COMBOSMARTMETER datasheet(10/60 Pages) TI1

10 / 60 page

ADS131E04

ADS131E06

ADS131E08

SBAS561A – JUNE 2012 – REVISED APRIL 2013

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PIN ASSIGNMENTS (continued)

NAME

TERMINAL

FUNCTION

DESCRIPTION

GPIO1

Digital input/output

General-purpose input/output pin

GPIO2

Digital input/output

General-purpose input/output pin

GPIO3

Digital input/output

General-purpose input/output pin

GPIO4

Digital input/output

General-purpose input/output pin

IN1N(1)

Analog input

Differential analog negative input 1

IN1P(1)

Analog input

Differential analog positive input 1

IN2N(1)

Analog input

Differential analog negative input 2

IN2P(1)

Analog input

Differential analog positive input 2

IN3N(1)

Analog input

Differential analog negative input 3

IN3P(1)

Analog input

Differential analog positive input 3

IN4N(1)

Analog input

Differential analog negative input 4

IN4P(1)

Analog input

Differential analog positive input 4

Differential analog negative input 5

IN5N(1)

Analog input

(ADS131E06 and ADS131E08 only)

IN5P(1)

Analog input

Differential analog positive input 5 (ADS131E06 and ADS131E08 only)

Differential analog negative input 6

IN6N(1)

Analog input

(ADS131E06 and ADS131E08 only)

IN6P(1)

Analog input

Differential analog positive input 6 (ADS131E06 and ADS131E08 only)

IN7N(1)

Analog input

Differential analog negative input 7 (ADS131E08 only)

IN7P(1)

Analog input

Differential analog positive input 7 (ADS131E08 only)

IN8N(1)

Analog input

Differential analog negative input 8 (ADS131E08 only)

IN8P(1)

Analog input

Differential analog positive input 8 (ADS131E08 only)

27, 29, 62, 64

—

No connection, leave floating

OPAMPN

Analog

Op amp inverting input

OPAMPP

—

Op amp noninverting input

OPAMPOUT

Analog

Op amp output

PWDN

Digital input

Power-down; active low

RESET

Digital input

System reset; active low

RESV1

Digital input

Reserved for future use; must tie to logic low (DGND)

SCLK

Digital input

SPI clock

START

Digital input

Start conversion

TESTN(1)

Analog input/output

Internal test signal, negative signal

TESTP(1)

Analog input/output

Internal test signal, positive signal

VCAP1

Analog input/output

Analog bypass capacitor

VCAP2

—

Analog bypass capacitor

VCAP3

—

Analog bypass capacitor

VCAP4

Analog output

Analog bypass capacitor

VREFN

Analog input

Negative reference voltage

VREFP

Analog input/output

Positive reference voltage

(1)

Connect unused terminals to AVDD.

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Product Folder Links: ADS131E04 ADS131E06 ADS131E08

COMBOSMARTMETER 数据表(PDF) 10 Page - Texas Instruments

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COMBOSMARTMETER 数据表(PDF) 10 Page - Texas Instruments

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