MCP3021 datasheet(7/26 Pages) MICROCHIP

7 / 26 page

 2003 Microchip Technology Inc.

DS21805A-page 7

MCP3021

Note: Unless otherwise indicated, VDD = 5V, VSS = 0V, I2C Fast Mode Timing (SCL = 400 kHz), Continuous Conversion

Mode (fSAMP = 22.3 ksps), TA = +25°C.

FIGURE 2-13:

DNL vs. Code

(Representative Part).

FIGURE 2-14:

DNL vs. Temperature.

FIGURE 2-15:

Gain Error vs. VDD.

FIGURE 2-16:

DNL vs. Code

(Representative Part, VDD = 2.7V).

FIGURE 2-17:

DNL vs. Temperature

(VDD =2.7V).

FIGURE 2-18:

Offset Error vs. VDD.

-0.5

-0.4

-0.3

-0.2

-0.1

0.1

0.2

0.3

0.4

0.5

256

512

768

1024

Digital Code

-1

-0.8

-0.6

-0.4

-0.2

0.2

0.4

0.6

0.8

-50

-25

100

125

Temperature (°C)

Negative DNL

Positive DNL

0.25

0.20

0.15

0.10

0.005

-0.005

-0.10

-0.15

-0.20

-0.25

-1

-0.9

-0.8

-0.7

-0.6

-0.5

-0.4

-0.3

-0.2

-0.1

2.53

3.54

4.555.5

VDD (V)

Fast Mode

(fSCL=100 kHz)

Standard Mode

(fSCL=400 kHz)

-0.025

-0.05

-0.075

-0.1

-0.15

-0.175

-0.2

-0.225

-0.25

-0.125

-0.5

-0.4

-0.3

-0.2

-0.1

0.1

0.2

0.3

0.4

0.5

256

512

768

1024

Digital Code

-1

-0.8

-0.6

-0.4

-0.2

0.2

0.4

0.6

0.8

-50

-25

100

125

Temperature (°C)

Positive DNL

Negative DNL

0.25

0.20

0.15

0.10

0.005

-0.005

-0.10

-0.15

-0.20

-0.25

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

2.53

3.544.5

55.5

VDD (V)

fSCL = 100 kHz & 400 kHz

0.25

0.225

0.2

0.175

0.15

0.1

0.075

0.05

0.025

0.125

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