ADS4242 datasheet(10/97 Pages) TI1

Part #	ADS4242

Description	Dual-Channel, 12-/14-Bit, 65/125/160MSPS Ultralow-Power ADC

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Manufacturer	TI1 [Texas Instruments]

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33

DRVDD

DA6P

DA6M

DA4P

DA4M

DA2P

DA2M

DA0P

DA0M

NC

CTRL3

CTRL2

CTRL1

AVDD

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

DRVDD

DB4M

DB4P

DB6M

DB6P

DB8M

DB8P

DB10M

DB10P

DB12M

DB12P

RESET

SCLK

SDATA

SEN

AVDD

ThermalPad

(ConnectedtoDRGND)

ADS4222, ADS4225, ADS4226

ADS4242, ADS4245, ADS4246

SBAS533

– MARCH 2011

www.ti.com

RGC PACKAGE(3)

QFN-64

(TOP VIEW)

(3) The PowerPAD is connected to DRGND.

NOTE: NC = do not connect.

Figure 3. ADS4242/ADS4245/ADS4246 LVDS Pinout

Pin Descriptions (LVDS Mode)

PIN NAME

PIN NUMBER

# OF PINS

FUNCTION

DESCRIPTION

AVDD

16, 22, 33, 34

4

Input

Analog power supply

17, 18, 21, 24, 27, 28,

AGND

8

Input

Analog ground

31, 32

CLKP

25

1

Input

Differential clock positive input

CLKM

26

1

Input

Differential clock negative input

INP_A

29

1

Input

Differential analog positive input, channel A

INM_A

30

1

Input

Differential analog negative input, channel A

INP_B

19

1

Input

Differential analog positive input, channel B

INM_B

20

1

Input

Differential analog negative input, channel B

This pin outputs the common-mode voltage (0.95V) that can be used externally to

VCM

23

1

Output

bias the analog input pins

10

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Product Folder Link(s): ADS4222 ADS4225 ADS4226 ADS4242 ADS4245 ADS4246

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