Datasheet > ADS131M03

ADS131M03

更新时间： 2022-06-24 15:39:41

品牌	Logo	应用领域
德州仪器 - TI		/
页数	文件大小	规格书
98页	3162K
描述
ADS131M03 3-Channel, Simultaneously-Sampling, 24-Bit, Delta-Sigma ADC

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ADS131M03 数据手册

ADS131M03

SBAS889A – JANUARY 2020 – REVISED APRIL 2021

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5 Pin Configuration and Functions

AVDD

DVDD

AGND

AIN0P

DGND

CAP

CLKIN

DIN

AIN0P

AIN0N

AIN1N

AIN0N

AIN1N

CLKIN

DIN

Exposed Thermal

Pad on Underside

DOUT

SCLK

DRDY

Connect to AGND

AIN1P

AIN2P

AIN1P

AIN2P

DOUT

SCLK

DRDY

AIN2N

11 SYNC / RESET

Figure 5-2. PW Package, 20-Pin TSSOP, Top View

Figure 5-1. RUK Package, 20-Pin WQFN, Top View

Table 5-1. Pin Functions

NO.

I/O

DESCRIPTION⁽¹⁾

NAME

AGND

WQFN

TSSOP

Supply

Analog ground

AIN0N

AIN0P

AIN1N

AIN1P

AIN2N

AIN2P

AVDD

Analog input Negative analog input 0

Analog input Positive analog input 0

Analog input Negative analog input 1

Analog input Positive analog input 1

Analog input Negative analog input 2

Analog input Positive analog input 2

Supply

Analog supply. Connect a 1-µF capacitor to AGND.

Digital low-dropout (LDO) regulator output.

Connect a 220-nF capacitor to DGND.

CAP

Analog output

CLKIN

7, 8

Digital input

Supply

Master clock input

Chip select; active low

Digital ground

DGND

DIN

Digital input

Serial data input

DOUT

DRDY

DVDD

Digital output Serial data output

Digital output Data ready; active low

Supply

—

Digital I/O supply. Connect a 1-µF capacitor to DGND.

9, 10

Leave unconnected

SCLK

Digital input

—

Serial data clock

SYNC/RESET

Thermal pad

Conversion synchronization or system reset; active low

Thermal pad; connect to AGND

—

(1) See the Unused Inputs and Outputs section for details on how to connect unused pins.

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