ADS1299_14 datasheet(9/66 Pages) TI1

Part #	ADS1299

Description	Low-Noise, 8-Channel, 24-Bit Analog Front-End for Biopotential Measurements

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Manufacturer	TI1 [Texas Instruments]

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48

47

46

45

44

43

42

41

40

39

38

37

36

35

34

33

DVDD

GPIO4

GPIO3

GPIO2

DOUT

GPIO1

DAISY_IN

SCLK

START

CLK

DIN

DGND

DRDY

CS

RESET

PWDN

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

IN8N

IN8P

IN7N

IN7P

IN6N

IN6P

IN5N

IN5P

IN4N

IN4P

IN3N

IN3P

IN2N

IN2P

IN1N

IN1P

ADS1299

www.ti.com

SBAS499A – JULY 2012 – REVISED AUGUST 2012

PIN CONFIGURATION

PAG PACKAGE

TQFP-64

(TOP VIEW)

PIN ASSIGNMENTS

NAME

TERMINAL

FUNCTION

DESCRIPTION

AVDD

19, 21, 22, 56

Supply

Analog supply

AVDD

59

Supply

Charge pump analog supply

AVDD1

54

Supply

Analog supply

AVSS

20, 23, 32, 57

Supply

Analog ground

AVSS

58

Supply

Charge pump analog ground

AVSS1

53

Supply

Analog ground

BIASIN

62

Analog input

Bias drive input to MUX

BIASINV

61

Analog input/output

Bias drive inverting input

BIASOUT

63

Analog output

Bias drive output

BIASREF

60

Analog input

Bias drive noninverting input

CS

39

Digital input

SPI chip select; active low

CLK

37

Digital input

Master clock input

CLKSEL

52

Digital input

Master clock select

DAISY_IN

41

Digital input

Daisy-chain input

DGND

33, 49, 51

Supply

Digital ground

DIN

34

Digital input

SPI data in

DOUT

43

Digital output

SPI data out

DRDY

47

Digital output

Data ready; active low

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