TMP421 datasheet(9/38 Pages) TI2

Part #	TMP421

Description	TMP42x-Q1 ±1°C Remote and Local Temperature Sensor

PDF	38 Pages

Scroll/Zoom	100%

Manufacturer	TI2 [Texas Instruments]

Direct Link	https://www.ti.com

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9 / 38 page

V+(V)

4.5

3.0

3.5

4.0

5.5

5.0

2.5

500

450

400

350

300

250

200

150

100

SCLCLockFrequency(Hz)

10k

100k

10M

V+=3.3V

V+=5.5V

-5

-10

-15

-20

-25

Frequency(MHz)

Local100mV

Noise

Remote100mV

Noise

Local250mV

Noise

Remote250mV

Noise

500

450

400

350

300

250

200

150

100

ConversionRate(conversions/sec)

0.0625

0.125

0.25

0.5

V+=2.7V

V+=5.5V

TMP421-Q1, TMP422-Q1, TMP423-Q1

www.ti.com

SBOS821 – NOVEMBER 2016

Product Folder Links: TMP421-Q1 TMP422-Q1 TMP423-Q1

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Typical Characteristics (continued)

at TA = 25°C and V+ = 5 V (unless otherwise noted)

Figure 8. Temperature Error vs Power-Supply Noise

Frequency

Figure 9. Quiescent Current vs Conversion Rate

Figure 10. Shutdown Quiescent Current vs SCL Clock

Frequency

Figure 11. Shutdown Quiescent Current vs Supply Voltage

TMP421 Datasheet(PDF) 9 Page - Texas Instruments

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