, Quad Analog-to-Digital Converter

Analog Devices 

AD9694

PIN CONFIGURATION AND FUNCTION DESCRIPTIONS

Data Sheet

AVDD3 1

VIN–A 2

VIN+A 3

AVDD2 4

AVDD2 5

AVDD3 6

VIN+B 7

VIN–B 8

AVDD2 9

AVDD1 10

AVDD1 11

VCM_AB 12

DVDD 13

DGND 14

DRVDD2 15

PDWN/STBY 16

FD_A 17

FD_B 18

AD9694

TOP VIEW

(Not to Scale)

54 AVDD3

53 VIN–C

52 VIN+C

51 AVDD2

50 AVDD2

49 AVDD3

48 VIN+D

47 VIN–D

46 AVDD2

45 AVDD1

44 AVDD1

43 VCM_CD/VREF

42 DVDD

41 DGND

40 SPIVDD

39 CSB

38 SCLK

37 SDIO

NOTES

1. EXPOSED PAD. ANALOG GROUND. THE EXPOSED THERMAL PAD ON THE BOTTOM OF THE PACKAGE

PROVIDES THE GROUND REFERENCE FOR AVDDx, SPIVDD, DVDD, DRVDD1, AND DRVDD2.

THIS EXPOSED PAD MUST BE CONNECTED TO GROUND FOR PROPER OPERATION.

Figure 5. Pin Configuration (Top View)

Table 10. Pin Function Descriptions

Pin No.

Mnemonic

0

AGND/EPAD

1, 6, 49, 54

2, 3

4, 5, 9, 46, 50, 51, 55, 72

7, 8

10, 11, 44, 45, 56, 57, 58, 59,

62, 68, 69, 70, 71

12

AVDD3

VIN−A, VIN+A

AVDD2

VIN+B, VIN−B

AVDD1

VCM_AB

13, 42

14, 41

15

16

DVDD

DGND

DRVDD2

PDWN/STBY

17, 18, 35, 36

19

20

FD_A, FD_B, FD_D, FD_C

SYNCINB−AB

SYNCINB+AB

Type

Ground

Supply

Input

Supply

Input

Supply

Description

Exposed Pad. Analog Ground. The exposed thermal pad on

the bottom of the package provides the ground reference for

AVDDx, SPIVDD, DVDD, DRVDD1, and DRVDD2. This exposed

pad must be connected to ground for proper operation.

Analog Power Supply (2.5 V Nominal).

ADC A Analog Input Complement/True.

Analog Power Supply (1.8 V Nominal).

ADC B Analog Input True/Complement.

Analog Power Supply (0.975 V Nominal).

Output

Supply

Common-Mode Level Bias Output for Analog Input Channel A

and Channel B.

Digital Power Supply (0.975 V Nominal).

Ground

Ground Reference for DVDD and SPIVDD.

Supply

Digital Power Supply for JESD204B PLL (1.8 V Nominal).

Input

Output

Input

Input

Power-Down Input (Active High). The operation of this pin

depends on the SPI mode and can be configured as power-

down or standby. Requires external 10 kΩ pull-down resistor.

Fast Detect Outputs for Channel A, Channel B, Channel C, and

Channel D.

Active Low JESD204B LVDS Sync Input Complement for

Channel A and Channel B.

Active Low JESD204B LVDS/CMOS Sync Input True for Channel A

and Channel B.

Rev. 0 | Page 12 of 101

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