MCP3021_13 datasheet(9/26 Pages) MICROCHIP

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DS21805B-page 9

MCP3021

Note: Unless otherwise indicated, VDD = 5V, VSS = 0V, I

2C Fast Mode Timing (SCL = 400 kHz), Continuous Conversion

Mode (fSAMP = 22.3 ksps), TA = +25°C.

FIGURE 2-25:

ENOB vs. VDD.

FIGURE 2-26:

SFDR vs. Input Frequency.

FIGURE 2-27:

Spectrum Using I2C Fast

Mode (Representative Part, 1 kHz Input

Frequency).

FIGURE 2-28:

ENOB vs. Input Frequency.

FIGURE 2-29:

Spectrum Using I2C

Standard Mode (Representative Part, 1 kHz

Input Frequency).

FIGURE 2-30:

IDD (Conversion) vs. VDD.

11.5

11.55

11.6

11.65

11.7

11.75

11.8

11.85

11.9

11.95

2.533.544.555.5

VDD (V)

9.95

9.90

9.85

9.80

9.75

9.70

9.65

9.60

9.55

9.50

110

Input Frequency (kHz)

VDD = 2.7V

VDD = 5 V

-130

-120

-110

-100

-90

-80

-70

-60

-50

-40

-30

-20

-10

2000

4000

6000

8000

10000

Frequency (Hz)

9.5

10.5

11.5

110

Input Frequency (kHz)

VDD = 2.7V

VDD = 5V

9.5

9.0

8.5

8.0

7.7

7.0

-130

-110

-90

-70

-50

-30

-10

500

1000

1500

2000

2500

Frequency (Hz)

100

150

200

250

2.5

3.5

4.5

5.5

VDD (V)

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