TMP114 datasheet(40/50 Pages) TI

Numer części	TMP114

Szczegółowy opis	TMP114 Ultra-Thin, 1.2-V to 1.8-V Supply, High Accuracy Digital Temperature Sensor with I2C Interface

PDF	50 Pages

Scroll/Zoom	100%

Producent	TI [Texas Instruments]

Strona internetowa	http://www.ti.com

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40 / 50 page

9.2.3 Application Curves

Temperature (

C)

-40

-25

-10

110 125

-1

-0.75

-0.5

-0.25

0.25

0.5

0.75

1.2 V Average

1.8 V Average

Figure 9-2. Average Temperature Accuracy

9.3 Equal I2C Pullup and Supply Voltage Application

VDD

GND

SDA

SCL

TMP114

0.1 µF

1.08 V to 1.98 V

1.2 kΩ

Controller

SDA

SCL

1.2 kΩ

Temperature

source

Figure 9-3. Equal I2C Pullup and Supply Voltage Application

9.3.1 Design Requirements

For this design example, use the parameters listed below.

Table 9-2. Design Parameters

Parameter

Value

Supply (VDD)

1.08 V to 1.98 V

SDA, SCL VPULLUP

VDD

SDA, SCL RPULLUP

1.2 kΩ

9.3.2 Detailed Design Procedure

The SDA and SCL pin voltage of the TMP114 can be the same as the supply voltage VDD. The accuracy of the

TMP114 is not affected by the pullup voltage.

TMP114

SNIS214A – JUNE 2021 – REVISED SEPTEMBER 2021

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